CN104038697B - A kind of mobile terminal realizes the method and mobile terminal that more people take pictures - Google Patents

Abstract

The present invention is applicable to the technical field of mobile terminals, and provides a method for a mobile terminal to realize multi-person photography and the mobile terminal, including: when receiving a photographing request message, starting a camera, and obtaining an initial image through the camera; when the initial When the face range in the image exceeds the preset range, control the camera to rotate in the direction where the face range in the initial image exceeds the preset range, and obtain at least one set of superimposed images through the camera ; Stitching the initial image and the at least one set of superimposed images to generate a composite image and saving it. The present invention obtains at least one set of superimposed images by controlling the rotation of the camera toward the direction where the range of the face in the initial image exceeds the preset range, and then stitches the initial image and at least one set of superimposed images to generate a composite image, thereby through the mobile terminal It realizes taking pictures by multiple people, and greatly reduces the operational difficulty of taking pictures by multiple people on the mobile terminal.

Description

Method and mobile terminal for realizing multi-person photographing by mobile terminal

technical field

The invention belongs to the technical field of mobile terminals, and in particular relates to a method for a mobile terminal to realize multiple people taking pictures and the mobile terminal.

Background technique

When the existing mobile terminal realizes that multiple people take pictures, it is difficult to capture the faces of multiple people into the picture. In order to realize multiple people taking pictures, the mobile terminal needs to be placed at a relatively far position, which makes the operation difficult.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a method for a mobile terminal to take pictures of multiple people, so as to reduce the operational difficulty of taking pictures of multiple people on the mobile terminal.

The embodiment of the present invention is implemented in this way, a method for a mobile terminal to realize multiple people taking pictures, comprising:

When receiving the photographing request information, start the camera, and obtain the initial image through the camera;

When the face range in the initial image exceeds the preset range, control the camera to rotate in the direction where the face range in the initial image exceeds the preset range, and acquire at least a set of superimposed images;

Stitching the initial image and the at least one set of superimposed images to generate a composite image and saving it.

Another object of the embodiments of the present invention is to provide a mobile terminal, including:

The initial image acquisition module is used to start the camera and acquire the initial image through the camera when receiving the photographing request information;

A superimposed image acquisition module, configured to control the camera to rotate in a direction in which the range of the face in the initial image exceeds the preset range when the range of the face in the initial image exceeds the preset range, And acquire at least one set of superimposed images through the camera;

An image splicing module, configured to splice the initial image and the at least one set of superimposed images to generate a composite image and save it.

Compared with the prior art, the embodiment of the present invention has the following beneficial effects: the embodiment of the present invention obtains the initial image when receiving a photographing request, and controls the camera to move toward the initial image when the face range in the initial image exceeds the preset range. The face range in the image is rotated in the direction of the excess part beyond the preset range, at least one set of superimposed images is acquired, and then the initial image is stitched with at least one set of superimposed images to generate a composite image, thereby realizing multiple people to take pictures through the mobile terminal, and It greatly reduces the operation difficulty of the mobile terminal to realize multiple people taking pictures.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

FIG. 1 is an implementation flowchart of a method for a mobile terminal to realize multi-person photography provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the range of faces in the initial image exceeding the preset range in the method for the mobile terminal to realize multi-person photography;

FIG. 3 is a specific implementation flow chart of step S101 of a method for realizing multi-person photography by a mobile terminal provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of step S303 of a method for realizing multi-person photographing by a mobile terminal according to an embodiment of the present invention;

FIG. 5 shows a specific implementation flow chart of step S102 of a method for taking pictures by a mobile terminal provided by an embodiment of the present invention;

FIG. 6 shows a schematic diagram of acquiring at least one group of superimposed images in step S502 of a method for taking pictures by a mobile terminal provided by an embodiment of the present invention;

Fig. 7 shows a structural block diagram of a mobile terminal provided by an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the embodiment of the present invention, the initial image is obtained when a photographing request is received, and when the range of the face in the initial image exceeds the preset range, the camera is controlled to rotate in a direction in which the range of the face in the initial image exceeds the preset range , acquiring at least one set of superimposed images, and then splicing the initial image and at least one set of superimposed images to generate a composite image, thereby realizing multi-person photographing through the mobile terminal, and greatly reducing the operation difficulty of multi-person photographing by the mobile terminal.

