METHOD OF ENCODING/DECODING MULTI-VIEW VIDEO SEQUENCE BASED ON LOCAL ADJUSTMENT OF BRIGHTNESS AND CONTRACT OF REFERENCE FRAMES WITHOUT TRANSMITTING ADDITIONAL SERVICE DATA

摘要

FIELD: information technology.SUBSTANCE: method for local adjustment of brightness and contrast of a reference frame for encoding a multi-view video sequence including: obtaining pixel values of the current encoded block belonging to the encoded frame, and pixel values of a reference block belonging to a reference frame; obtaining restored pixel values neighbouring with respect to the current block of the encoded frame, and pixel values neighbouring with respect to the reference block of the reference frame; determining numerical relationships between pixel values of the reference block and pixel values neighbouring with respect to the reference block, and relationships between the restored pixel values, neighbouring with respect to the current encoded block, and pixel values neighbouring with respect to the reference block; numerical relationships found at the previous step are used to determine parameters for adjusting brightness and contrast for adjusting differences in brightness and contrast for the reference block compared to the current encoded block; and adjusting differences in brightness and contrast for the reference block using the found adjustment parameters.EFFECT: high encoding efficiency.13 cl, 10 dwg