Transform method based on block information, and apparatus using said method
AssigneeGoldpeak Innovations Inc
InventorSun Young Lee
Life of this patent
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Abstract
Disclosed are a transform method based on block information and an apparatus using the method. An image-decoding method comprises: a step of taking information on a block as an input; and a transform method determination step of determining an inverse transform method for the block on the basis of whether or not the prediction mode of the block is an intra-prediction mode, whether or not the size of the block satisfies a predetermined condition, and whether or not the block is a block for a luminance sample. Accordingly, encoding efficiency can be improved by using an appropriate transform method on the basis of the information on a prediction block and an intra-prediction mode.
Claims2
A video decoding method, comprising:
- determining information about a block;
- and determining an inverse transform method of the block based on whether the prediction block is a block using an intra prediction mode, whether a size of the block satisfies a specific condition, and whether the block is a block for a luma sample.
2-10. (canceled)
Dependencies are inferred from the claim text.