CN114786061B - Picture visual angle correction method based on VR equipment - Google Patents
Picture visual angle correction method based on VR equipment Download PDFInfo
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- CN114786061B CN114786061B CN202210377659.3A CN202210377659A CN114786061B CN 114786061 B CN114786061 B CN 114786061B CN 202210377659 A CN202210377659 A CN 202210377659A CN 114786061 B CN114786061 B CN 114786061B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44012—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a picture visual angle correction method based on VR equipment. The method specifically comprises the following steps: (1) The user watching terminal is used for playing VR video content and recording the angle when the user starts watching video, the angle moved by the user in video watching and the angle finally outputted by the first video user; (2) The guide terminal is used for carrying out VR video output, switching and rendering loading guide standards; (3) The data processing center is used for recording the angle when the user starts to watch, the angle changed by the user when watching the video, and the angle comparison is carried out when switching the video to judge whether the guidance and the guidance angle calculation are needed or not. The beneficial effects of the invention are as follows: the method can effectively improve the sense of body of the user when watching the VR video, and realize that the VR video task is played in a guiding and broadcasting mode.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a picture visual angle correction method based on VR equipment.
Background
The common video takes the central point as a focus, photographers consider the central point as a content which needs to be focused by audiences, the current VR technology is a free view player, the audiences can watch at any angle in the VR sphere, and when the VR video is switched, the audiences lose the focus of the content due to the problem of the view angle, and the content focused by the audiences needed by the VR camera is omitted.
At present, most of VR video playing terminals are based on head-mounted equipment and players, users change video viewing angles by using interaction directions of gyroscopes or players in the head-mounted equipment, default video switching is performed to VR video main frames, and video switching is performed in a very stiff mode.
When VR video is switched, the angle of the last video where the user using the headset is located cannot be changed, and the user watching the video after the switching has poor sense of body.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a picture visual angle correction method based on VR equipment, wherein video switching is smooth.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a picture visual angle correction method based on VR equipment specifically comprises the following steps:
(1) The user watching terminal is used for playing VR video content and recording the angle when the user starts watching video, the moving angle of the user in video watching and the last angle of the first video user;
(2) The guide terminal is used for carrying out VR video output, switching and rendering loading guide standards;
(3) The data processing center is used for recording the angle when the user starts to watch, the angle changed by the user when watching the video, and the angle comparison is carried out when switching the video to judge whether the guidance and the guidance angle calculation are needed or not.
The invention mainly aims at overcoming the defects of the prior art and providing a picture visual angle correction method based on VR equipment, which comprises a user watching terminal, a guide broadcasting terminal and a data processing center, wherein video switching is smoother, so that the sense of the user watching VR video can be effectively improved, and VR video tasks can be played in a guide broadcasting mode.
Preferably, in step (1), specifically: when a user starts to watch, recording real-time pictures and positions of the user as VR video main picture playing areas, transmitting the pictures and positions to a data processing center to be positioned as anchor points, and transmitting the changed angles to the data processing center in real time when the user changes the watching angles.
Preferably, in step (2), specifically: the guiding terminal plays, switches and guides the rendering of the output content, after the data processing center transmits the processed data processing to the guiding terminal, the guiding terminal analyzes the processed data processing and renders the video content, and the guiding and informing the user of the direction of the main picture is convenient for the user to watch.
Preferably, in the step (3), the specific method for judging guidance is as follows:
(31) Simplifying the VR video playing range into a standard circle with the radius of 1, wherein the point where the user is located is the center of a circle, namely (0, 0);
(32) When a user starts watching a video for the first time, the direction in which the user is located is the main picture of the video, and at the moment, the picture is a set of coordinate points of a certain part on a spherical surface, and the set is used as an anchor point;
(33) No matter how the angle of the user is adjusted, the picture is still in the sphere, when the video is finished, the picture at the last place of the user is recorded, and at the moment, a coordinate point set is generated on the picture, the intersection processing is carried out on the picture and the anchor point set, when the intersection data is more than 50% of the total of the anchor point data, the guidance is not carried out, and when the intersection data is less than 50% of the total of the anchor point data, the guidance is carried out.
