A Fast Mode Selection Method for Video Coding

A technology of video coding and mode selection, which is applied in the fields of digital video signal modification, electrical components, image communication, etc., can solve the problems of reducing video coding efficiency and high computational complexity, and achieve the effect of improving coding speed and good application prospects.

Active Publication Date: 2018-03-30
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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Problems solved by technology

[0006] The technical problem solved by the present invention is based on the H.265 coding standard. Obtaining the optimal coding performance needs to check all possible PU modes in each layer of CU units through recursive traversal, which has high computational complexity and reduces video coding efficiency. question

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  • A Fast Mode Selection Method for Video Coding

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] The fast mode selection method for video coding of the present invention greatly improves the coding speed without losing the coding efficiency, such as figure 1 As shown, the video coding unit running on the H.265 coding standard includes the following steps,

[0025] Step (1), making a decision on the partial coding mode PU of the coding unit CU of the current layer;

[0026] Step (2), recursively downwardly make mode decisions on the four sub-coding units of the current layer coding unit CU;

[0027] Step (3), judging whether the coding unit CU of the current layer needs to try other coding modes;

[0028] If step (4) is not needed, then end the mode decision of the coding unit CU of the current layer; if necessary, make a decision on the coding mode of the coding unit CU of the current layer, and repeat steps (2)-step (3).

[0029] Wherein, in step (3), i...

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Abstract

The invention discloses a fast mode selection method for video coding, which runs on a video coding unit of the H.265 coding standard, and comprises the following steps: 1) making a decision on a part of the coding mode of the current layer coding unit; 2) recursively downward When the four sub-coding units of the current layer coding unit make a mode decision; 3) judge whether the current layer coding unit needs to try the remaining coding modes; 4) if not, end the mode decision of the current layer coding unit; if necessary, then Make a decision on the coding mode of the coding unit of the current layer, and repeat 2)-3). The fast mode selection method of video coding of the present invention greatly improves the coding speed without losing the coding efficiency, and has good application prospects.

Description

technical field [0001] The invention relates to a fast mode selection method for video encoding, which belongs to the technical field of network video processing. Background technique [0002] Network video is one of the most important applications of the Internet. High-definition video will be an inevitable trend in the field of broadcasting and television. The current development trend of mobile video is also showing a blowout trend. It can be predicted that video applications will be the biggest hot spot in the field of digital multimedia in the next few years. [0003] Due to the limitations of factors such as network bandwidth and delay, the primary difficulty faced in video applications is the video codec problem. The video codec system is the core of the video application field. It determines the quality of media services and directly affects key issues such as network bandwidth requirements, user experience quality, decoding equipment requirements, and live broadcas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/103H04N19/147
Inventor 王悦朱政彭斌金星林松丁丹丹
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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