Picture encoding device, picture encoding method, picture decoding device, picture decoding method, and recording medium
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United States of America Patent
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Jan 15, 2002
Issued Date -
N/A
app pub date -
May 2, 2000
filing date -
Dec 26, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A compressed picture signal having a number of pixels smaller than the number of pixels of an original picture signal is generated, and plural patterns of prediction pixels are formed by using neighboring pixels of a notable pixel which is one of pixels constituting the compressed picture signal. The original picture signal is predicted from each of the plural patterns of prediction pixels and a predetermined prediction coefficient, and each of prediction values with respect to the plural patterns of prediction pixels is outputted. A prediction error of each of the prediction values of the plural patterns of prediction pixels with respect to the original picture signal is calculated, and a pattern code corresponding to a prediction pixel with which a minimum prediction error is obtained, among the plural patterns of prediction pixels, is appended to the pixel value of the notable pixel.
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