CN115220576A - Method, device, device and storage medium for viewing angle control - Google Patents

Abstract

According to an embodiment of the present disclosure, a method, an apparatus, a device, and a storage medium for picture perspective control are provided. The method comprises the following steps: generating a first picture of the virtual scene at a first moment, wherein the first picture corresponds to a first virtual visual angle; determining a second virtual perspective based on first position information of a first group of elements included in the virtual scene at a second time; determining a change in perspective from a first virtual perspective to a second virtual perspective; and generating at least one second picture of the virtual scene based on the perspective change. Based on the above manner, the embodiment of the disclosure can provide the picture view angle more matching the element arrangement in the virtual scene, so that the picture can more effectively present the scene information.

Description

Method, device, device and storage medium for viewing angle control

technical field

Example embodiments of the present disclosure generally relate to the field of computers, and in particular, to a method, apparatus, device, and computer-readable storage medium for screen viewing angle control.

Background technique

With the development of computer level, various forms of electronic devices can greatly enrich people's daily life. For example, people can utilize electronic devices for various types of entertainment or virtual interactions.

In scenarios of entertainment or virtual interaction, people can obtain pictures in the virtual environment through presentation devices (eg, screens, projection devices, etc.) of electronic devices. How to effectively control the viewing angle of the picture to provide a higher quality picture has become the focus of current attention.

SUMMARY OF THE INVENTION

In a first aspect of the present disclosure, a method for controlling a viewing angle of a picture is provided. The method includes generating a first picture of the virtual scene at the first moment, the first picture corresponding to the first virtual perspective; and determining the second virtual perspective based on the first position information of the first group of elements included in the virtual scene at the second moment; determining a perspective change from the first virtual perspective to the second virtual perspective; and generating at least one second picture of the virtual scene based on the perspective change.

In a second aspect of the present disclosure, an apparatus for screen viewing angle control is provided. The device includes a first generation module configured to generate a first picture of the virtual scene at a first moment, the first picture corresponding to a first virtual perspective; a perspective determination module configured to generate a first picture of the virtual scene at a second moment based on the first picture included in the virtual scene at the second moment. a first position information of a set of elements to determine a second virtual perspective; a change determination module configured to determine a perspective change from the first virtual perspective to the second virtual perspective; and a second generation module configured to, based on the perspective change, At least one second picture of the virtual scene is generated.

In a third aspect of the present disclosure, an electronic device is provided. The apparatus includes at least one processing unit; and at least one memory coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit. The instructions, when executed by at least one processing unit, cause an apparatus to perform the method of the first aspect.

In a fourth aspect of the present disclosure, a computer-readable storage medium is provided. A computer program is stored on the medium, and when the program is executed by the processor, the method of the first aspect is implemented.

It should be understood that what is described in this Summary section is not intended to limit key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood from the following description.

Description of drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent when taken in conjunction with the accompanying drawings and with reference to the following detailed description. In the drawings, the same or similar reference numbers refer to the same or similar elements, wherein:

1A and 1B show schematic diagrams of rendering a picture of a virtual environment according to a conventional process;

2 shows a schematic diagram of an example environment in which embodiments of the present disclosure can be implemented;

3A to 3E illustrate schematic diagrams of screen viewing angle control according to some embodiments of the present disclosure;

4A and 4B illustrate schematic diagrams of viewing angle changes according to some embodiments of the present disclosure;

FIG. 5 shows a schematic diagram of viewing angle changes according to further embodiments of the present disclosure;

FIG. 6 shows a flowchart of an example process for screen viewing angle control according to some embodiments of the present disclosure;

FIG. 7 shows a block diagram of an apparatus for screen viewing angle control according to some embodiments of the present disclosure; and

8 illustrates a block diagram of a device capable of implementing various embodiments of the present disclosure.

Detailed ways

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the protection scope of the present disclosure.

In the description of embodiments of the present disclosure, the term "comprising" and the like should be understood as open-ended inclusion, ie, "including but not limited to". The term "based on" should be understood as "based at least in part on". The terms "one embodiment" or "the embodiment" should be understood to mean "at least one embodiment". The term "some embodiments" should be understood to mean "at least some embodiments." Other explicit and implicit definitions may also be included below.

As discussed above, the control of the viewing angle is a task in the interaction of the virtual environment. The quality of the screen viewing angle control will directly affect the user's interactive experience.

Video games are a typical virtual environment interaction scene, and the viewing angle control of the game screen will directly affect the experience of players or spectators. In games such as Auto Chess, the game scene is relatively fixed, and the positions of game elements (also called virtual objects, eg, chess pieces in the Auto Chess game) will change as the game progresses.

