Method for encoding images, and an image coder

Details Method for encoding images, and an image coder Method for encoding images, and an image coder

2005-06-14

2005-06-14

Do, Anh Hong (Department: 2624)

Image analysis

Image compression or coding

Predictive coding

C382S232000, C382S236000, C382S239000

Reexamination Certificate

active

06907142

ABSTRACT:
The invention relates to a method for encoding a digital image, in which method the digital image is divided into blocks (C, L, U, UL, UR). In the method a spatial prediction for a block (C) is performed to reduce the amount of information to be transmitted, wherein at least one prediction method (P1-P13) is defined. In the method a classification is determined for at least one neighbouring block (L, U) of said block (C) to be predicted according to the contents of said neighbouring block (L, U), and a prediction method (P1-P13) is selected for the current block (C) on the basis of at least one said classification.

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Golchin et al., “A Lossless Image Coder with Context Classification, Adaptive Prediction and Adaptive Entropy Coding”, IEEE vol. 5, May 1998, pps. 2545-2548.

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