CN104898280B - The display methods and head mounted display of a kind of head mounted display - Google Patents

Abstract

The invention discloses a display method of a head-mounted display and the head-mounted display. The method includes: acquiring a 2D image to be displayed; copying the 2D image into two copies, and displaying them on the left side of the head-mounted display respectively. eye screen and right eye screen. The technical solution provided by the present invention, on the one hand, enables the user to obtain complete visual information of the 2D image by duplicating the 2D image to be displayed and split-screen display on the left and right eye screens; The extraction of 2D images from different viewing angles and the split-screen display on the left and right eye screens enable users to obtain complete visual information of the 3D images. The problem in the prior art that 3D images and 2D images cannot be displayed at the same time is solved, so that users can watch 2D images and 3D images completely and normally at the same time, providing users with a more perfect viewing experience.

Description

A display method of a head-mounted display and the head-mounted display

technical field

The invention relates to the technical field of visual devices, in particular to a display method of a head-mounted display and the head-mounted display.

Background technique

Head-mounted display is a new technology in modern display technology. The development of high-resolution image reconstruction technology, the perfection of binary optics theory and design, and the maturity of holographic technology have opened up new ways for the design of head-mounted displays. , so that it has important applications in augmented reality, virtual reality, and stereoscopic display.

However, in the prior art, there are two schemes for displaying images on a head-mounted display, one is full-screen display without distinguishing between left and right eyes; the other is split-screen display with left and right eyes distinguished. The head-mounted display adopting the first display solution can only display 2D images normally, but cannot display 3D images normally. And the head-mounted display that adopts the second display scheme, when displaying 3D images, can make the left and right eyes of the wearer see the images of different viewing angles of the 3D images respectively, and know the complete 3D images; but when displaying 2D images, the wearer The left and right eyes see half of the 2D image, resulting in visual confusion.

Therefore, how to solve the problem that the head-mounted display cannot display 2D images and 3D images normally and perfectly at the same time is of great significance to the development of the head-mounted display.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a display method of a head-mounted display and a head-mounted display that overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a display method for a head-mounted display is provided, the method comprising:

Obtain the 2D image to be displayed;

Duplicate the 2D image into two copies, and display them on the left-eye screen and the right-eye screen of the head-mounted display respectively.

Optionally, said duplicating the 2D image into two copies and displaying them on the left-eye screen and the right-eye screen of the head-mounted display respectively includes:

Compressing the 2D image to a predetermined ratio and copying it into two copies, which are respectively displayed on the left half screen and the right half screen of the preprocessing screen of the head-mounted display;

Stretching the 2D image displayed on the left half of the pre-processing screen of the head-mounted display to a predetermined ratio and displaying it on the left-eye screen of the head-mounted display;

The 2D image displayed on the right half screen of the pre-processing screen of the head-mounted display is stretched to a predetermined ratio and then displayed on the right-eye screen of the head-mounted display.

Optionally, the method further includes:

Obtain the 3D image to be displayed;

A left-view 2D image and a right-view 2D image corresponding to the 3D image are extracted and displayed on the left-eye screen and the right-eye screen of the head-mounted display, respectively.

Optionally, the extracting the left-view 2D image and the right-view 2D image corresponding to the 3D image, and displaying them on the left-eye screen and the right-eye screen of the head-mounted display respectively include:

Compressing the left-view 2D image and right-view 2D image corresponding to the 3D image to a predetermined ratio, and displaying them on the left half screen and the right half screen of the preprocessing screen of the head-mounted display, respectively;

Stretching the 2D image displayed on the left half of the pre-processing screen of the head-mounted display to a predetermined ratio and displaying it on the left-eye screen of the head-mounted display;

The 2D image displayed on the right half screen of the pre-processing screen of the head-mounted display is stretched to a predetermined ratio and then displayed on the right-eye screen of the head-mounted display.

Optionally, the method is a display method of a head-mounted display based on the Android system.

According to another aspect of the present invention, a head-mounted display is provided, and the head-mounted display includes:

an acquisition unit, configured to acquire a 2D image to be displayed;

a preprocessing unit, configured to duplicate the 2D image into two copies;

The display unit is configured to display the duplicated 2D images on the left-eye screen and the right-eye screen of the head-mounted display respectively.

