Title:
VIDEO SIGNAL PROCESSING METHOD USING DEPENDENT QUANTIZATION AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/132660
Kind Code:
A1
Abstract:
A video signal decoding device comprises a processor which: determines a particular quantizer for reconstructing a first quantized transform coefficient, the particular quantizer being one of a first quantizer and a second quantizer which are different from each other, the particular quantizer being determined on the basis of the state of the first quantized transform coefficient; reconstructs the first quantized transform coefficient on the basis of the particular quantizer to obtain a reconstructed transform coefficient; and updates the state of a second quantized transform coefficient that is reconstructed after the first quantized transform coefficient, wherein the first quantized transform coefficient and the second quantized transform coefficient are transform coefficients in the current block.
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Inventors:
KIM KYUNGYONG (KR)
KIM DONGCHEOL (KR)
SON JUHYUNG (KR)
KWAK JINSAM (KR)
KIM DONGCHEOL (KR)
SON JUHYUNG (KR)
KWAK JINSAM (KR)
Application Number:
PCT/KR2023/000234
Publication Date:
July 13, 2023
Filing Date:
January 05, 2023
Export Citation:
Assignee:
WILUS INST STANDARDS & TECH INC (KR)
International Classes:
H04N19/124; H04N19/11; H04N19/119; H04N19/129; H04N19/132; H04N19/176; H04N19/70
Foreign References:
| JP2022500891A | 2022-01-04 | |||
| KR20210025106A | 2021-03-08 | |||
| KR20210154942A | 2021-12-21 | |||
| KR20210065155A | 2021-06-03 | |||
| US20200083938A1 | 2020-03-12 |
Attorney, Agent or Firm:
HONG, Sungjin (KR)
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