Preferably, in step (3), the specific guiding method is as follows:
(a) Calculate the viewing angle of the user back to the beginning: guiding when the intersection data is less than 50% of the sum of anchor point data, wherein the center of the angle of the picture where the user is located and the coordinate point from a certain coordinate point to the anchor point center can be connected into a line on the spherical surface;
(b) Video processing appearance guidance: processing the coordinates of the line, and guiding the user to return to the main picture in the form of an arrow;
(c) User adjustment: and after the angle of the user is unchanged, wherein the angle refers to a range, and when the angle is smaller than the range, the angle is regarded as unchanged, the angle picture where the user is positioned is produced into a coordinate set, and intersection processing is carried out to judge whether the angle picture is in a main picture area or not.
Preferably, in step (3), specifically: the data processing center transmits the angle of the picture when the user starts to watch to the data processing center, and the angle is positioned as the main picture direction of VR video watching; and recording the angle of the user after the current video is finished and comparing the angle with the angle of the main picture, and transmitting the processed data to the broadcasting guide terminal if the current main picture is not in the angle of the user.
Preferably, in step (3), when the user changes the angle, the angle is compared with the angle of the main screen again, if the main screen appears within the angle of view of the user and no guidance prompt appears, the guidance also disappears when the angle is not entered into the main screen area after the angle is detected for 10 seconds.
The beneficial effects of the invention are as follows: the method can effectively improve the sense of body of the user when watching the VR video, and realize that the VR video task is played in a guiding and broadcasting mode.
Drawings
Fig. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In the embodiment as described in fig. 1, a picture viewing angle correction method based on VR device specifically includes the following steps:
(1) The user watching terminal is used for playing VR video content and recording the angle when the user starts watching video, the moving angle of the user in video watching and the last angle of the first video user; the method comprises the following steps: when a user starts to watch, recording real-time pictures and positions of the user as VR video main picture playing areas, transmitting the pictures and positions to a data processing center to be positioned as anchor points, and when the user changes the watching angle, transmitting the changed angle to the data processing center in real time; the aim of aiming at the last angle of the first video user is to: the last angle of the user in the previous video can be obtained and compared with the angle of the user when the user just starts to watch, so that whether the result needs to be guided or not is obtained.
(2) The guide terminal is used for carrying out VR video output, switching and rendering loading guide standards; the method comprises the following steps: the guiding terminal plays, switches and guides the rendering of the output content, after the data processing center transmits the processed data processing to the guiding terminal, the guiding terminal analyzes the processed data processing and renders the video content, and the guiding and informing the user of the direction of the main picture is convenient for the user to watch; wherein the guidance criteria refer to: judging whether guiding is needed or not, and enabling a user to return to a main picture area; if the deviation is too large, guidance may occur, and if the deviation is within the standard range, guidance is not necessary.
(3) The data processing center is used for recording the angle when the user starts to watch, the angle changed by the user when watching the video, and comparing the angles when switching the video to judge whether the guiding and the guiding angle calculation are needed or not; when the angle of the user and the angle deviation of the main picture exceed the standard range, an arrow or a path appears on the picture of the user, and the user is guided to the main picture area. The method comprises the following steps: the data processing center transmits the angle of the picture when the user starts to watch to the data processing center, and the angle is positioned as the main picture direction of VR video watching; recording the angle of the user after the current video is finished and comparing the angle with the angle of the main picture, and transmitting the processed data to the broadcasting guide terminal if the current main picture is not in the angle of the user; when the angle of the user is changed, the angle of the user is compared with the angle of the main picture again, if the main picture is within the angle of view of the user, no guiding prompt appears, and when the angle is detected to be 10 seconds later, the angle does not enter the main picture area, and the guiding also disappears.
The specific method for judging the guidance is as follows:
(31) Simplifying the VR video playing range into a standard circle with the radius of 1, wherein the point where the user is located is the center of a circle, namely (0, 0);
(32) When a user starts watching a video for the first time, the direction in which the user is located is the main picture of the video, and at the moment, the picture is a set of coordinate points of a certain part on a spherical surface, and the set is used as an anchor point;
(33) No matter how the angle of the user is adjusted, the picture is still in the sphere, when the video is finished, the picture at the last place of the user is recorded, and at the moment, a coordinate point set is generated on the picture, the intersection processing is carried out on the picture and the anchor point set, when the intersection data is more than 50% of the total of the anchor point data, the guidance is not carried out, and when the intersection data is less than 50% of the total of the anchor point data, the guidance is carried out.