For example, FIG. 1A shows a schematic diagram of a screen 100A presenting a virtual environment according to a conventional process. As shown in FIG. 1A , screen 100A presents, for example, the entire space of an entire virtual environment (eg, an auto chess board) 110 . In the case of FIG. 1A, such a screen 100A may be appropriate.

However, as elements 120 in scene 110 move, the distribution of elements 120 in scene 110 may change dramatically. Traditional view angle controls always provide a fixed view angle, or rely on user interaction to change the view angle. As a result, the generated screen may not bring a good user experience.

For example, as shown in FIG. 1B , elements 120 in scene 110 may aggregate to a certain area in scene 110 after a period of time. In the case of using a fixed viewing angle, the generated picture 100B will have a large blank area, and such a picture 100B will be difficult to fully present the effective information in the scene 110, which may greatly affect the interactive experience.

An embodiment of the present disclosure proposes a solution for viewing angle control of a picture. In this solution, first, a picture of the virtual scene at the first moment may be generated, wherein the picture may correspond to, for example, the first virtual perspective. Further, the second virtual perspective may be determined based on the positions of the first group of elements included in the virtual scene at the second moment.

Correspondingly, the change of the viewing angle from the first virtual viewing angle to the second virtual viewing angle can be determined, and a new picture of the virtual scene is generated based on the change of the viewing angle.

Thus, the embodiments of the present disclosure can dynamically adjust the virtual viewing angle by tracking changes in the positions of elements in the virtual scene, thereby realizing fine control over the virtual viewing angle, making it more suitable for the distribution of elements in the scene. Based on such a manner, the embodiments of the present disclosure can improve the quality of the generated picture, thereby greatly improving the user's interactive experience.

Various example implementations of the scheme are described in detail below further in conjunction with the accompanying drawings. In order to illustrate the principles and ideas of embodiments of the present disclosure, some of the following description will refer to the field of gaming. It will be appreciated, however, that this is merely exemplary and is not intended to limit the scope of the present disclosure in any way. The embodiments of the present disclosure can be applied to various fields of simulation, simulation, virtual reality, augmented reality, and the like.

Example environment

Referring first to FIG. 2, a schematic diagram of an example environment 200 in which example implementations in accordance with the present disclosure may be implemented is schematically shown. As shown in FIG. 2 , example environment 200 may include electronic device 240 .

As shown in FIG. 2 , electronic device 240 may be configured to determine the location of element 230 for use in virtual scene 220 and to determine corresponding virtual perspective 210 accordingly. Further, the electronic device 240 may generate a picture 250 related to the virtual scene 220 based on the determined virtual viewing angle 210 .

In some embodiments, the electronic device 240 may also include a presentation device for presenting the generated screen 250 to the user. Examples of such presentation devices may include, but are not limited to, various types of displays, projection devices, smart glasses, and the like. Accordingly, such electronic devices 240 may include, but are not limited to, smart phones, tablet computers, palmtop computers, portable game consoles, virtual reality or augmented reality devices, and the like, for example.

In some embodiments, the electronic device 240 may be, for example, a device that is physically separate from the presentation device. Exemplarily, the electronic device 240 can be, for example, a cloud computing device for screen generation, which can send the generated 250 to an independent presentation device in a wired or wireless manner, so as to realize the interaction with the virtual environment 220. .

The specific process of determining the virtual viewing angle 210 and generating the picture 250 will be described in detail below.

Virtual View Dynamic Control

In some embodiments, the electronic device 110 may dynamically adjust the virtual viewing angle according to the arrangement of elements in the scene, thereby improving the quality of the generated picture. The specific process of adjusting the virtual viewing angle will be described below with reference to FIGS. 3A to 3D .

As shown in FIG. 3A , in an initial state (eg, corresponding to the first moment), the virtual viewing angle 310 - 1 may be initially configured, for example, so that the corresponding picture 320 - 1 may cover the entire area of the virtual scene 220 , for example .

As shown in FIG. 3A, for example, a plurality of elements (eg, pieces) 330-1 and 330-2 (referred to individually or collectively as elements 330) may be included in the virtual scene 220, for example. Such elements may be automatically added to virtual scene 220 by electronic device 240, for example. Taking the game of auto chess as an example, the element 330-2 may be automatically added by the electronic device 240 at the beginning of the round, for example.

In some embodiments, such elements may also be added by the electronic device 240 in response to a user operation, for example. For example, at the beginning of a round of auto chess, the user may cause element 330 - 1 to be added to a corresponding position in virtual scene 220 through a touch drag or mouse drag action, for example. Alternatively, element 330-2 may also be added automatically, for example, as a result of a user triggering a particular game skill. For example, certain game skills can summon new elements (eg, pawns).

