Japan, July 14 -- FRAUNHOFER GES ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV has got intellectual property rights for 'ENCODER, DECODER, METHOD, AND COMPUTER PROGRAM USING IMPROVED TRANSFORM-BASED SCALING.' Other related details are as follows:

Application Number: JP,2025-161855

Category (FI): H04N19/176,H04N19/126,H04N19/157,H04N19/12

Stage: PROBLEM TO BE SOLVED: To provide an encoder, a decoder, a method and a computer program product that use improved transform-based scaling.SOLUTION: A method for block-based decoding implemented by a decoder for block-based decoding of a coded picture signal using transform decoding includes: selecting a selected transform mode for a predetermined block; entropy decoding, from a data stream, a block to be dequantized that is associated with the predetermined block according to the selected transform mode; and dequantizing the block to be dequantized using a quantization accuracy that depends on the selected transform mode to obtain a dequantized block.SELECTED DRAWING: Figure 9 (Grant)

Filing Date: Sept. 29, 2025

Publication Date: Dec. 16, 2025

The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100

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