Lg electronics inc. (20240205456). IMAGE CODING METHOD AND APPARATUS THEREFOR simplified abstract

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IMAGE CODING METHOD AND APPARATUS THEREFOR

Organization Name

lg electronics inc.

Inventor(s)

Moonmo Koo of Seoul (KR)

Seunghwan Kim of Seoul (KR)

Jaehyun Lim of Seoul (KR)

IMAGE CODING METHOD AND APPARATUS THEREFOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240205456 titled 'IMAGE CODING METHOD AND APPARATUS THEREFOR

The image decoding method described in this patent application involves deriving modified transform coefficients for transform coefficients based on an inverse secondary transform. This process includes deriving a transform kernel to be applied to the inverse secondary transform, with the transform kernel being set to a 64x32 matrix when the horizontal and vertical lengths of the target block are both greater than or equal to 8, and a 64x16 matrix sampled from the 64x32 matrix when the horizontal and vertical lengths of the target block are both 8.

  • Deriving modified transform coefficients for transform coefficients based on an inverse secondary transform
  • Setting the transform kernel to a 64x32 matrix when the horizontal and vertical lengths of the target block are both greater than or equal to 8
  • Applying a 64x16 matrix sampled from the 64x32 matrix to the inverse secondary transform of the target block when the horizontal and vertical lengths of the target block are both 8

Potential Applications: - Image and video decoding technologies - Multimedia processing systems - Compression algorithms

Problems Solved: - Enhancing image decoding efficiency - Improving the quality of decoded images - Optimizing transform coefficients for better performance

Benefits: - Faster image decoding process - Higher quality output images - Enhanced performance of multimedia processing systems

Commercial Applications: Title: Advanced Image Decoding Technology for Multimedia Systems Description: This technology can be utilized in various commercial applications such as video streaming services, digital media players, and image editing software. It can improve the efficiency and quality of image decoding processes, leading to better user experiences and optimized multimedia performance.

Questions about Image Decoding Technology: 1. How does this image decoding method improve the efficiency of multimedia processing systems? 2. What are the potential implications of using a 64x32 matrix for the transform kernel in image decoding processes?


Original Abstract Submitted

an image decoding method according to this document comprises a step of deriving, for transform coefficients, modified transform coefficients on the basis of inverse secondary transform, wherein: the step of deriving the modified transform coefficients may comprise a step of deriving a transform kernel to be applied to the inverse secondary transform; on the basis of both the horizontal and vertical lengths of a target block being greater than or equal to 8 and the horizontal or vertical length being 8, the transform kernel may be set to a 64�32 matrix; and on the basis of both the horizontal and vertical lengths of the target block being 8, a 64�16 matrix sampled from the 64�32 matrix may be applied to the inverse secondary transform of the target block.