The mobile terminal in the embodiment of the present invention can comprise mobile phone (or be referred to as " cellular " phone) and the computer that has mobile terminal, for example, can be portable, pocket type, hand-held, computer built-in or vehicle-mounted mobile device, they Exchanging language and/or data with the radio access network. For example, Personal Communication Service (PCS) phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) and other equipment are not limited here.

Fig. 1 shows the flow chart of the implementation of the method for the mobile terminal to realize multi-person photography provided by the embodiment of the present invention, which is described in detail as follows:

In step S101, when receiving the photographing request information, start the camera, and acquire an initial image through the camera.

In the embodiment of the present invention, after receiving the photographing request information input by the user, the mobile terminal starts the camera. The mobile terminal receives the photographing request information input by the user, which can be the photographing request information sent by the user through a preset button or a combination of buttons or a combination of buttons in the existing buttons on the mobile terminal; or, receiving the photographing request information sent by the user through the touch screen of the mobile terminal photo request information (for example, slide counterclockwise twice). After receiving the photographing request information input by the user, the mobile terminal acquires an initial image through the camera, and saves the initial image to prepare for subsequent image splicing.

Further, when the photographing request information is received in step S101, the camera is started, and after the initial image is acquired by the camera, the method further includes:

Extracting the face information in the initial image, and analyzing the face range in the initial image according to the face information.

Wherein, the face information includes but not limited to face outline, eyes, nose, mouth, ears or skin color information. According to the above information, the face range in the initial image can be analyzed. Optionally, when the mobile terminal recognizes a human face, focus is performed.

In step S102, when the face range in the initial image exceeds the preset range, control the camera to rotate in the direction where the face range in the initial image exceeds the preset range, and pass The camera captures at least one set of superimposed images.

Fig. 2 shows a schematic diagram of a method in which a mobile terminal realizes taking photos of multiple people, and the range of human faces in an initial image exceeds a preset range. Referring to FIG. 2 , the black thick solid line box is the screen of the mobile terminal, which indicates the range that the camera can shoot; the dotted line indicates the preset range. When the face range in the initial image exceeds the preset range, the camera is controlled to rotate in a direction where the face range in the initial image exceeds the preset range. For example, in Figure 2, the upper left, lower, and upper right of the face range in the initial image exceed the preset range, then control the camera to rotate toward the upper left, lower, and upper right to obtain three sets of superimposed images, and save the superimposed images , to prepare for the subsequent image stitching. Take the camera rotates to the upper left to obtain the first set of superimposed images as an example: when the camera rotates to the upper left, N superimposed images are obtained to ensure a smooth transition between the initial image and the superimposed image. Wherein, N is a positive integer. The N superimposed images form the first group of superimposed images, and the N superimposed images include the excess portion of the face in the initial image beyond the preset range. When acquiring the first set of superimposed images, if the preset range of the currently acquired superimposed images includes the upper leftmost picture of the excess part, it is determined that the currently acquired superimposed images are the last superimposed images of the first group of superimposed images , that is, the acquisition of the first group of superimposed images is completed, and the camera returns to the initial position.

It should be noted that the range of the screen of the mobile terminal can also be used as the preset range. When the range of the face in the initial image exceeds the range of the screen of the mobile terminal, the camera is controlled to move toward the range of the face in the initial image beyond the range of the screen of the mobile terminal. Rotate in the direction of the excess portion.

In step S103, the initial image and the at least one set of superimposed images are spliced to generate a composite image and saved.

Here, stitching the initial image with at least one set of superimposed images includes overlapping the overlapping portion of the superimposed image with the original image, and stitching the excess portion included in the superimposed image but not included in the original image with the initial image.

FIG. 3 shows a specific implementation flow chart of step S101 of the method for realizing multi-person photographing by a mobile terminal provided by an embodiment of the present invention. With reference to Fig. 3, described in step S101 when receiving photographing request information, start camera, obtain initial image by described camera and include:

In step S301, when receiving the photographing request information, the camera is started, and an image including a human face is acquired through the camera.

As an embodiment of the present invention, when the mobile terminal receives the photographing request information input by the user, the mobile terminal starts the camera, and judges whether the picture currently taken by the camera contains a human face, and if the picture currently taken by the camera contains a human face, then pass The camera captures an image containing a human face.

Preferably, the method also includes:

The image containing the human face is displayed in real time through the screen of the mobile terminal.

As an embodiment of the present invention, after the mobile terminal activates the camera function, the screen of the mobile terminal can display the pictures taken by the camera in real time, so that the user can send a photo request message when the picture taken by the camera is appropriate, so as to obtain a picture with higher quality. An image containing a human face. The picture quality here includes two meanings. One is that the picture captured by the camera includes the main picture that the user wants to shoot, and the other is that the picture is clear.

In step S302, it is judged whether the face range of the specified position in the image containing the face exceeds the preset range.

Here, the preset range in the image containing the human face is consistent with the preset range in the initial image.

Optionally, the specified position is the upper left corner, upper right corner, lower left corner or lower right corner of the image containing the human face, which is not limited herein. In the embodiment of the present invention, the specified position is the upper left corner of the image containing the human face as an example for illustration.

FIG. 4 shows a schematic diagram of step S303 of a method for taking pictures by a mobile terminal provided by an embodiment of the present invention. Referring to FIG. 4:

In step S303, if the range of the human face at the specified position in the image containing the human face exceeds the preset range, control the rotation of the camera until the range of the human face at the specified position in the image containing the human face exceeds the preset range. When the preset range is exceeded, the initial image is acquired through the camera.

In the embodiment of the present invention, the designated position is the upper left corner of the image containing the human face. The upper picture in Figure 4 is an image containing a human face. From the upper picture in Figure 4, it can be seen that the range of the face in the upper left corner of the image containing a human face exceeds the preset range, so the camera is controlled to rotate to the upper left until it contains The range of the face in the upper left corner of the face image does not exceed the preset range, as shown in the lower figure in FIG. 4 . When the range of the face in the upper left corner of the image containing the face does not exceed the preset range, the initial image is obtained through the camera, that is, the lower image in Figure 4 can be used as the initial image.

In step S304, if the face range of the specified position in the image containing a human face does not exceed the preset range, the image containing a human face is used as the initial image.

In this embodiment, when the range of the human face in the upper left corner of the image containing the human face does not exceed the preset range, the image containing the human face is used as the initial image.

Through this embodiment, the number of times the subsequent rotating camera acquires superimposed images can be reduced, and the amount of data processing can be reduced. Referring to Figure 4, if the upper image in Figure 4 is used as the initial image, then the camera needs to be controlled to rotate in three directions: upper left, lower, and upper right to obtain three groups of superimposed images corresponding to the three directions; The following image in 4 is used as the initial image, then you only need to control the camera to rotate to the right and the bottom right to obtain two sets of superimposed images corresponding to the two directions.

FIG. 5 shows a specific implementation flow chart of step S102 of the method for realizing multi-person photography by a mobile terminal provided by an embodiment of the present invention. Referring to FIG. 5:

Further, in step S102, when the face range in the initial image exceeds the preset range, the camera is controlled to rotate in a direction in which the face range in the initial image exceeds the preset range, And obtain at least one set of superimposed images through the camera, specifically:

In step S501, when the range of the human face in the initial image exceeds the preset range, analyze the position of the excess part of the range of the human face in the initial image beyond the preset range;

In step S502, according to the position of the excess part, the camera is controlled to rotate toward the direction of the excess part, and during the rotation of the camera, at least one group of superimposed images is acquired at a preset frequency until the After the exceeding part is included in the preset range of the superimposed image, the rotation of the camera is stopped.

In this embodiment, assuming that the initial image is as shown in Figure 2, the face range in the initial image exceeds the preset range, and the position of the excess part of the face range in the initial image beyond the preset range is analyzed, and the position of the excess part can be known Includes top left, bottom, and top right. Assume that when the camera acquires the initial image, its position is the initial position.

The first step is to control the camera to rotate from the initial position to the upper left, and acquire the first set of superimposed images at a preset frequency. If the preset range of the currently acquired superimposed images includes the upper leftmost picture beyond the part, it is determined that the current The acquired superimposed image is the last superimposed image of the first group of superimposed images, that is, the acquisition of the first group of superimposed images is completed, and the excess part on the upper left is completely included in the preset range of the first group of superimposed images. The upper figure in FIG. 6 shows a schematic diagram of the last superimposed image of the first group of superimposed images. After the acquisition of the first group of superimposed images is completed, the camera is returned to the initial position.

The second step is to control the camera to rotate downward from the initial position, and acquire the second set of superimposed images at a preset frequency. The superimposed image is the last superimposed image of the second group of superimposed images, that is, the acquisition of the second group of superimposed images is completed, and the excess part below is all included in the preset range of the second group of superimposed images. The middle figure in FIG. 6 shows a schematic diagram of the last superimposed image of the second group of superimposed images. After the acquisition of the second group of superimposed images is completed, the camera is returned to the initial position.

