Method and device for encoding image data with a...

Details Method and device for encoding image data with a... Method and device for encoding image data with a...

2007-10-18

2011-10-04

Mehta, Bhavesh (Department: 2624)

Image analysis

Image compression or coding

Gray level to binary coding

C341S056000, C345S596000, C358S003060

Reexamination Certificate

active

08031953

ABSTRACT:
An encoding method to encode image data comprising a sequence of blocks with a predetermined compression rate in one pass is disclosed. The blocks are divided into two sets, a first set and a second set. The blocks in the first set are encoded within the sum of an available bit length and a predetermined lending bit length. The blocks are encoded in the second set within the available bit length. A lending bit length is updated when the current bit length is larger than the available bit length. The left bit length is updated when the current bit length is not larger than the available bit length. The left bit length and the lending bit length are adjusted when the current block is in the second set, the lending bit length is positive and the left bit length is larger than a predetermined threshold.

REFERENCES:
patent: 4862167 (1989-08-01), Copeland, III
patent: 5781134 (1998-07-01), Son
patent: 6823069 (2004-11-01), Kitajima et al.

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