Free viewpoint video picture splicing method, terminal and readable storage medium
A picture splicing and viewpoint technology, applied in TV, color TV, color TV components and other directions, can solve the problems of low resolution of single-channel video, limitation of maximum codec resolution, conflict of resolution of single-channel video, etc. The effect of increasing the resolution
Active Publication Date: 2022-01-07
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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Problems solved by technology
For the way of spatial splicing, due to the limited encoding and decoding computing power supported by terminal decoding and playback equipment, the maximum encoding and decoding resolution is limited, so there is a serious conflict between the resolution of single-channel video and the number of viewpoints supported for transmission, resulting in The resolution of the single video is low
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[0043] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0044] Main technical scheme of the present invention is:
[0045] receiving a display request sent by the display terminal, and obtaining a target timestamp and a viewpoint identifier corresponding to the target viewpoint according to the display request;
[0046] receiving the video code stream sent by the encoding end, decoding the video code stream through a decoder, and obtaining a video sequence;
[0047] Acquiring a video frame group corresponding to the target time stamp in the video sequence, wherein each video frame group includes at least two video frames with the same time stamp;
[0048] Intercepting a target image according to the arrangement information of the video frame group and the viewpoint identifier corresponding to the target viewpoint;
[0049] Sending the target image to a display terminal f...
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The invention discloses a free viewpoint video picture splicing method, a terminal and a readable storage medium, and the free viewpoint video picture splicing method comprises the following steps: receiving a display request, and obtaining a target timestamp and a viewpoint identifier corresponding to a target viewpoint according to the display request; receiving a video code stream, and decoding the video code stream through a decoder to obtain a video sequence; acquiring a video frame group corresponding to the target timestamp in the video sequence; intercepting a target image according to the arrangement information of the video frame group and the viewpoint identifier corresponding to the target viewpoint; and sending the target image to a display end. According to the invention, the video pictures corresponding to different viewpoints at the same moment are spliced to generate the plurality of video frames and send the video frames to a decoding end, and the decoding end receives the video frames and intercepts and displays the image corresponding to the current viewpoint from the video frames, so that a video picture spliced by one video frame is reduced, and the purpose of improving the resolution is achieved.
Description
technical field [0001] The invention relates to the field of free viewpoints, in particular to a method for mosaicing free viewpoint video images, a terminal and a readable storage medium. Background technique [0002] Free viewpoint applications allow viewers to watch videos in the form of continuous viewpoints within a certain range. The viewer can set the position and angle of the viewpoint, and is no longer limited to a fixed camera angle of view. This application often requires multiple cameras to shoot at the same time and generate videos from multiple viewpoints at the same time. In some free viewpoint applications, it is also necessary to generate depth maps corresponding to videos from multiple viewpoints. [0003] Traditional free-viewpoint applications often use spatial stitching. For the way of spatial splicing, due to the limited encoding and decoding computing power supported by terminal decoding and playback equipment, the maximum encoding and decoding resol...
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IPC IPC(8): H04N5/265H04N21/44H04N21/4402H04N21/845
CPCH04N5/265H04N21/44016H04N21/440281H04N21/8456
Inventor 王荣刚王振宇高文
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL