Title:
IMAGE DECODING APPARATUS AND IMAGE ENCODING APPARATUS USING AI AND METHOD BY SAID APPARATUSES
Document Type and Number:
WIPO Patent Application WO/2024/039166
Kind Code:
A1
Abstract:
A method for decoding an image, according to an embodiment, comprises the steps of: acquiring a motion vector of the current block; acquiring a preliminary prediction block on the basis of a reference block indicated, within a reference image, by the motion vector; acquiring a final prediction block for the current block by applying, to a neural network, at least one of a POC map including a POC difference between the current image including the current block and the reference image, the preliminary prediction block, and a quantization error map; and reconstructing the current block on the basis of a residual block acquired from a bitstream and the final prediction block, wherein sample values of the quantization error map may be calculated on the basis of a quantization parameter for the reference block.
Inventors:
KIM KYUNGAH (KR)
DINH QUOCKHANH (KR)
PARK MINSOO (KR)
PARK MINWOO (KR)
CHOI KWANGPYO (KR)
PIAO YINJI (KR)
DINH QUOCKHANH (KR)
PARK MINSOO (KR)
PARK MINWOO (KR)
CHOI KWANGPYO (KR)
PIAO YINJI (KR)
Application Number:
PCT/KR2023/012059
Publication Date:
February 22, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04N19/124; G06T9/00; H04N19/105; H04N19/174; H04N19/176; H04N19/527; H04N19/563; H04N19/577
Domestic Patent References:
| WO2022128137A1 | 2022-06-23 |
Foreign References:
| KR20190043930A | 2019-04-29 | |||
| US20220167000A1 | 2022-05-26 | |||
| KR20200004418A | 2020-01-13 | |||
| US20220116627A1 | 2022-04-14 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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