In some embodiments, elements 330 in virtual scene 220 may move according to predetermined trajectories. For example, the electronic device 240 may determine the trajectory of each element 330 and cause it to move automatically in the scene 330 . For example, using virtual scene 220 as an example, element 330-1 and element 330-2 may be controlled to move toward each other.

In some embodiments, electronic device 240 may periodically determine the location of element 330 in virtual scene 220 . For example, electronic device 240 may periodically determine the positions of elements in virtual scene 220 every 0.05 seconds.

Exemplarily, as shown in FIG. 3B , the electronic device 240 may determine that the position of the element 330 in the virtual scene 220 has changed at the second moment. As shown in Figure 3B, for example, element 330-1 and element 330-2 have moved.

Further, the electronic device 240 may determine the second virtual viewing angle 340 based on the position of the element 330 at the second moment. Specifically, determining the second virtual perspective 340 may include determining the position of the second virtual perspective 340 and/or determining the zoom scale of the second virtual perspective 340 .

In some embodiments, the electronic device 240 may determine the position information of the plurality of elements 330 at the second moment, and further determine the predetermined reference positions of the plurality of elements 330 .

In some embodiments, the predetermined reference position may be the center position of the group of elements. Exemplarily, the electronic device 240 may determine the coordinates of each element 330 in the virtual scene 220, and calculate the center coordinates of the plurality of elements 330 as predetermined reference positions.

In some embodiments, the electronic device 240 may also assign different weights to different elements, and determine the predetermined reference position as the virtual center of gravity position of the plurality of elements 330 . Illustratively, element 330-2, for example, has a larger size than element 330-1, which, for example, may be assigned a larger weight.

In some embodiments, the predetermined reference position may also be the center position of the smallest area indicated by the position information. Exemplarily, the electronic device 240 may determine the minimum area covering the plurality of elements 330 based on the positions of the plurality of elements 330, and determine the center position of the field as the predetermined reference position.

Further, the electronic device 240 may determine the virtual center of gravity positions of the plurality of elements 330 based on the positions and weights of the plurality of elements 330 as a predetermined reference position.

In some embodiments, the electronic device 240 may determine the second virtual viewing angle based on the predetermined reference position, so that the picture parameter corresponding to the second virtual viewing angle matches the determined predetermined reference position. Exemplarily, the picture parameters may include, but are not limited to, the center of the picture, the edge of the picture, the focus of the picture, and the like.

Taking the virtual viewing angle to generate a picture from directly above as an example, the electronic device 240 may make the coordinates of the virtual viewing angle on the horizontal plane to be the same as the coordinates of the predetermined reference position on the horizontal plane. Therefore, the center of the picture corresponding to the second virtual viewing angle will be the same as the predetermined reference position.

In some embodiments, the electronic device 240 may also determine the zoom scale based on the positions of the plurality of elements 330 . It should be understood that the zoom scale may correspond to the scene range covered by the generated picture. For example, a larger zoom scale can correspond to a smaller scene extent, and more scene detail.

Specifically, the electronic device 240 may determine the second virtual viewing angle 340 based on the positions of the multiple elements 330 , so that the picture range corresponding to the second virtual viewing angle covers at least the multiple elements 330 . Thus, the electronic device 240 can ensure that each element can be effectively rendered, and the generation of blank areas can be reduced.

In order to ensure the interactive experience, during the screen generation process, the switching of the screen perspective should be smooth. The electronic device 240 may further control the generation of subsequent pictures based on the viewing angle change from the first virtual viewing angle 310-1 to the second virtual viewing angle 310-2.

For example, at the second moment shown in FIG. 3B , although it is determined that the preferred viewing angle should be the second virtual viewing angle 340 , the electronic device 240 may not directly generate the corresponding image based on the second virtual viewing angle 340 to avoid generating the viewing angle The suddenness of the switch.

Exemplarily, at the second moment, the electronic device 240 may, for example, generate a corresponding picture 320-2 based on the virtual viewing angle 310-2. For example, the virtual viewing angle 310-2 may be the same as the first virtual viewing angle 310-1, thereby ensuring smoother changes from the picture 320-1 to the picture 320-2.

Further, at the third moment as shown in FIG. 3C , the electronic device 240 may determine the virtual viewing angle 310 - 3 based on the viewing angle change from the first virtual viewing angle 310 - 1 to the second virtual viewing angle 340 . Such a virtual viewing angle 310-3, for example, is also referred to as a transition viewing angle, which may be determined by sampling, for example, based on a change from the viewing angle.

The specific process of viewing angle change sampling will be described in detail below with reference to FIGS. 4A to 4B and FIG. 5 .

Further, the electronic device 240 may, for example, generate a corresponding picture 320-3 based on the virtual viewing angle 310-3. It can be seen that the virtual viewing angle 310-3 is closer to the determined second virtual viewing angle 340 than the first virtual viewing angle 310-1.