Optionally, the preprocessing unit is configured to compress the 2D image to a predetermined ratio and copy it into two copies, which are respectively displayed on the left half screen and the right half screen of the preprocessing screen of the head-mounted display;

The display unit is used to stretch the 2D image displayed on the left half screen of the pre-processing screen of the head-mounted display to a predetermined ratio and then display it on the left-eye screen of the head-mounted display; The 2D image displayed on the right half of the pre-processing screen of the head-mounted display is stretched by a predetermined ratio and then displayed on the right-eye screen of the head-mounted display.

Optionally, the acquiring unit is further configured to acquire a 3D image to be displayed;

The preprocessing unit is further configured to extract a left-view 2D image and a right-view 2D image corresponding to the 3D image;

The display unit is further configured to display a left-view 2D image and a right-view 2D image corresponding to the 3D image on a left-eye screen and a right-eye screen of the head-mounted display, respectively.

Optionally, the preprocessing unit is configured to compress the left-view 2D image and right-view 2D image corresponding to the 3D image to a predetermined ratio, and display them on the left half and half of the pre-processing screen of the head-mounted display respectively. right half screen;

The display unit is used to stretch the 2D image displayed on the left half screen of the pre-processing screen of the head-mounted display to a predetermined ratio and then display it on the left-eye screen of the head-mounted display; The 2D image displayed on the right half of the pre-processing screen of the head-mounted display is stretched by a predetermined ratio and then displayed on the right-eye screen of the head-mounted display.

Optionally, the head-mounted display is a head-mounted display based on an Android system.

As can be seen from the above, the technical solution provided by the present invention, on the one hand, makes the left eye and right eye of the user see the complete 2D image respectively by duplicating the 2D image to be displayed and split-screen display on the left and right eye screens. After cortical synthesis, the user obtains the complete visual information of the 2D image; on the other hand, through the extraction of 2D images from different angles of view of the 3D image to be displayed and the split-screen display on the left and right eye screens, the user's left and right eyes can see the 2D image separately. The left-view 2D image and the right-view 2D image corresponding to the 3D image are synthesized by the visual cortex, and the user obtains complete visual information of the 3D image. The problem in the prior art that 3D images and 2D images cannot be displayed at the same time is solved, so that users can watch 2D images and 3D images completely and normally at the same time, providing users with a more perfect viewing experience.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

FIG. 1 shows a flowchart of a display method for a head-mounted display according to an embodiment of the present invention;

Fig. 2 shows a schematic diagram of image data flow in the process of displaying images of a head-mounted display according to an embodiment of the present invention;

Fig. 3 shows a schematic diagram of a head-mounted display according to an embodiment of the present invention.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary 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 limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Fig. 1 shows a flowchart of a display method for a head-mounted display according to an embodiment of the present invention. As shown in Figure 1, the method includes:

Step S100, start.

Step S110, acquiring a 2D image to be displayed.

In step S120, the 2D image is copied into two copies, which are respectively displayed on the left-eye screen and the right-eye screen of the head-mounted display.

Step S130, acquiring a 3D image to be displayed.

Step S140 , extracting the left-view 2D image and right-view 2D image corresponding to the 3D image, and displaying them on the left-eye screen and the right-eye screen of the head-mounted display respectively.

In this embodiment, the left-eye screen and the right-eye screen of the head-mounted display are completely isolated, the light emitted by the left-eye screen can only enter the user's left eye, and the light emitted by the right-eye screen can only enter the user's right eye. Eyes, the two do not interfere with each other.

It can be seen that, on the one hand, the method shown in Figure 1 makes the user's left eye and right eye respectively see a complete 2D image by duplicating the 2D image to be displayed and split-screen display on the left and right eye screens, which are synthesized by the visual cortex. Afterwards, the user obtains the complete visual information of the 2D image; on the other hand, the method extracts the 2D images from different viewing angles of the 3D image to be displayed and splits the display on the left and right eye screens, so that the user's left eye and right eye can see the 2D image separately. The left-view 2D image and the right-view 2D image corresponding to the 3D image are synthesized by the visual cortex and the user obtains complete visual information of the 3D image. The above solution solves the problem in the prior art that 3D images and 2D images cannot be displayed at the same time, so that users can watch 2D images and 3D images completely and normally at the same time, providing users with a more perfect viewing experience.

In one embodiment of the present invention, step S120 of the method shown in FIG. 1 copies the 2D image into two copies, which are respectively displayed on the left-eye screen and the right-eye screen of the head-mounted display, including:

In step S121, the 2D image is compressed according to a predetermined ratio and then copied into two copies, which are respectively displayed on the left half screen and the right half screen of the preprocessing screen of the head-mounted display.

In this step, the purpose of compressing the 2D image is to make it fit the size of the pre-processing screen.

In step S122, the 2D image displayed on the left half of the pre-processing screen of the head-mounted display is stretched according to a predetermined ratio, and then displayed on the left-eye screen of the head-mounted display.

In step S123, the 2D image displayed on the right half of the pre-processing screen of the head-mounted display is stretched according to a predetermined ratio, and then displayed on the right-eye screen of the head-mounted display.

In the above two steps, the 2D image compressed in the previous step S121 is stretched to ensure that the 2D image viewed by the user complies with the original size and ratio.

Correspondingly, step S140 of the method shown in FIG. 1 extracts a left-view 2D image and a right-view 2D image corresponding to the 3D image, and displays them on the left-eye screen and the right-eye screen of the head-mounted display respectively, including:

In step S141 , the left-view 2D image and the right-view 2D image corresponding to the 3D image are compressed according to a predetermined ratio, and displayed on the left half screen and the right half screen of the pre-processing screen of the head-mounted display respectively.

In this step, the purpose of compressing the left-view 2D image and the right-view 2D image corresponding to the 3D image is to make them fit the size of the pre-processing screen.

In some embodiments of the present invention, the extracted 3D image is a 3D image that has been compressed according to a predetermined ratio, and it is not necessary to perform the compression step as described in step S141, and directly correspond to the compressed 3D image. The left-view 2D image and the right-view 2D image are respectively displayed on the left half screen and the right half screen of the preprocessing screen of the head-mounted display.

In step S142 , the 2D image displayed on the left half of the pre-processing screen of the head-mounted display is stretched according to a predetermined ratio, and then displayed on the left-eye screen of the head-mounted display.

In step S143 , the 2D image displayed on the right half of the pre-processing screen of the head-mounted display is stretched according to a predetermined ratio, and then displayed on the right-eye screen of the head-mounted display.

In the above two steps, the left-view 2D image and the right-view 2D image corresponding to the 3D image compressed in the previous step S141 are stretched to ensure that the 3D image seen by the user conforms to the original size and proportion.

Fig. 2 shows a schematic diagram of the image data flow in the process of displaying images on the head-mounted display according to an embodiment of the present invention, which further illustrates the process of displaying images on the head-mounted display from the perspective of image data transmission and processing , the logical transformation process of image data.

As shown in Figure 2, the image to be displayed 210 is a superposition of a 3D cuboid image and a 2D rhombus image, and the 3D image 220 and the 2D image 230 in the image to be displayed 210 are obtained respectively; The image and the right-view 2D image are both compressed according to a predetermined ratio, and then displayed on the left half screen and the right half screen of the pre-processing screen of the head-mounted display respectively to obtain a 3D pre-processing image 240; after compressing the 2D image 230 according to a predetermined ratio Duplicated into two copies, respectively displayed on the left half screen and the right half screen of the pre-processing screen of the head-mounted display to obtain the 2D pre-processing image 250; the 3D pre-processing image 240 and the 2D pre-processing image 250 are superimposed as the pre-processing screen display image 260; Stretch the image displayed on the left half of the pre-processing screen according to a predetermined ratio and display it on the left-eye screen of the head-mounted display to obtain the image displayed on the left-eye screen 270; stretch the image displayed on the right half of the pre-processing screen The image is stretched according to a predetermined ratio and displayed on the right-eye screen of the head-mounted display to obtain an image 280 displayed on the right-eye screen; the user's left eye sees the image 270 displayed on the left-eye screen, and the user's right eye sees the image 280 displayed on the right-eye screen. Reconstruct the visual perception image, that is, the user perception image 290 .

