Image code estimation

Details Image code estimation Image code estimation

2007-06-12

2007-06-12

Bella, Matthew C. (Department: 2624)

Image analysis

Image compression or coding

Lossless compression

Reexamination Certificate

active

10633158

ABSTRACT:
Estimation of the code size of variable length encoding of quantized DCT coefficients by summation over histogram bins of products of number of bin members and a code size of an average run of zero coefficients coupled with a representative level from the bin. The estimation provides low-complexity feedback for quantization level adjustment to obtain variable length code size target without actual performance of a quantization level plus variable length encoding.

REFERENCES:
patent: 5901250 (1999-05-01), Ohara
patent: 6614938 (2003-09-01), Yamaguchi et al.
patent: 6658157 (2003-12-01), Satoh et al.
patent: 6711295 (2004-03-01), Nakayama et al.
patent: 6909811 (2005-06-01), Kajiwara et al.

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