Specifically, the electronic device 240 may determine the picture parameters of the picture 320-3 to be generated based on the virtual viewing angle 320-3, and generate the picture 320-3 based on the picture parameters. Exemplarily, the picture parameters may include, but are not limited to, the center of the picture, the edge of the picture, the focus of the picture, and the like. Additionally, the electronic device 240 may also generate the picture 320-3 based on both the zoom scale of the virtual viewing angle 320-3 and the picture parameters.

At the fourth moment as shown in FIG. 3D , the electronic device 240 may, for example, determine the virtual viewing angle 310 - 4 based on the viewing angle change, which may be the same as the second virtual viewing angle 340 , for example. As shown in FIG. 3D, the electronic device 240 may further generate a picture 320-4 based on the virtual perspective 310-4.

It can be seen with reference to FIGS. 3A to 3D , the electronic device 240 can control the virtual viewing angle to change continuously, so as to make the change of the viewing angle of the screen more smooth. In addition, the generated picture can also better fit the distribution of elements in the scene, thereby improving the effectiveness of picture information and improving interaction efficiency.

Although in the example of FIGS. 3C and 3D, the elements in the virtual scene 220 have not changed further, this is only exemplary. In some embodiments, the positions of elements in the virtual scene 220 may still change synchronously during the viewing angle change.

Specifically, the electronic device 240 may, for example, automatically add at least one element or delete at least one element to the virtual scene 220 . Alternatively, the electronic device 240 may also add or delete at least one element in response to user interaction. In addition, elements in the virtual scene 220 may also move according to predetermined trajectories.

In some embodiments, the electronic device 240 may further determine position information of a plurality of elements in the virtual scene 220 to determine a new virtual perspective. As shown in FIG. 3E , unlike the example shown in FIG. 3C , the electronic device 240 may determine that the element 330 - 3 is deleted, resulting in a change in the distribution of the plurality of elements.

Accordingly, the electronic device 240 may, for example, determine the updated location information of the group of elements 330 in the virtual scene 220 . The electronic device 240 may, for example, determine the fourth virtual viewing angle 350 based on the updated position information, and use it as a new target virtual viewing angle, so that the viewing angle change approaches the fourth virtual viewing angle 350 instead of the previously determined second virtual viewing angle 340 .

Further, the electronic device 240 may determine a new perspective change (also referred to as a second perspective change) based on the third virtual perspective 310-3 and the fourth virtual perspective 350, and generate a follow-up of the virtual scene 220 based on the second perspective change screen.

Based on such a manner, the embodiments of the present disclosure can dynamically track real-time changes of elements in a scene, and realize a viewing angle control effect in which elements dynamically follow.

Virtual View Change Control

As discussed above, the electronic device 240 may determine a transition perspective (eg, virtual perspective 310-3) based on the perspective change.

In some embodiments, the electronic device 240 may determine the process of the viewing angle change based on the distance between the starting position and the target position of the viewing angle change.

In some embodiments, the viewing angle change may include a positional change of the virtual viewing angle. For example, the positions of different virtual viewing angles may correspond to different picture parameters (eg, the center of the picture). In some embodiments, the viewing angle change may also include a scaling scale change of the virtual viewing angle. For example, different zoom scales may indicate different picture ranges.

In some embodiments, in order to make the transition of the viewing angle smoother, the electronic device 240 may further subdivide the viewing angle change into multiple stages. Specifically, the angle of view change may include, for example, an accelerated change phase, in which the position change speed or the zoom scale change speed of the virtual angle of view gradually increases. The viewing angle change may also include a uniform change phase, in which the position change speed or the zoom scale change speed of the virtual view angle remains unchanged. In addition, the angle of view change may further include a deceleration change phase in which the speed of position change or the speed of zoom scale change of the virtual angle of view gradually decreases.

FIG. 4A shows a schematic diagram of a viewing angle change 400A according to an embodiment of the present disclosure. As shown in FIG. 4A, the change in angle of view 400A may indicate a change in the position of the angle of view, and includes an acceleration phase 410-1, a constant velocity phase 410-2, and a deceleration phase 410-3.

In some embodiments, the range of the acceleration phase 410-1, the constant velocity phase 410-2, and the deceleration phase 410-3 may be based on a range from a starting position (eg, the first position of the first virtual view) to the target position (eg, the first position of the first virtual view). The distance from the second position of the two virtual viewing angles) is determined. For example, the proportions of the acceleration stage 410-1 and the deceleration stage 410-3 in the total distance can be set to be 20%, for example, and the distance proportion of the constant speed stage 410-2 is 60%.

Based on this method, the virtual viewing angle is in the acceleration movement stage in the first 20% of the moving process, in the constant speed movement stage in the middle 60% distance, and in the deceleration movement stage in the last 20% distance. Thus, the viewing angle change can be made smoother.

