17916459. TRANSFORM-BASED IMAGE CODING METHOD AND DEVICE THEREFOR simplified abstract (LG ELECTRONICS INC.)
TRANSFORM-BASED IMAGE CODING METHOD AND DEVICE THEREFOR
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TRANSFORM-BASED IMAGE CODING METHOD AND DEVICE THEREFOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 17916459 titled 'TRANSFORM-BASED IMAGE CODING METHOD AND DEVICE THEREFOR
Simplified Explanation
The abstract describes an image decoding method that involves performing a non-separable inverse transform on a transform block. The method includes receiving a restriction flag to determine whether to perform the non-separable inverse transform in a low frequency area of the block. It also involves receiving an activation flag to indicate whether to activate the non-separable inverse transform. The method further includes parsing a transform index based on the restriction flag and activation flag, and performing the non-separable inverse transform on the transform block using the transform index.
- The method involves receiving a restriction flag to determine whether to perform a non-separable inverse transform in a low frequency area of a transform block.
- An activation flag is received to indicate whether to activate the non-separable inverse transform.
- A transform index is parsed based on the restriction flag and activation flag.
- The non-separable inverse transform is performed on the transform block using the transform index.
Potential Applications
- Image and video decoding systems
- Multimedia applications
- Video streaming platforms
Problems Solved
- Efficient decoding of images and videos
- Optimization of non-separable inverse transform in low frequency areas
- Flexibility in activating and restricting the transform based on specific requirements
Benefits
- Improved image and video decoding performance
- Enhanced efficiency in processing low frequency areas
- Customizable activation and restriction of the non-separable inverse transform
Original Abstract Submitted
An image decoding method according to the present document may comprise the steps of: receiving, at a general restriction information level, a restriction flag for restricting whether to perform a non-separable inverse transform in a low frequency area of a transform block; receiving, at a sequence parameter set level, an activation flag indicating whether to activate the non-separable inverse transform; parsing a transform index used for the non-separable inverse transform, on the basis of the restriction flag and the activation flag; and performing the non-separable inverse transform on the transform block on the basis of the transform index.
