20240048730. METHOD AND APPARATUS FOR IMPROVED WARP DELTA SIGNALING simplified abstract (TENCENT AMERICA LLC)

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METHOD AND APPARATUS FOR IMPROVED WARP DELTA SIGNALING

Organization Name

TENCENT AMERICA LLC

Inventor(s)

Han Gao of San Diego CA (US)

Liang Zhao of Sunnyvale CA (US)

Xin Zhao of San Jose CA (US)

Shan Liu of San Jose CA (US)

METHOD AND APPARATUS FOR IMPROVED WARP DELTA SIGNALING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240048730 titled 'METHOD AND APPARATUS FOR IMPROVED WARP DELTA SIGNALING

Simplified Explanation

The patent application describes systems and methods for encoding and decoding using warp motion modes. These methods involve receiving a bitstream that contains a coded picture and obtaining warp information from the bitstream. The warp information includes a warp type that indicates the number of parameters to be corrected by delta values. These parameters define the warp motion for predicting a current block of the coded picture. The method further involves obtaining at least one delta value from the bitstream, which represents a correction for one of the parameters defining the warp motion. A warp model is then obtained based on the warp information and the delta value. Finally, the current block is predicted by performing warped motion compensation using the warp model.

  • Systems and methods for encoding and decoding using warp motion modes are provided.
  • The method involves receiving a bitstream containing a coded picture.
  • Warp information is obtained from the bitstream, which includes a warp type indicating the number of parameters to be corrected by delta values.
  • At least one delta value is obtained from the bitstream, representing a correction for one of the parameters defining the warp motion.
  • A warp model is obtained based on the warp information and the delta value.
  • The current block is predicted by performing warped motion compensation using the warp model.

Potential applications of this technology:

  • Video encoding and decoding systems
  • Video streaming platforms
  • Virtual reality and augmented reality applications
  • Video conferencing and telecommunication systems

Problems solved by this technology:

  • Improves the efficiency and accuracy of video encoding and decoding
  • Reduces the amount of data required for transmitting video
  • Enhances the quality of video playback and streaming
  • Enables more realistic and immersive virtual reality experiences

Benefits of this technology:

  • Higher compression efficiency, leading to reduced bandwidth requirements
  • Improved video quality with reduced artifacts and motion blur
  • Enhanced user experience in video streaming and communication applications
  • Enables smoother and more accurate motion prediction in video encoding and decoding systems


Original Abstract Submitted

systems and methods for encoding and decoding using warp motion modes are provided. a method includes receiving a bitstream that includes a coded picture; obtaining warp information that is signaled in the bitstream, the warp information including a warp type indicating a number of parameters to be corrected by delta values, the number of parameters defining warp motion for predicting a current block of the coded picture; obtaining at least one delta value from the bitstream that is a delta of at least one parameter that defines the warp motion for predicting the current block; obtaining a warp model based on the warp information and the at least one delta value; and predicting the current block by performing warped motion compensation using the warp model.