Similarly, FIG. 4B shows a schematic diagram of a viewing angle change 400A according to yet another embodiment of the present disclosure. As shown in FIG. 4B, the change in viewing angle 400B may indicate a change in zoom scale, and includes an acceleration phase 420-1, a constant velocity phase 420-2, and a deceleration phase 420-3.

In some embodiments, the range of the acceleration phase 420-1, the constant velocity phase 420-2, and the deceleration phase 420-3 may be based on a range from a starting position (eg, a first position of a first virtual view) to a target position (eg, a first position of the first virtual view) The distance from the second position of the two virtual viewing angles) is determined. For example, the proportions of the acceleration stage 410-1 and the deceleration stage 410-3 in the total distance can be set to be 20%, for example, and the distance proportion of the constant speed stage 410-2 is 60%.

Based on this method, the virtual viewing angle is in the stage of accelerating scale change in the first 20% of the moving process, in the stage of uniform scale change in the middle 60% of the distance, and in the stage of deceleration in scale in the last 20% of the distance. Thus, the viewing angle change can be made smoother.

In some embodiments, the viewing angle change may include both a virtual viewing angle position change and a virtual viewing angle scaling scale change, so that the screen center position and the screen range are simultaneously changed.

In some embodiments, as discussed above with reference to FIG. 3E , the electronic device 240 may also switch to the second viewing angle change while the first viewing angle change is not completed. FIG. 5 shows a schematic diagram 500 of viewing angle changes according to further embodiments of the present disclosure.

As shown in FIG. 5 , the change of the first viewing angle includes, for example, changing from the first virtual viewing angle 550 to the second virtual viewing angle 530 - 1 . During the process of changing the first viewing angle, the electronic device 240 may, for example, determine at the third virtual viewing angle 540 to change to a new fourth virtual viewing angle 530-2.

As shown in FIG. 5 , the third virtual viewing angle 540 may, for example, correspond to the process of the constant speed stage 510 - 2 of the first viewing angle change. That is, the acceleration phase 510-1 has been completed, and the part of the constant velocity phase 510-2 and the deceleration phase 510-3 have not yet started.

In this case, the electronic device 240 may according to the first distance from the first position of the first virtual viewing angle 550 to the third position of the third virtual viewing angle 540 and from the first position of the third virtual viewing angle 540 to the fourth virtual viewing angle The second distance of the fourth position of the viewing angle 530-2 determines which motion state the virtual viewing angle should be in.

Specifically, the electronic device 240 may re-divide the acceleration phase, the constant speed phase, and the deceleration phase based on the total distance of the first distance and the second distance. For example, as shown in FIG. 5 , the first distance is 20% of the total distance, so the electronic device 240 can determine that in the second viewing angle change, it is in the acceleration phase 520 - 1 from the third virtual viewing angle 540 , and then enters accordingly. to the constant speed stage 520-2 and the deceleration stage 520-3.

It should be understood that although FIG. 5 describes the superposition of two viewing angle changes with the viewing angle position changing speed, the zooming scale changing speed of the viewing angle can also be performed according to a similar manner in FIG. 5 , which will not be described in detail here.

Based on this approach, the implementation of the present disclosure can track changes of elements in the scene in a more fine-grained manner, thereby achieving smoother viewing angle following.

Example process

FIG. 6 shows a flowchart of a process 600 of viewing angle control according to some embodiments of the present disclosure. Illustratively, process 600 may be implemented by electronic device 240 of FIG. 2 independently, or by a combination of electronic device 240 and other computing devices. For ease of discussion, process 600 will be described in conjunction with FIG. 2 .

As shown in FIG. 6 , at block 610 , the electronic device 240 generates a first picture of the virtual scene at a first moment, and the first picture corresponds to a first virtual perspective.

At block 620, the electronic device 240 determines a second virtual perspective based on the first position information of the first group of elements included in the virtual scene at the second time instant.

At block 630, the electronic device 240 determines a perspective change from the first virtual perspective to the second virtual perspective.

At block 640, based on the perspective change, the electronic device 240 generates at least one second view of the virtual scene.

In some embodiments, generating at least one second picture of the virtual scene includes: determining at least one transitional perspective based on the perspective change; determining picture parameters of at least one second picture to be generated based on the at least one transitional perspective; and based on the picture parameters , generating at least one second picture.

In some embodiments, determining the second virtual viewing angle includes: determining a predetermined reference position of the first group of elements based on the first position information; and determining the second virtual viewing angle based on the predetermined reference position, such that a picture parameter corresponding to the second virtual viewing angle match the predetermined reference position.

