18649959. CODING OF TRANSFORM COEFFICIENTS IN VIDEO CODING simplified abstract (BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.)

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CODING OF TRANSFORM COEFFICIENTS IN VIDEO CODING

Organization Name

BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.

Inventor(s)

Yi-Wen Chen of San Diego CA (US)

Xiaoyu Xiu of San Diego CA (US)

Tsung-Chuan Ma of San Diego CA (US)

Xianglin Wang of San Diego CA (US)

CODING OF TRANSFORM COEFFICIENTS IN VIDEO CODING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18649959 titled 'CODING OF TRANSFORM COEFFICIENTS IN VIDEO CODING

Simplified Explanation: The patent application describes methods and devices for video coding, specifically focusing on determining context indexes for Coded Block Flags (CBF) based on intra subpartition split types.

Key Features and Innovation:

  • Determining context indexes for CBF flags based on intra subpartition split types.
  • Decoding CBF flags depending on whether a transform unit is the first one to be parsed in a coding unit.

Potential Applications: This technology can be applied in video coding and compression algorithms to improve efficiency and reduce data size in video transmission and storage.

Problems Solved: This technology addresses the challenge of efficiently coding video data by optimizing the determination of CBF flags based on specific split types.

Benefits:

  • Improved video coding efficiency.
  • Reduced data size in video transmission and storage.
  • Enhanced video quality through optimized coding techniques.

Commercial Applications: This technology can be utilized in video streaming services, video conferencing platforms, surveillance systems, and any application that involves video compression and transmission.

Prior Art: Researchers can explore prior patents related to video coding, intra subpartition split types, and context-based decoding of CBF flags to understand the existing technology landscape.

Frequently Updated Research: Stay updated on advancements in video coding algorithms, intra subpartition split techniques, and context-based decoding methods to enhance the efficiency of video compression technologies.

Questions about Video Coding: 1. How does this technology improve the efficiency of video compression? 2. What are the potential implications of optimizing CBF flag determination based on intra subpartition split types?


Original Abstract Submitted

Methods and devices for video coding are provided. In the method, the device determines, for a current luma transform block in a coding unit, whether an intra subpartition (ISP) split type is an ISP mode. In response to determining that the intra subpartition split type is not the ISP mode, the device determines a first context index for a Coded Block Flag (CBF) flag of the current luma transform block as being equal to zero or one, where the CBF flag specifies whether the current luma transform block comprises one or more transform coefficient levels not equal to zero. In response to determining that the intra subpartition split type is the ISP mode, the device determines the first context index based on whether a current transform unit is a first one to be parsed in the coding unit. The device decodes the CBF flag based on the first context index.

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