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Fast division of video cu based on regional decision tree

A decision tree and regional technology, applied in the direction of digital video signal modification, image communication, electrical components, etc., can solve problems such as distortion and unsuitable for projecting video

Active Publication Date: 2022-01-28
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While projected and traditional video are planar videos, projected video causes distortion and extends to spherical video
Therefore, the objective quality assessment metric (PSNR) of traditional video is not suitable for projection video

Method used

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  • Fast division of video cu based on regional decision tree
  • Fast division of video cu based on regional decision tree
  • Fast division of video cu based on regional decision tree

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Embodiment Construction

[0065] Various aspects are now described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that such aspects can be practiced without these specific details.

[0066] As used in this application, the terms "component", "module", "system" and the like are intended to refer to a computer-related entity such as, but not limited to, hardware, firmware, a combination of hardware and software, software, Or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an application running on a computing device and the computing device can be components. One or more components can reside within a process and / or thread of execution and a compo...

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Abstract

Methods and products for use in High Efficiency Video Coding (HEVC). For virtual reality 360-degree video frames, the pruning decision tree and the pre-partition decision tree are used to divide the CU. For different regions, different attributes are designed for the pruning decision tree and the decision tree for partitioning in advance. The pruning decision tree attribute considers the difference in RDcost of different adjacent regions and the current CTU region in different ways. Partitioning the decision tree ahead of time considers the depth values ​​of different neighboring regions and the current CTU region in different ways.

Description

technical field [0001] The present invention relates to the field of image and video processing, and more specifically, to a method, device and computer program product for dividing coding units (CUs) of virtual reality 360-degree video frames in High Efficiency Video Coding (HEVC). Background technique [0002] Virtual reality video is to use a professional camera to capture the image information of the entire scene, the video is spliced ​​by software, and played by special equipment. It also provides viewers with various functions of manipulating images, which can zoom in, zoom out and move in various directions to watch the scene, thus simulating and reproducing the real environment of the scene. In a virtual reality system, multiple cameras capture a 360-degree scene and stitch it all into a spherical video, creating a 360-degree video. When we encode 360-degree video, we have to project spherical video into planar video to accommodate widely used coding standards such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/122H04N19/169H04N19/147H04N19/196H04N19/96
Inventor 刘志张萌萌
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY