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Reduction of noise generated by a digital picture coder/decoder which operates in blocks
Reduction of noise generated by a digital picture coder/decoder which operates in blocks
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机译:减少由以块为单位工作的数字图片编码器/解码器产生的噪声
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摘要
A picture signal processing method and apparatus in which the block distortion or the mosquito noise generated on picture compression/expansion using block encoding or the like is removed and picture quality correction such as contour enhancement is carried out effectively. Compression-encoded picture signals are expanded and decoded by a MPEG decoder 106 and the decoded picture signals are sent to a noise reducing circuit 107. The noise reducing circuit 107 reduces the noise by block distortion reduction or by field recursive type noise reduction. The resulting noise-reduced or noise-freed picture signals are sent to a picture quality correction circuit 108, which then performs picture quality correction, such as contour enhancement.
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