Method and apparatus for video coding using palette mode

The method of determining encoding unit size and enabling palette mode for larger blocks in video decoding improves the efficiency of encoding and decoding high-definition and ultra-high-definition video data, addressing the challenges of increased data volume in existing technologies.

JP7876686B2Active Publication Date: 2026-06-19BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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Patent Information

Application Number
JP2025107913
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-01-11
Filing Date
2025-06-26
Publication Date
2026-06-19
Estimated Expiration
2041-01-11

AI Technical Summary

Technical Problem

Existing video coding technologies face challenges in efficiently encoding and decoding high-definition and ultra-high-definition video data while maintaining image quality, as the amount of data to be processed increases exponentially.

Method used

Implementing a method for video decoding that includes receiving syntax elements from a bitstream to determine the size and type of encoding units, enabling palette mode for blocks larger than a minimum size, and decoding these units using a palette mode flag.

Benefits of technology

Enhances the efficiency of video encoding and decoding processes by optimizing the handling of larger blocks, thereby improving the compression and quality of high-definition and ultra-high-definition video data.

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Patent Text Reader

Abstract

To provide a system and a method for encoding and decoding video using palette mode.SOLUTION: A video coding method includes receiving from a bitstream a plurality of syntax elements associated with a coding unit and indicating a size and a coding tree type of the coding unit, determining a minimum palette mode block size for the coding unit in response to the coding tree type of the coding unit, receiving from the bitstream a palette mode enable flag associated with the coding unit in response to determining that the size of the coding unit is greater than the minimum palette mode block size, and decoding the coding unit from the bitstream in response to the palette mode enable flag.SELECTED DRAWING: Figure 6
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Citation Information

Patent Citations

  • Restriction on palette block size in video coding

    US20160234494A1