It can be seen that, based on the display method of the head-mounted display provided by the present invention, the user perceives the image 290 to be the same as the image to be displayed 210, indicating that in the process of displaying the image on the head-mounted display, the image data information is not missing, and the 3D image and the 2D image can be displayed simultaneously. Normal and complete display, in line with the user's viewing needs. In other embodiments of the present invention, no matter if attributes such as the form and position of the 3D image and the 2D image are changed, the logic transformation process of the image data during the display process is the same as this embodiment, and will not be repeated here.

In one embodiment of the present invention, the method shown in FIG. 1 is a display method of a head-mounted display based on the Android system. In this embodiment, the head-mounted display based on the Android system can not only perfectly display 3D images, but also It can perfectly display 2D images, so that the usage scenarios of the head-mounted display based on the Android system are no longer limited to 3D videos and limited 3D applications, but can be extended to all Android applications, such as video, games, social networking, shopping and other application scenarios. It can be displayed normally through the method provided by the present invention, and meets the needs of users.

Fig. 3 shows a schematic diagram of a head-mounted display according to an embodiment of the present invention. As shown in Figure 3, the head-mounted display 300 includes:

The obtaining unit 310 is configured to obtain a 2D image to be displayed.

The preprocessing unit 320 is configured to copy the 2D image into two copies.

The display unit 330 is configured to display the duplicated 2D images on the left-eye screen and the right-eye screen of the head-mounted display 300 respectively.

In one embodiment of the present invention, the preprocessing unit 320 is configured to compress the 2D image according to a predetermined ratio and copy it into two copies, which are displayed on the left half screen and the preprocessing screen of the head-mounted display 300 respectively. Right half screen. The display unit 330 is used to stretch the 2D image displayed on the left half screen of the pre-processing screen of the head-mounted display 300 according to a predetermined ratio and then display it on the left-eye screen of the head-mounted display 300; The 2D image displayed on the right half of the pre-processed screen of the display 300 is stretched according to a predetermined ratio and then displayed on the right eye screen of the head-mounted display 300 .

In one embodiment of the present invention, the acquiring unit 310 is further configured to acquire a 3D image to be displayed; the preprocessing unit 320 is further configured to extract a left-view 2D image and a right-view 2D image corresponding to the 3D image; the display unit 330 , which is further used to display the left-view 2D image and the right-view 2D image corresponding to the 3D image on the left-eye screen and the right-eye screen of the head-mounted display 300 respectively.

In one embodiment of the present invention, the pre-processing unit 320 is configured to compress the left-view 2D image and the right-view 2D image corresponding to the 3D image according to a predetermined ratio, and display them on the left half of the pre-processing screen of the head-mounted display 300 respectively. screen and the right half screen; the display unit 330 is used to stretch the 2D image displayed on the left half screen of the pre-processing screen of the head-mounted display 300 according to a predetermined ratio and display it on the left-eye screen of the head-mounted display 300; and The 2D image displayed on the right half of the pre-processed screen of the head-mounted display 300 is stretched according to a predetermined ratio and then displayed on the right-eye screen of the head-mounted display 300 .

In one embodiment of the present invention, the head-mounted display 300 is a head-mounted display based on the Android system.

The head-mounted display shown in FIG. 3 has been specifically embodied in the above embodiments of the display method for the head-mounted display, and will not be repeated here.

To sum up, the technical solution provided by the present invention, on the one hand, makes the left eye and right eye of the user see the complete 2D image respectively by duplicating the 2D image to be displayed and split-screen display on the left and right eye screens. After the visual cortex is synthesized, the user obtains the complete visual information of the 2D image; on the other hand, through the extraction of 2D images from different angles of view of the 3D image to be displayed and the split-screen display on the left and right eye screens, the user's left and right eyes can see the 2D image separately. The left-view 2D image and the right-view 2D image corresponding to the 3D image are synthesized by the visual cortex and the user obtains complete visual information of the 3D image. The problem in the prior art that 3D images and 2D images cannot be displayed at the same time is solved, so that users can watch 2D images and 3D images completely and normally at the same time, providing users with a more perfect viewing experience.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (8)

1. a kind of display methods of head mounted display, it is characterised in that this method includes：

Obtain 2D images to be shown；

The 2D images are copied as two parts, the left eye screen and right eye screen of the head mounted display is respectively displayed on；

Obtain 3D images to be shown；

The corresponding LOOK LEFT 2D images of the 3D images and LOOK RIGHT 2D images are extracted, the head-mounted display is respectively displayed on Left eye screen and right eye screen；

The 2D images and the 3D images are from same image to be shown.

