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Screen video encoding mode determination method, encoding method, device and computing device

A coding mode and screen video technology, applied in the field of video coding and decoding, can solve the problems of increasing the coding complexity of screen video and affecting the quality of user visual experience, reduce the complexity of search time, ensure coding quality and coding performance, and achieve high coding performance effect

Active Publication Date: 2022-05-03
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to the addition of new coding tools, in the process of selecting the prediction mode for each coding block (CU), in addition to the traditional HEVC mode coding process, IBC mode and palette mode must be performed, which will inevitably lead to The increased complexity of screen video coding brings greater challenges to network traffic and bandwidth, and affects the quality of users' visual experience

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  • Screen video encoding mode determination method, encoding method, device and computing device
  • Screen video encoding mode determination method, encoding method, device and computing device
  • Screen video encoding mode determination method, encoding method, device and computing device

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Embodiment Construction

[0028] In order to make the objects, technical solutions, and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

[0029] In this specification and the drawings, substantially the same or similar steps and elements are denoted by the same or similar reference numerals, and repeated descriptions of these steps and elements will be omitted. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance or ranking.

[0030] The ...

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Abstract

The application discloses a method for determining a screen video encoding mode, an encoding method, a device and a computing device. The determination method includes: using the basic coding mode and the first type of IBC coding mode to respectively code the current coding block of the current frame to obtain at least two coding costs; coding the minimum coding cost corresponding to the at least two coding costs The mode is determined as a candidate coding mode; and when the candidate coding mode is a basic coding mode, and the number of basic coding modes in the coding modes of the coded surrounding coding blocks of the current coding block is greater than or equal to a preset threshold, skip using the IBC The remaining IBC encoding modes in the encoding mode set encode the current encoding block, and determine the basic encoding mode as the encoding mode of the current encoding block, wherein the first type of IBC encoding mode is the encoding with the lowest encoding complexity in the IBC encoding mode set mode, the coding complexity of the basic coding mode is lower than that of the first type of IBC coding mode.

Description

technical field [0001] The invention belongs to the technical field of video coding and decoding, and in particular relates to a method and device for determining a coding mode of a screen video, a method and a device for coding a screen video, and a computing device. Background technique [0002] With the development of computer applications, screen video is widely used in application scenarios such as video conferencing, online education, and remote desktop. Screen video is a video obtained by intercepting screen content images of electronic devices such as computers and mobile phones. It has many obvious differences from traditional natural videos. For example, the screen content images in screen videos are discontinuous tone content, while natural video The natural image of the video is continuous tone content; the local area of ​​the screen video has a small number of colors, a large number of sharp boundaries, a large number of flat areas, high-contrast text, and a lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/11H04N19/132
CPCH04N19/11H04N19/132
Inventor 张涛
Owner TENCENT TECH (SHENZHEN) CO LTD