In some embodiments, determining the predetermined reference position includes: determining a center position of the first group of elements; or determining a virtual center of gravity position of the first group of elements, each of which has a corresponding weight.

In some embodiments, determining the second virtual viewing angle includes: determining the second virtual viewing angle based on the first position information, such that a picture range corresponding to the second virtual viewing angle covers at least the first group of elements.

In some embodiments, determining the viewing angle change includes: determining the viewing angle change based on a distance from a first position of the first virtual viewing angle to a second position of the second virtual viewing angle, the viewing angle change including a position change or a scaling scale of the virtual viewing angle Variety.

In some embodiments, the angle of view change includes: an accelerated change phase, in which the position change speed or the zoom scale change speed of the virtual angle of view gradually increases, and the constant speed change phase, in which the position change speed or the zoom scale change speed of the virtual angle of view remains unchanged, and a deceleration change phase, in which the position change speed or the zoom scale change speed of the virtual viewing angle gradually decreases.

In some embodiments, the viewing angle change is a first viewing angle change, and the method further includes: determining a third virtual viewing angle corresponding to the third moment; and determining, based on the second position information of the second group of elements included in the virtual scene at the third moment, determining a fourth virtual viewing angle; determining a second viewing angle change based on the third virtual viewing angle and the fourth virtual viewing angle; and generating at least one third picture of the virtual scene based on the second viewing angle change.

In some embodiments, determining the second viewing angle change includes: in response to the third time instant being earlier than the fourth time instant of the expected change to the second virtual viewing angle, based on the first position of the first virtual viewing angle to the third position of the third virtual viewing angle The first distance of the third virtual viewing angle and the second distance from the third position of the third virtual viewing angle to the fourth position of the fourth virtual viewing angle, determine the second viewing angle change, and the second viewing angle change includes the position change of the virtual viewing angle or the zoom scale change.

In some embodiments, the method further includes: in response to the first user operation, adding at least one element in the virtual scene; in response to the second user operation, removing at least one element from the virtual scene; automatically adding in the virtual scene at least one element; automatically removing at least one element from the virtual scene; or making at least one element in the virtual scene move according to a predetermined trajectory.

Example installations and equipment

Embodiments of the present disclosure also provide corresponding apparatuses for implementing the above-mentioned methods or processes. FIG. 7 shows a schematic structural block diagram of an apparatus 700 for controlling a picture viewing angle according to some embodiments of the present disclosure.

As shown in FIG. 7 , the apparatus 700 includes a first generating module 710 configured to generate a first picture of the virtual scene at a first moment, where the first picture corresponds to a first virtual perspective. The apparatus 700 further includes a viewing angle determination module 720 configured to determine a second virtual viewing angle based on the first position information of the first group of elements included in the virtual scene at the second moment. The apparatus 700 further includes a change determination module 730 configured to determine a change in perspective from the first virtual perspective to the second virtual perspective. In addition, the apparatus 700 further includes a second generating module 740 configured to generate at least one second picture of the virtual scene based on the change of the viewing angle.

In some embodiments, the second generation module 740 is further configured to: determine at least one transitional viewing angle based on the viewing angle change; determine a picture parameter of at least one second picture to be generated based on the at least one transitional viewing angle; and based on the picture parameter, At least one second picture is generated.

In some embodiments, the viewing angle determining module 720 is further configured to: determine a predetermined reference position of the first group of elements based on the first position information; and determine a second virtual viewing angle based on the predetermined reference position, such that the corresponding second virtual viewing angle The picture parameters are matched to a predetermined reference position.

In some embodiments, the viewing angle determination module 720 is further configured to: determine the center position of the first group of elements; or determine the virtual center of gravity position of the first group of elements, each of which has a corresponding weight.

In some embodiments, the viewing angle determination module 720 is further configured to: determine the second virtual viewing angle based on the first position information, so that the picture range corresponding to the second virtual viewing angle covers at least the first group of elements.

In some embodiments, the change determination module 730 is further configured to: determine a change in viewing angle based on the distance from the first position of the first virtual viewing angle to the second position of the second virtual viewing angle, the change in viewing angle including the position of the virtual viewing angle Change or zoom scale changes.

In some embodiments, the angle of view change includes: an accelerated change phase, in which the position change speed or the zoom scale change speed of the virtual angle of view gradually increases, and the constant speed change phase, in which the position change speed or the zoom scale change speed of the virtual angle of view remains unchanged, and a deceleration change phase, in which the position change speed or the zoom scale change speed of the virtual viewing angle gradually decreases.

In some embodiments, the viewing angle change is a first viewing angle change, and the viewing angle determination module 720 is further configured to determine a third virtual viewing angle corresponding to the third moment; position information, to determine a fourth virtual perspective; the change determination module 730 is further configured to determine a second perspective change based on the third virtual perspective and the fourth virtual perspective; the second generation module 740 is also configured to generate a second perspective change based on the second perspective change At least one third picture of the virtual scene.

