Image analysis – Image compression or coding
Patent
1994-02-14
1995-09-05
Chin, Stephen
Image analysis
Image compression or coding
348390, G06K 936, G06K 946
Patent
active
054486424
ABSTRACT:
A method of lossless data compression for efficient coding of an electronic signal of information sources of very low information rate is disclosed. In this method, S represents a non-negative source symbol set, {s.sub.0, s.sub.1, s.sub.2, . . . s.sub.N-1 } of N symbols with s.sub.i =i. The difference between binary digital data is mapped into symbol set S. Consecutive symbols in symbol set S are then paired into a new symbol set .GAMMA. which defines a non-negative symbol set containing the symbols {.gamma..sub.m } obtained as the extension of the original symbol set S. These pairs are then mapped into a comma code which is defined as a coding scheme in which every codeword is terminated with the same comma pattern, such as a 1. This allows a direct coding and decoding of the n-bit positive integer binary digital data differences without the use of codebooks.
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Chin Stephen
Marchant Robert D.
May Timothy J.
Miller Guy M.
The United States of America as represented by the Administrator
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