IMAGE CODING DEVICE, IMAGE CODING METHOD AND COMPUTER-READABLE RECORDING MEDIUM WITH IMAGE CODING SOFTWARE AS WELL AS IMAGE DECODING DEVICE AND COMPUTER-READABLE RECORDING MEDIUM WITH IMAGE DECODING SOFTWARE Russian patent published in 2021 - IPC H04N19/11 H04N19/196 H04N19/96

Abstract RU 2749503 C2

FIELD: image coding.

SUBSTANCE: invention relates to a technique for dividing an image into blocks and performing coding and decoding for each of the divided blocks. An image coding device is proposed that divides an image into blocks and performs coding for each of the divided blocks. The primary signal block dividing unit (101) divides the primary image signal into rectangles having a predetermined size and generates a primary signal block. The secondary signal block dividing unit (101) divides the secondary image signal into rectangles having a predetermined size, and generates a secondary signal block. The primary signal predictor (102) predicts the primary signal, and the secondary signal predictor (102) predicts the secondary signal. The secondary signal prediction unit (102) may inter-prediction prediction of the secondary signal from the encoded primary signal, and the inter-prediction is limited based on at least one of the block size of the primary signal and the block size of the secondary signal.

EFFECT: coding efficiency is improved.

6 cl, 33 dwg

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RU 2 749 503 C2

Authors

Fukushima Shigeru

Nakamura Hiroya

Kumakura Toru

Dates

2021-06-11—Published

2018-03-26—Filed