The specific guiding method is as follows:
(a) Calculate the viewing angle of the user back to the beginning: guiding when the intersection data is less than 50% of the sum of anchor point data, wherein the center of the angle of the picture where the user is located and the coordinate point from a certain coordinate point to the anchor point center can be connected into a line on the spherical surface;
(b) Video processing appearance guidance: processing the coordinates of the line, and guiding the user to return to the main picture in the form of an arrow;
(c) User adjustment: and after the angle of the user is unchanged, wherein the angle refers to a range, and when the angle is smaller than the range, the angle is regarded as unchanged, the angle picture where the user is positioned is produced into a coordinate set, and intersection processing is carried out to judge whether the angle picture is in a main picture area or not.
The invention aims to overcome the defects of the prior art and provide a picture visual angle correction method based on VR equipment, which comprises a user watching terminal, a broadcasting guiding terminal and a data processing center; the user watching terminal is used for playing VR video content and recording the angle when the user starts watching video, the angle moved by the user in video watching and the angle finally outputted by the first video user; the terminal guide is used for carrying out VR video output, switching and rendering loading guide standards; the data processing center is used for recording the angle when the user starts to watch, the angle changed by the user when watching the video, and comparing the angles when switching the video to judge whether the guiding and the guiding angle calculation are needed or not; therefore, the sense of the user watching the VR video is effectively improved, and the VR video task is played in a guiding and broadcasting mode.
Claims (5)
1. A picture visual angle correction method based on VR equipment is characterized by comprising the following steps:
(1) The user watching terminal is used for playing VR video content, and the angle when the user starts watching the video, the angle moved by the user in video watching and the last angle of the first video user are recorded;
(2) The guiding terminal is used for carrying out VR video output, switching and rendering loading guiding standards;
(3) The data processing center is used for recording the angle when the user starts to watch, the angle changed by the user when watching the video, and the angle comparison is carried out when switching the video to judge whether the guidance and the angle calculation of the guidance are needed or not; the specific method for judging the guidance is as follows:
(31) Simplifying the VR video playing range into a standard circle with the radius of 1, wherein the point where the user is located is the center of a circle, namely (0, 0);
(32) When a user starts watching a video for the first time, the direction of the user is the main picture of the video, and at the moment, the picture is a set of coordinate points of a certain part on a spherical surface, and the set is used as an anchor point;
(33) No matter how the angle of the user is adjusted, the picture is still in the sphere, when the video is finished, the picture at the last place of the user is recorded, and at the moment, a coordinate point set is generated on the picture, the intersection processing is carried out on the picture and the anchor point set, when the intersection data is more than 50% of the total of the anchor point data, the guidance is not carried out, and when the intersection data is less than 50% of the total of the anchor point data, the guidance is carried out.
2. The VR device-based picture viewing angle correction method of claim 1, wherein in step (1), specifically: when a user starts to watch, recording real-time pictures and positions of the user as VR video main picture playing areas, transmitting the pictures and positions to a data processing center to be positioned as anchor points, and transmitting the changed angles to the data processing center in real time when the user changes the watching angles.
3. The VR device-based picture viewing angle correction method of claim 1, wherein in step (2), specifically: the guiding terminal plays, switches and guides the rendering of the output content, after the data processing center transmits the processed data processing to the guiding terminal, the guiding terminal analyzes the processed data processing and renders the video content, and the guiding and informing the user of the direction of the main picture is convenient for the user to watch.
4. The VR device-based picture viewing angle correction method of claim 1, wherein in step (3), the specific guiding method is as follows:
(a) Calculate the viewing angle of the user back to the beginning: guiding when the intersection data is less than 50% of the sum of anchor point data, wherein the center of the angle of the picture where the user is located and the coordinate point from a certain coordinate point to the anchor point center can be connected into a line on the spherical surface;
(b) Video processing appearance guidance: processing the coordinates of the line, and guiding the user to return to the main picture in the form of an arrow;
(c) User adjustment: and after the angle of the user is unchanged, wherein the angle refers to a range, and when the angle is smaller than the range, the angle is regarded as unchanged, the angle picture where the user is positioned is produced into a coordinate set, and intersection processing is carried out to judge whether the angle picture is in a main picture area or not.
5. The VR device-based picture viewing angle correction method of claim 1, wherein in step (3), when the user changes the angle, the angle is compared with the home screen angle again, if the home screen appears within the user viewing angle without guidance prompt, and if the angle is detected to have not entered the home screen area after 10 seconds, the guidance will also disappear.
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