The third step is to control the camera to rotate from the initial position to the upper right, and acquire the third group of superimposed images at the preset frequency. The acquired superimposed image is the last superimposed image of the third group of superimposed images, that is, the acquisition of the third group of superimposed images is completed, and the excess part on the upper right is completely included in the preset range of the third group of superimposed images. The lower figure in FIG. 6 shows a schematic diagram of the last superimposed image of the third group of superimposed images. After the acquisition of the third group of superimposed images is completed, the camera can be returned to the initial position.

After the above three steps, all excess parts are included in the superimposed image, then stop rotating the camera, and the superimposed image acquisition is completed.

In the embodiment of the present invention, the initial image is obtained when a photographing request is received, and when the range of the face in the initial image exceeds the preset range, the camera is controlled to rotate in a direction in which the range of the face in the initial image exceeds the preset range , acquiring at least one set of superimposed images, and then splicing the initial image and at least one set of superimposed images to generate a composite image, thereby realizing multi-person photographing through the mobile terminal, and greatly reducing the operation difficulty of multi-person photographing by the mobile terminal.

FIG. 7 shows a structural block diagram of a mobile terminal provided by an embodiment of the present invention, and the mobile terminal can be used to run the method described in FIGS. 1 to 6 on the mobile terminal to realize multi-person photography. For ease of description, only the parts related to this embodiment are shown.

Referring to Figure 7, the mobile terminal includes:

The initial image acquisition module 71, when receiving the photographing request information, activates the camera, and acquires the initial image through the camera.

The superimposed image acquisition module 72, when the range of the face in the initial image exceeds the preset range, controls the camera to rotate in the direction in which the range of the face in the initial image exceeds the preset range, and At least one set of superimposed images is acquired through the camera.

The image splicing module 73 splices the initial image and the at least one set of superimposed images to generate a composite image and saves it.

Further, the mobile terminal further includes:

The human face range analysis module extracts the human face information in the initial image, and analyzes the human face range in the initial image according to the human face information.

Preferably, the initial image acquisition module 71 includes:

The image acquisition sub-module comprising a human face, when receiving the photographing request information, starts the camera, and collects an image comprising a human face through the camera;

The submodule for judging the face range at the specified position determines whether the face range at the specified position in the image containing the face exceeds the preset range;

The first initial image acquisition submodule, if the range of the face at the specified position in the image containing the human face exceeds the preset range, then control the rotation of the camera until the person at the specified position in the image containing the human face When the face range does not exceed the preset range, then obtain the initial image through the camera;

The second initial image acquisition sub-module is to use the image containing a human face as the initial image if the range of the human face at a specified position in the image containing a human face does not exceed the preset range.

Preferably, the mobile terminal further includes:

The image display module containing human face is used to display the image containing human face in real time through the screen of the mobile terminal.

Further, the superimposed image acquisition module is specifically used for:

When the range of the human face in the initial image exceeds the preset range, analyze the position of the excess part of the range of the human face in the initial image beyond the preset range;

According to the position of the excess part, control the camera to rotate towards the direction of the excess part, and during the rotation of the camera, acquire at least one set of superimposed images at a preset frequency until the excess part is included in the After being within the preset range of the superimposed image, stop rotating the camera.

In the embodiment of the present invention, the initial image is obtained when a photographing request is received, and when the range of the face in the initial image exceeds the preset range, the camera is controlled to rotate in a direction in which the range of the face in the initial image exceeds the preset range , acquiring at least one set of superimposed images, and then splicing the initial image and at least one set of superimposed images to generate a composite image, thereby realizing multi-person photographing through the mobile terminal, and greatly reducing the operation difficulty of multi-person photographing by the mobile terminal.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. a kind of mobile terminal realizes the method that more people take pictures, it is characterised in that including：

Receive it is input by user take pictures solicited message when, start camera, pass through the camera obtain initial pictures；

When the face scope in the initial pictures exceeds preset range, the camera is controlled towards in the initial pictures Face scope is rotated beyond the preset range beyond the direction of part, and obtains at least one set of superposition by the camera Image；

By the initial pictures and at least one set of superimposed image splicing generation composograph and preserve；It is described will be described initial Image and at least one set of superimposed image splicing include, the part weight that the superimposed image and the initial pictures are repeated It is folded, by the superimposed image includes and what the initial pictures did not included splice beyond part and the initial pictures；

