Digital image encoding and decoding method and digital image...

Image analysis – Image compression or coding – Including details of decompression

Reexamination Certificate

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C382S232000, C382S238000, C382S235000, C382S241000

Reexamination Certificate

active

07016544

ABSTRACT:
A method for decoding a bitstream data obtained by encoding a target image comprises the steps of:(a) extracting from the bitstream data, coordinates point date indicating frame coordinates points of the reference image, coordinates number data indicating a number of the frame coordinates points and a compressed image signal related to a target image to be decoded;(b) selecting an image transformation parameter used for obtaining a predicted image, based on the extracted coordinates number data;(c) obtaining the predicted image from the reference picture, based on the selected image transformation parameter and the extracted coordinate point data;(d) obtaining a decompressed differential image by decoding the compressed image signal; and(e) reproducing a reproduced image by summing the predicted image and the decompressed differential image.

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