18601235. IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR simplified abstract (LG Electronics Inc.)
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IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR
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IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18601235 titled 'IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR
The image decoding method described in the abstract involves applying an inverse primary transform to a transform coefficient to derive residual samples for a current block.
- The inverse primary transform is based on an MTS index received from a bitstream.
- The MTS index is parsed based on an effective coefficient not existing in a second area excluding the left top first area of the current block.
- The first area refers to the left top 16x16 area of the current block.
Potential Applications: - Image and video decoding technologies - Multimedia compression and decompression systems - Digital signal processing applications
Problems Solved: - Efficient decoding of transform coefficients in image and video processing - Improved compression and decompression performance - Enhanced image quality and fidelity in multimedia applications
Benefits: - Higher quality image and video output - Reduced data storage and transmission requirements - Faster processing speeds for multimedia applications
Commercial Applications: Title: Advanced Image and Video Decoding Technology for Multimedia Systems This technology can be utilized in various commercial applications such as: - Video streaming services - Digital media players - Video conferencing systems - Surveillance cameras and security systems
Questions about Image Decoding Technology: 1. How does the MTS index impact the decoding process? The MTS index received from the bitstream determines the basis for the inverse primary transform applied to the transform coefficient, influencing the derivation of residual samples for the current block.
2. What is the significance of parsing the MTS index based on an effective coefficient not existing in a specific area? Parsing the MTS index in this manner ensures that the decoding process focuses on relevant coefficients within the current block, excluding unnecessary data from the left top first area.
Original Abstract Submitted
An image decoding method according to the present document comprises a step of applying an inverse primary transform to a transform coefficient so as to derive residual samples for a current block, wherein: the inverse primary transform is performed on the basis of an MTS index received from a bitstream; the MTS index is parsed on the basis of an effective coefficient not existing in a second area that excludes the left top first area of the current block; and the first area is a left top 16×16 area of the current block.