It is described receive it is input by user take pictures solicited message when, start camera, pass through the camera obtain initial graph As including：

Receive it is input by user take pictures solicited message when, start camera, judge the picture of the camera current shooting Whether face is included, if the picture of the camera current shooting includes face, face is included by camera collection Image；

Judge whether the face scope of designated position in the image comprising face exceeds the preset range, wherein, it is described The upper left corner, the upper right corner, the lower left corner or the lower right corner of designated position image comprising face for described in；

If the face scope of designated position exceeds the preset range in the image comprising face, the camera is controlled Rotation, until it is described comprising the image of face in designated position face scope without departing from the preset range when, then pass through institute State camera and obtain the initial pictures；

If the face scope of designated position includes people without departing from the preset range by described in the image comprising face The image of face is as the initial pictures.

2. the method as described in claim 1, it is characterised in that receiving solicited message input by user of taking pictures described When, start camera, after obtaining initial pictures by the camera, further include：

The face information in the initial pictures is extracted, the face model in the initial pictures is analyzed according to the face information Enclose.

3. the method as described in claim 1, it is characterised in that the method further includes：

By the image that face is included described in the screen real-time exhibition of the mobile terminal.

4. such as claims 1 to 3 any one of them method, it is characterised in that the face model worked as in the initial pictures Enclose when exceeding preset range, control the camera towards the face scope in the initial pictures beyond the super of the preset range The direction for going out part rotates, and obtains at least one set of superimposed image by the camera and be specially：

When the face scope in the initial pictures exceeds preset range, the face scope analyzed in the initial pictures exceeds The preset range beyond the position of part；

According to described beyond the position of part, the camera is controlled to be rotated towards the direction beyond part, and taken the photograph described During picture is rotating, at least one set of superimposed image is obtained with predeterminated frequency, until described described folded beyond being partially contained in After adding in the preset range of image, then the camera that stops rotating.

A kind of 5. mobile terminal, it is characterised in that including：

Initial pictures acquisition module, for receive it is input by user take pictures solicited message when, start camera, by described Camera obtains initial pictures；

Superimposed image acquisition module, for when the face scope in the initial pictures exceeds preset range, being taken the photograph described in control As head being rotated beyond the direction of part towards the face scope in the initial pictures beyond the preset range, and by described Camera obtains at least one set of superimposed image；

Image mosaic module, for the initial pictures and at least one set of superimposed image splicing to be generated composograph and are protected Deposit；It is described to include the initial pictures with least one set of superimposed image splicing, by the superimposed image with it is described initial What image repeated partly overlaps, by the superimposed image includes and the initial pictures do not include beyond part with it is described initial Image mosaic；

The initial pictures acquisition module includes：

Image Acquisition submodule comprising face, for receive it is input by user take pictures solicited message when, start camera, Judge whether the picture of the camera current shooting includes face, if the picture of the camera current shooting includes face, The image of face is then included by camera collection；

Designated position face scope judging submodule, for judging the face scope of designated position in the image comprising face Whether the preset range is exceeded, wherein, the upper left corner, the upper right corner, the left side of designated position image comprising face for described in Inferior horn or the lower right corner；

First initial pictures acquisition submodule, if the face scope for designated position in the image comprising face exceeds institute State preset range, then control the camera to rotate, until it is described comprising the image of face in designated position face scope not During beyond the preset range, then pass through the camera acquisition initial pictures；

Second initial pictures acquisition submodule, if for designated position in the image comprising face face scope without departing from The preset range, then using the image comprising face as the initial pictures.

6. mobile terminal as claimed in claim 5, it is characterised in that the mobile terminal further includes：

Face surface analysis module, for extracting the face information in the initial pictures, institute is analyzed according to the face information State the face scope in initial pictures.

7. mobile terminal as claimed in claim 5, it is characterised in that the mobile terminal further includes：

Image shows module comprising face, for including the figure of face described in the screen real-time exhibition by the mobile terminal Picture.

8. such as claim 5 to 7 any one of them mobile terminal, it is characterised in that the superimposed image acquisition module is specific For：

When the face scope in the initial pictures exceeds preset range, the face scope analyzed in the initial pictures exceeds The preset range beyond the position of part；

According to described beyond the position of part, the camera is controlled to be rotated towards the direction beyond part, and taken the photograph described During picture is rotating, at least one set of superimposed image is obtained with predeterminated frequency, until described described folded beyond being partially contained in After adding in the preset range of image, then the camera that stops rotating.