Samsung electronics co., ltd. (20240107058). METHODS AND APPARATUSES FOR ENCODING AND DECODING MOTION VECTOR DIFFERENCE USING SEQUENCE MMVD INFORMATION simplified abstract

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METHODS AND APPARATUSES FOR ENCODING AND DECODING MOTION VECTOR DIFFERENCE USING SEQUENCE MMVD INFORMATION

Organization Name

samsung electronics co., ltd.

Inventor(s)

Seungsoo Jeong of Suwon-si (KR)

Minwoo Park of Suwon-si (KR)

METHODS AND APPARATUSES FOR ENCODING AND DECODING MOTION VECTOR DIFFERENCE USING SEQUENCE MMVD INFORMATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240107058 titled 'METHODS AND APPARATUSES FOR ENCODING AND DECODING MOTION VECTOR DIFFERENCE USING SEQUENCE MMVD INFORMATION

Simplified Explanation

The patent application describes a video decoding method that involves utilizing motion vector difference information to reconstruct blocks in a sequence. Here are the key points of the innovation:

  • Obtaining sequence merge mode with motion vector difference (sequence mmvd) information from a sequence parameter set.
  • Checking if the mmvd mode is applicable in the current sequence based on the sequence mmvd information.
  • Obtaining first mmvd information from a bitstream to determine if the mmvd mode is applied in a first inter prediction mode for a current block.
  • Reconstructing the motion vector of the current block for use in the first inter prediction mode based on the motion vector difference distance and direction obtained from the bitstream.
  • Reconstructing the current block using the motion vector of the block.

Potential Applications

This technology can be applied in video decoding systems, multimedia applications, video streaming services, and video compression technologies.

Problems Solved

1. Efficient utilization of motion vector difference information for reconstructing video blocks. 2. Improved video decoding performance and accuracy.

Benefits

1. Enhanced video quality and clarity. 2. Reduced decoding errors and artifacts. 3. Increased efficiency in video processing.

Potential Commercial Applications

Optimized Video Decoding Method for Enhanced Performance

Possible Prior Art

Prior art related to motion vector difference utilization in video decoding systems and methods could be relevant to this patent application.

Unanswered Questions

How does this method compare to existing video decoding techniques in terms of computational complexity?

The article does not provide information on the computational complexity of this method compared to other video decoding techniques.

What impact does the utilization of mmvd mode have on overall video decoding speed and efficiency?

The article does not address the specific impact of using the mmvd mode on the speed and efficiency of video decoding processes.


Original Abstract Submitted

provided is a video decoding method including: obtaining, from a sequence parameter set, sequence merge mode with motion vector difference (sequence mmvd) information indicating whether an mmvd mode is applicable in a current sequence; when the mmvd mode is applicable according to the sequence mmvd information, obtaining, from a bitstream, first mmvd information indicating whether the mmvd mode is applied in a first inter prediction mode for a current block included in the current sequence; when the mmvd mode is applicable in the first inter prediction mode according to the first mmvd information, reconstructing a motion vector of the current block which is to be used in the first inter prediction mode, by using a distance of a motion vector difference and a direction of a motion vector difference obtained from the bitstream; and reconstructing the current block by using the motion vector of the current block.