Encoding and decoding method of yuv4:4:4 data

A coding and decoding method and data technology, applied to color TV parts, TV system parts, digital video signal modification, etc., to achieve high-quality image quality, high-quality video playback experience, and continuous storage space

Active Publication Date: 2022-05-20
无锡思朗电子科技有限公司
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AI Technical Summary

Problems solved by technology

However, the mainstream compressed digital video codec chips cannot complete the codec of YUV4:4:4 data alone.

Method used

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  • Encoding and decoding method of yuv4:4:4 data
  • Encoding and decoding method of yuv4:4:4 data

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Embodiment 1

[0036] In order to solve the above technical problems, Embodiment 1 provides a method for encoding and decoding YUV4:4:4 data, and its flow chart is as follows figure 1 As shown, it specifically includes the following steps:

[0037] The present invention provides a method for encoding and decoding YUV4:4:4 data, including steps S1 to S6:

[0038] Step S1: Obtain the first timing data 1 of 24bit in YUV4:4:4 sampling format;

[0039] Step S2: cache and reorder the first time-series data 1 to obtain two sets of 16-bit second intermediate data in YUV4:2:2 sampling format; wherein, the information combination of the two sets of second intermediate data includes the first time-series data 1 The information of all pixels of ;

[0040] Step S3: two groups of second intermediate data are respectively carried out BT1120 time series output, obtain two groups of YUV4:2:2 sampling format, the second time series data 21,22 of 16bit output with BT1120; The second time series data 21,22 of...

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Abstract

The present invention relates to an encoding and decoding method, in particular to an encoding and decoding method for YUV4:4:4 data. The method for encoding and decoding YUV4:4:4 data provided by the present invention obtains two sets of YUV4:2:2 that can be accepted by mainstream compressed digital video encoding and decoding chips by buffering and reordering the YUV4:4:4 data and outputting the BT1120 timing sequence. Sampling format, 16-bit second timing data output by BT1120, and then through the compression and decompression processing of the main chip, and finally reversely restore the original YUV4:4:4 data. The YUV4:4:4 data encoding and decoding method provided by the present invention can achieve the lowest bit rate and the least distortion; by sacrificing a certain storage space for continuous and smooth high-quality image performance, a more high-quality video playback experience is provided. Use the existing mainstream compressed digital video codec chip to complete the codec of YUV4:4:4 data, especially suitable for desktops in industries such as conferences and control centers that have higher requirements for image quality (YUV4:4:4 image data) application scenarios.

Description

technical field [0001] The present invention relates to an encoding and decoding method, in particular to an encoding and decoding method for YUV4:4:4 data. Background technique [0002] The ever-changing video demand has given birth to the development of algorithms such as H.264 / 265 with high compression ratio. But now mainstream compressed digital video codec chips, such as Hisilicon, Ambarella and other manufacturers' chips are mainly used in the security monitoring industry, and the industry only uses YUV4:2:2 or even YUV4:2:0 for color. For desktop applications in industries such as conferences and control centers, YUV4:4:4 color is a rigid requirement. However, the mainstream compressed digital video codec chip cannot complete the codec of YUV4:4:4 data alone. Contents of the invention [0003] How to use the existing mainstream compressed digital video codec chip to realize the codec of YUV4:4:4 quality signal is a technical problem to be solved urgently. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/44H04N21/4402H04N19/42H04N5/765
CPCH04N21/44004H04N21/4402H04N19/42H04N5/765
Inventor 刘正
Owner 无锡思朗电子科技有限公司
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