In some embodiments, the change determination module 730 is further configured to: in response to the third time instant being earlier than the fourth time instant of the expected change to the second virtual viewing angle, the first position to the third virtual viewing angle based on the first position of the first virtual viewing angle The first distance of the three positions and the second distance from the third position of the third virtual viewing angle to the fourth position of the fourth virtual viewing angle determine a second viewing angle change, and the second viewing angle change includes a position change or a scaling change of the virtual viewing angle.

In some embodiments, the apparatus 700 further includes an element control module configured to: in response to the first user operation, add at least one element in the virtual scene; in response to the second user operation, remove at least one element from the virtual scene ; automatically adding at least one element in the virtual scene; automatically removing at least one element from the virtual scene; or making at least one element in the virtual scene move according to a predetermined trajectory.

The units included in the apparatus 700 may be implemented in various manners, including software, hardware, firmware, or any combination thereof. In some embodiments, one or more units may be implemented using software and/or firmware, such as machine-executable instructions stored on a storage medium. In addition to or as an alternative to machine-executable instructions, some or all of the units in apparatus 700 may be implemented, at least in part, by one or more hardware logic components. By way of example and not limitation, exemplary types of hardware logic components that may be used include field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standards (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLD), etc.

8 illustrates a block diagram of a computing device/server 800 in which one or more embodiments of the present disclosure may be implemented. It should be understood that the computing device/server 800 shown in FIG. 8 is merely exemplary and should not constitute any limitation on the functionality and scope of the embodiments described herein.

As shown in FIG. 8, computing device/server 800 is in the form of a general purpose computing device. Components of computing device/server 800 may include, but are not limited to, one or more processors or processing units 810, memory 820, storage devices 830, one or more communication units 840, one or more input devices 860, and one or more Output device 860. The processing unit 810 may be an actual or virtual processor and can perform various processes according to programs stored in the memory 820 . In a multiprocessor system, multiple processing units execute computer-executable instructions in parallel to increase the parallel processing capabilities of the computing device/server 800 .

Computing device/server 800 typically includes a number of computer storage media. Such media may be any available media accessible by computing device/server 800, including but not limited to volatile and nonvolatile media, removable and non-removable media. Memory 820 may be volatile memory (eg, registers, cache, random access memory (RAM)), non-volatile memory (eg, read only memory (ROM), electrically erasable programmable read only memory (EEPROM) , Flash) or some combination of them. Storage device 830 may be removable or non-removable media, and may include machine-readable media, such as flash drives, magnetic disks, or any other media that may be capable of storing information and/or data (eg, training data for training). ) and can be accessed within computing device/server 800.

Computing device/server 800 may further include additional removable/non-removable, volatile/non-volatile storage media. Although not shown in Figure 8, disk drives for reading or writing from removable, non-volatile magnetic disks (eg, "floppy disks") and for reading or writing from removable, non-volatile optical disks may be provided CD-ROM drive for reading or writing. In these cases, each drive may be connected to a bus (not shown) by one or more data media interfaces. Memory 820 may include a computer program product 825 having one or more program modules configured to perform various methods or actions of various embodiments of the present disclosure.

The communication unit 840 enables communication with other computing devices through a communication medium. Additionally, the functions of the components of computing device/server 800 may be implemented in a single computing cluster or multiple computing machines capable of communicating over a communication connection. Thus, computing device/server 800 may operate in a networked environment using logical connections to one or more other servers, network personal computers (PCs), or another network node.

Input device 850 may be one or more input devices, such as a mouse, keyboard, trackball, and the like. Output device 860 may be one or more output devices, such as a display, speakers, printer, and the like. The computing device/server 800 may also communicate with one or more external devices (not shown), such as storage devices, display devices, etc., through the communication unit 840, as needed, with one or more external devices that enable the user to communicate with the computing device/server. 800 interacts with any device (eg, network card, modem, etc.) that enables computing device/server 800 to communicate with one or more other computing devices. Such communication may be performed via an input/output (I/O) interface (not shown).

According to an exemplary implementation of the present disclosure, there is provided a computer-readable storage medium having stored thereon one or more computer instructions, wherein the one or more computer instructions are executed by a processor to implement the method described above.

Aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products implemented in accordance with the present disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer readable program instructions.

These computer readable program instructions may be provided to the processing unit of a general purpose computer, special purpose computer or other programmable data processing apparatus to produce a machine that causes the instructions when executed by the processing unit of the computer or other programmable data processing apparatus , resulting in means for implementing the functions/acts specified in one or more blocks of the flowchart and/or block diagrams. These computer readable program instructions can also be stored in a computer readable storage medium, these instructions cause a computer, programmable data processing apparatus and/or other equipment to operate in a specific manner, so that the computer readable medium on which the instructions are stored includes An article of manufacture comprising instructions for implementing various aspects of the functions/acts specified in one or more blocks of the flowchart and/or block diagrams.

