Image encoding/decoding method, apparatus thereof and...

Details Image encoding/decoding method, apparatus thereof and... Image encoding/decoding method, apparatus thereof and...

2007-06-12

2007-06-12

Sherali, Ishrat (Department: 2624)

Image analysis

Image compression or coding

Including details of decompression

C382S253000

Reexamination Certificate

active

10760291

ABSTRACT:
In an image decoding method, a DC image, corresponding to each block mean value per B pixel from encoding data with respect to the HVQ system, is reproduced. A part of the DC image is made a DC nest. Image data of a target block is reproduced by synthesizing, to the DC value of target block, one or more basis vectors selected from DC nests based on the encoding data. The method is improved by setting the lowest n (n−log2B) bits of the DC pixels in each sample to 0, and down-sampling the selected block from the DC nest and calculating the block mean value using the samples.

REFERENCES:
patent: 5757969 (1998-05-01), Kim
patent: 5852682 (1998-12-01), Kim
patent: 5937098 (1999-08-01), Abe
patent: 6477276 (2002-11-01), Inoue et al.
patent: 1104199 (2001-05-01), None
patent: WO 00/02393 (2000-01-01), None
You H, et al., “Improving LIFS Image Coding Scheme Via Gram-Schmidt Orthogonalization”, IEICE Technical Report, 1998, pp. 37-42.
Takahashi T, et al., “A Fast Computation Algorithm for Predicting AC Components of Imagesusing Mean Values of Blocks”, vol. J81-DII, No. 4, Apr. 1998, pp. 778-780.
Huang S-C, et al., “A Contrained Vector Quantization Scheme for Real-Time Codebook Retransmission”, vol. 4, No. 1, Feb. 1, 1994, pp. 1-7.

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