Lg electronics inc. (20240121430). IMAGE DECODING METHOD AND APPARATUS BASED ON MOTION PREDICTION USING MERGE CANDIDATE LIST IN IMAGE CODING SYSTEM simplified abstract

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IMAGE DECODING METHOD AND APPARATUS BASED ON MOTION PREDICTION USING MERGE CANDIDATE LIST IN IMAGE CODING SYSTEM

Organization Name

lg electronics inc.

Inventor(s)

Jaeho Lee of Seoul (KR)

Seunghwan Kim of Seoul (KR)

IMAGE DECODING METHOD AND APPARATUS BASED ON MOTION PREDICTION USING MERGE CANDIDATE LIST IN IMAGE CODING SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240121430 titled 'IMAGE DECODING METHOD AND APPARATUS BASED ON MOTION PREDICTION USING MERGE CANDIDATE LIST IN IMAGE CODING SYSTEM

Simplified Explanation

The image decoding method described in the abstract involves deriving motion information for a sub-block unit within a current block, generating prediction samples based on control point motion vectors, and reconstructing a picture for the current block.

  • Constructing a candidate list for merge candidates based on neighboring blocks with the same reference picture index.
  • Deriving control point motion vectors for control points of the current block from the merge candidate list.
  • Generating prediction samples for the current block using the derived control point motion vectors.
  • Creating a reconstructed picture for the current block based on the prediction samples.

Potential Applications

This technology could be applied in video compression algorithms, video streaming services, and video editing software.

Problems Solved

This technology helps improve the efficiency and accuracy of image decoding processes, leading to better video quality and reduced file sizes.

Benefits

The benefits of this technology include enhanced video compression, smoother video playback, and more efficient use of storage space.

Potential Commercial Applications

Potential commercial applications of this technology include video encoding software, multimedia devices, and online video platforms.

Possible Prior Art

One possible prior art for this technology could be existing video compression algorithms that utilize motion estimation and compensation techniques.

Unanswered Questions

How does this technology compare to other image decoding methods in terms of efficiency and performance?

This article does not provide a direct comparison with other image decoding methods to assess its efficiency and performance.

What impact could this technology have on the future development of video compression standards?

The article does not discuss the potential influence of this technology on the evolution of video compression standards.


Original Abstract Submitted

an image decoding method performed by a decoding apparatus according to the present document includes constituting a candidate list for deriving motion information of a sub-block unit for a current block, wherein the merge candidate list includes constructed candidates; deriving control point motion vectors (cpmvs) for control points (cps) of the current block based on the merge candidate list; deriving prediction samples for the current block based on the cpmvs; and generating a reconstructed picture for the current block based on the derived prediction samples, wherein the constructed candidates are derived based on combination of at least two of a first neighboring block in a first group, a second neighboring block in a second group, a third neighboring block in a third group and a fourth neighboring block, and the first neighboring block, the second neighboring block and the third neighboring block and the fourth neighboring block constituting the combination have the same reference picture index.