2. the method as described in claim 1, it is characterised in that described that the 2D images are copied as into two parts, is respectively displayed on The left eye screen and right eye screen of the head mounted display include：

Two parts are copied as after the 2D images are compressed according to predetermined ratio, the pre- place of the head mounted display is respectively displayed on Manage the left half screen and right half screen of screen；

Show after 2D images shown by the left half screen of the pretreatment screen of the head mounted display are stretched according to predetermined ratio Show the left eye screen in the head mounted display；

After after 2D images shown by the right half screen of the pretreatment screen of the head mounted display are stretched according to predetermined ratio It is shown in the right eye screen of the head mounted display.

3. the method as described in claim 1, it is characterised in that described to extract the corresponding LOOK LEFT 2D images of the 3D images With LOOK RIGHT 2D images, being respectively displayed on the left eye screen and right eye screen of the head-mounted display includes：

After the corresponding LOOK LEFT 2D images of the 3D images and LOOK RIGHT 2D images that extract are compressed according to predetermined ratio, It is respectively displayed on the left half screen and right half screen of the pretreatment screen of the head mounted display；

Show after 2D images shown by the left half screen of the pretreatment screen of the head mounted display are stretched according to predetermined ratio Show the left eye screen in the head mounted display；

Show after 2D images shown by the right half screen of the pretreatment screen of the head mounted display are stretched according to predetermined ratio Show the right eye screen in the head mounted display.

4. the method as any one of claim 1-3, it is characterised in that this method is the head based on android system The display methods of head mounted displays.

5. a kind of head mounted display, it is characterised in that the head mounted display includes：

Acquiring unit, the 2D image to be shown for obtaining；

Pretreatment unit, for the 2D images to be copied as into two parts；

Display unit, the left eye screen for the 2D images for copying as two parts to be respectively displayed on to the head mounted display With right eye screen；

The acquiring unit, is further used for obtaining 3D images to be shown；

The pretreatment unit, is further used for extracting the corresponding LOOK LEFT 2D images of the 3D images and LOOK RIGHT 2D shadows Picture；

The display unit, is further used for respectively showing the corresponding LOOK LEFT 2D images of the 3D images and LOOK RIGHT 2D images Show the left eye screen and right eye screen in the head-mounted display；

The 2D images and the 3D images are from same image to be shown.

6. head mounted display as claimed in claim 5, it is characterised in that

The pretreatment unit, for copying as two parts after the 2D images are compressed according to predetermined ratio, is respectively displayed on institute State the left half screen and right half screen of the pretreatment screen of head mounted display；

The display unit, for by the head mounted display pretreatment screen left half screen shown by 2D images according to The left eye screen of the head mounted display is shown in after predetermined ratio stretching；And for by the pre- of the head mounted display Handle the right eye that the head mounted display is shown in after the 2D images shown by the right half screen of screen are stretched according to predetermined ratio Screen.

7. head mounted display as claimed in claim 5, it is characterised in that

The pretreatment unit, the corresponding LOOK LEFT 2D images of the 3D images and LOOK RIGHT 2D images for that will extract is equal After being compressed according to predetermined ratio, the left half screen and right half screen of the pretreatment screen of the head mounted display are respectively displayed on；

The display unit, for by the head mounted display pretreatment screen left half screen shown by 2D images according to The left eye screen of the head mounted display is shown in after predetermined ratio stretching；And for by the pre- of the head mounted display Handle the right eye that the head mounted display is shown in after the 2D images shown by the right half screen of screen are stretched according to predetermined ratio Screen.

8. the head mounted display as any one of claim 5-7, it is characterised in that the head mounted display be based on The head mounted display of android system.