Bewegungsbild-Codiervorrichtung, Bewegungsbild-Codierverfahren und computerlesbares Informationsaufzeichnungsmedium

Details

Veröffentlichungs-Nr.

EP2552116

Aktenzeichen

EP12165942

Anmeldetag

27. April 2012

Veröffentlichung

10. Juni 2020

Erteilung

10. Juni 2020

Rechtsraum

EP

IPC

H04N19/147H04N19/174H04N19/18H04N19/176H04N19/132H04N19/11

Abstract

A motion picture coding apparatus divides an image into plural blocks and codes the image; determines a coding mode to be used for each of the blocks; determines, for coefficients of each of the plural blocks coded in the determined coding mode, a position for which coefficients in the block are replaced by "0" based on rate information; determines whether a to-be-processed block is a first block for which referring to pixel values of an upward adjacent block is not allowed; changes, for coefficients of a block of DC components after orthogonal transformation or quantization in the block determined as the first block, the determined position to a position at which the number of coefficients to be replaced by "0" is reduced; and replaces coefficients of the block of DC components after orthogonal transformation or quantization in the block determined as the first block based on the changed position.

Anmelder

Firma

FUJITSU LIMITED

Land

🇯🇵 Japan

Fachgebiete