Vector quantization image processing apparatus

Details Vector quantization image processing apparatus Vector quantization image processing apparatus

1990-12-22

1992-08-04

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

358133, 358135, 381 36, G06K 900

Patent

active

051366630

ABSTRACT:
A vector quantization image processing apparatus includes a minimum value separation circuit, a normalization circuit, and a first codebook. By separating the minimum value of the inputted vector and normalizing at the maximum value, it is possible to reduce drastically the number of output vectors. Using the position information of the inputted vector, the output vectors in the first codebook are classified to make it possible to search for the optimum output vector at a high speed.

REFERENCES:
patent: 477945 (1989-01-01), Suzuki et al.
patent: 4560977 (1985-12-01), Murakami et al.
patent: 4670851 (1987-06-01), Morakami et al.
patent: 4710812 (1987-12-01), Murakami et al.
"Vector Quantiser of Video Signals"; Electronics Letters, Nov. 11, 1982, vol. 18 No. 23, pp. 1005-1006.

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