Parameter selection in data compression and decompression

Details Parameter selection in data compression and decompression Parameter selection in data compression and decompression

2005-12-13

2005-12-13

Chen, Wenpeng (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S239000, C358S426010, C375S240020

Reexamination Certificate

active

06975773

ABSTRACT:
Apparatus and method for selecting an appropriate parameter at decompression are disclosed. In particular, when adaptive block size discrete cosine transform compression is used to compress data, different combinations of sub-blocks can be generated. To decompress the different combinations of sub-blocks, the appropriate parameter is selected based on block size assignment information and the address of data in the data block.

REFERENCES:
patent: 5107345 (1992-04-01), Lee
patent: 5241395 (1993-08-01), Chen
patent: 5452104 (1995-09-01), Lee
patent: 5764807 (1998-06-01), Pearlman et al.
patent: 0135673 (2001-05-01), None
patent: 0141443 (2001-06-01), None
patent: 0156298 (2001-08-01), None

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