Video compression method and device, video decompression method and device, electronic equipment and storage medium

A video compression and video frame technology, applied in the field of video processing, can solve the problems of free viewpoint video image quality impact, large compression loss of spliced ​​images, etc., achieve the effect of reducing compression loss, reducing compression loss, and improving image quality

Pending Publication Date: 2022-02-01
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, using the above-mentioned free-viewpoint video obtained by splicing texture maps and depth maps, using the current encoding method will cause a large compression loss in the stitched image, which in turn will have a great impact on the image quality of the free-viewpoint video reconstructed by the terminal

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  • Video compression method and device, video decompression method and device, electronic equipment and storage medium
  • Video compression method and device, video decompression method and device, electronic equipment and storage medium
  • Video compression method and device, video decompression method and device, electronic equipment and storage medium

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand and implement the embodiments in this specification, an implementation manner of free-viewpoint video is exemplarily introduced below in conjunction with the accompanying drawings and specific application scenarios.

[0066] refer to figure 1 , a specific application system for free viewpoint video display in the embodiment of the present invention may include a collection system 11 of a plurality of collection devices, a server 12 and a display device 13, wherein the collection system 11 can perform image collection of an area to be viewed; the collection system 11 or the server 12 may process the acquired synchronized multiple texture maps to generate multi-angle free-view data that can support the display device 13 to switch virtual viewpoints. The display device 13 can display reconstructed images generated based on multi-angle free view data. The reconstructed images correspond to virtual viewpoints. ...

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Abstract

The invention discloses a video compression method, a video decompression method, a video compression device, a video decompression device, an electronic device and a storage medium, wherein the video compression method comprises the following steps: obtaining a free viewpoint video frame, the video frame comprising a spliced image formed by synchronous texture maps of a plurality of viewpoints and depth maps of corresponding viewpoints; identifying a texture map area and a depth map area in the spliced image; encoding the texture map region by adopting a preset first encoding mode, and encoding the depth map region by adopting a preset second encoding mode to obtain a compressed video frame, wherein the second coding mode is a coding mode based on a region of interest. According to the scheme, the compression loss of the image can be reduced, so that the image quality of the free viewpoint video can be improved.

Description

technical field [0001] The embodiments of this specification relate to the technical field of video processing, and in particular, to a video compression method, decompression method, device, electronic equipment, and storage medium. Background technique [0002] Video data is data that supports video playback for users to watch. Usually, video data only supports users to watch from one viewing angle, and the user cannot adjust the viewing angle. [0003] Free viewpoint video is a technology that can provide a viewing experience with a high degree of freedom. Users can adjust the viewing angle through interactive operations during the viewing process, and watch from the desired free viewpoint, which can greatly improve the viewing experience. [0004] At present, in order to realize the playback of free-viewpoint video, there is currently a free-viewpoint video generation method based on the stitching of texture maps and depth maps. , the spliced ​​images at multiple frame ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/271H04N13/282
CPCH04N13/271H04N13/282
Inventor 盛骁杰
Owner ALIBABA GRP HLDG LTD
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