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A method, device and electronic equipment for selecting a coding unit reference frame

A coding unit and reference frame technology, applied in the field of video coding, can solve the problems of high complexity and low coding efficiency

Active Publication Date: 2022-03-08
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a method for selecting a reference frame of a coding unit to solve the problems of high complexity and low coding efficiency of existing coding technical solutions

Method used

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  • A method, device and electronic equipment for selecting a coding unit reference frame
  • A method, device and electronic equipment for selecting a coding unit reference frame
  • A method, device and electronic equipment for selecting a coding unit reference frame

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Embodiment Construction

[0062] In order to better understand the above-mentioned purpose, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0063] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementations disclosed below.

[0064] Embodiments of the present application provide a method for selecting a coding unit referen...

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Abstract

The present application discloses a method, device and electronic equipment for selecting a coding unit reference frame. Wherein, the method for selecting the reference frame of the coding unit includes: obtaining a coding unit; obtaining a reference frame set corresponding to the coding unit according to the coded depth of the coding unit; performing encoding optimization calculations for each reference frame, selecting the preferred reference frame of the prediction unit corresponding to the coding unit; and using the selected preferred reference frame as the preferred reference frame of the coding unit. The technical solution does not need to traverse each reference frame in the original reference frame set, avoids the calculation of irrelevant reference frames, and reduces the computational complexity of the multi-reference frame selection process in the video encoding process, thereby basically not reducing the Under the condition of high quality and no increase in bit rate, the computing efficiency of encoding, transcoding and compression is significantly improved, and the real-time applicability of video encoder is also enhanced.

Description

technical field [0001] The present application relates to the technical field of video coding, and in particular to a method for selecting a coding unit reference frame. The present application also relates to a device for selecting a coding unit reference frame, an electronic device, and another method for selecting a coding unit reference frame. Background technique [0002] The HEVC coding standard can be used to improve the relationship between video compression and video coding stream, coding quality, delay and algorithm complexity, so that video coding and video compression can achieve relatively optimized results. [0003] Generally, HEVC coding adopts a relatively flexible data mode. For example, a coding tree unit with a size of 64×64 and a depth of 4 can contain up to 85 coding units with different depths. These coding units correspond to different numbers and different divisions at different depths. The prediction unit for the mode. Among them, each coding unit ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/102H04N19/147H04N19/503
CPCH04N19/102H04N19/147H04N19/503
Inventor 沈操储开颜江文斐
Owner ALIBABA GRP HLDG LTD