Computer-readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other equipment to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other equipment to produce a computer-implemented process , thereby causing instructions executing on a computer, other programmable data processing apparatus, or other device to implement the functions/acts specified in one or more blocks of the flowcharts and/or block diagrams.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various implementations of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executables for implementing the specified logical function(s) instruction. In some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or actions , or can be implemented in a combination of dedicated hardware and computer instructions.

While various implementations of the present disclosure have been described above, the foregoing description is exemplary, not exhaustive, and not limiting of the disclosed implementations. Numerous modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described implementations. The terminology used herein was chosen to best explain the principles of the implementations, the practical application or improvement over the technology in the marketplace, or to enable others of ordinary skill in the art to understand the implementations disclosed herein.

Claims (13)

1. A method for controlling the visual angle of a picture comprises

Generating a first picture of a virtual scene at a first moment, wherein the first picture corresponds to a first virtual visual angle;

determining a second virtual perspective based on first position information of a first group of elements included in the virtual scene at a second time;

determining a change in perspective from the first virtual perspective to the second virtual perspective; and

generating at least one second picture of the virtual scene based on the perspective change.

2. The method of claim 1, wherein generating at least one second picture of the virtual scene comprises:

determining at least one transition view based on the view change;

determining picture parameters of the at least one second picture to be generated based on the at least one transition view; and

generating the at least one second picture based on the picture parameters.

3. The method of claim 1, wherein determining a second virtual perspective comprises:

determining a predetermined reference position of the first group of elements based on the first position information; and

and determining the second virtual visual angle based on the preset reference position, so that the picture parameters corresponding to the second virtual visual angle are matched with the preset reference position.

4. The method of claim 3, wherein determining the predetermined reference location comprises:

determining a center position of the first set of elements; or

Determining a virtual center of gravity position for the first set of elements, the first set of elements each having a respective weight.

5. The method of claim 1, wherein determining a second virtual perspective comprises:

and determining the second virtual visual angle based on the first position information, so that the picture range corresponding to the second virtual visual angle at least covers the first group of elements.

6. The method of claim 1, wherein determining the perspective change comprises:

determining the change in perspective based on a distance from a first location of the first virtual perspective to a second location of the second virtual perspective, the change in perspective comprising a change in location or a change in zoom scale of a virtual perspective.

7. The method of claim 6, wherein the change in perspective comprises:

an accelerated change phase in which the position change speed or the zoom scale change speed of the virtual perspective is gradually increased,

a uniform velocity change stage in which the speed of position change or the speed of zoom scale change of the virtual perspective is kept constant, an

A deceleration change phase in which the speed of the change in position or the speed of the change in zoom scale of the virtual perspective is gradually reduced.

8. The method of claim 1, wherein the change in viewing angle is a first change in viewing angle, the method further comprising:

determining a third virtual perspective corresponding to a third moment;

determining a fourth virtual perspective based on second position information of a second group of elements included in the virtual scene at the third time;

determining a second perspective change based on the third virtual perspective and the fourth virtual perspective; and

generating at least one third picture of the virtual scene based on the second perspective change.

9. The method of claim 8, wherein determining a second perspective change comprises:

in response to the third time being earlier than a fourth time at which a change to the second virtual perspective is expected, determining the second perspective change based on a first distance from the first location of the first virtual perspective to a third location of the third virtual perspective and a second distance from the third location of the third virtual perspective to a fourth location of the fourth virtual perspective, the second perspective change comprising a change in position or a change in zoom scale of a virtual perspective.

10. The method of claim 1, further comprising:

adding at least one element in the virtual scene in response to a first user operation;

in response to a second user operation, removing at least one element from the virtual scene;

automatically adding at least one element in the virtual scene;

automatically removing at least one element from the virtual scene; or

At least one element in the virtual scene is moved according to a predetermined trajectory.

11. An apparatus for picture perspective control, comprising:

a first generating module configured to generate a first picture of a virtual scene at a first time, the first picture corresponding to a first virtual perspective;

a perspective determination module configured to determine a second virtual perspective based on first position information of a first group of elements included in the virtual scene at a second time;

a change determination module configured to determine a perspective change from the first virtual perspective to the second virtual perspective; and

a second generation module configured to generate at least one second picture of the virtual scene based on the perspective change.

12. An electronic device, comprising:

at least one processing unit; and

at least one memory coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit, the instructions when executed by the at least one processing unit causing the apparatus to perform the method of any of claims 1-10.

13. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 10.

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