Image analysis – Histogram processing – For setting a threshold
Patent
1988-09-22
1991-10-01
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
3582612, 364725, 382 43, G06K 936
Patent
active
050541030
ABSTRACT:
A picture encoding system which performs a prediction of picture element values within a block having a plurality of picture elements into which an original picture is divided, a discrete sine transform with respect to prediction error signals for obtaining a transform coefficient, a quantization of the transform coefficient for encoding quantized indexes, an inverse quantization of the quantized indexes for reproduction of the transform coefficient, an inverse discrete sine transform of the reproduced coefficient to reproduce the prediction error signal, and an addition thereto of the predicted picture element value for reproducing the picture element values within the block to employ them in predicting a next stage block to be encoded, whereby the block can be minimized in size while simplifying required transform operation.
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Fujii Hisataka
Furukawa Satoshi
Hamada Hiroshi
Hisada Masami
Matsuo Nobuo
Mancuso Joseph
Matsushita Electric & Works Ltd.
Moore David K.
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