HVQ compression of data and printing hints

Details HVQ compression of data and printing hints HVQ compression of data and printing hints

1998-06-29

2000-06-20

Tran, Phuoc

Image analysis

Image compression or coding

Quantization

382244, G06K 936, G06K 938, G06K 946

Patent

active

060786965

ABSTRACT:
Printing hints can be efficiently compressed in a system using hierarchical compression (HVQ) by first using HVQ to generate compressed codewords, and then adding the printing hint to the codewords to generate an intermediate form of codeword, before sending this intermediate form to a pattern matching lossless compressor for final compression. Even though the same printing hint may be applied to a number of codewords, the overall compression will be affected very little by the addition of the printing hints since the hints are identical over a large number of codewords in series.

REFERENCES:
patent: 5602589 (1997-02-01), Vishwanath et al.
patent: 5999710 (1999-12-01), Smith et al.

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