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公开(公告)号:US5054103A
公开(公告)日:1991-10-01
申请号:US248915
申请日:1988-09-22
申请人: Akira Yasuda , Hiroyoshi Yuasa , Satoshi Furukawa , Nobuo Matsuo , Hisataka Fujii , Masami Hisada , Yoshihiko Tokunaga , Tadashi Satake , Hiroshi Hamada , Yoshitaka Morikawa , Nobumoto Yamane
发明人: Akira Yasuda , Hiroyoshi Yuasa , Satoshi Furukawa , Nobuo Matsuo , Hisataka Fujii , Masami Hisada , Yoshihiko Tokunaga , Tadashi Satake , Hiroshi Hamada , Yoshitaka Morikawa , Nobumoto Yamane
CPC分类号: H04N19/423 , H04N19/152 , H04N19/42 , H04N19/61 , H04N19/50
摘要: 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.
摘要翻译: 一种图像编码系统,其执行具有分割原始图像的多个图像的块内的像素值的预测,相对于用于获得变换系数的预测误差信号的离散正弦变换,变换的量化 用于编码量化指标的系数,用于再现变换系数的量化指标的逆量化,再现系数的逆离散正弦变换以再现预测误差信号,以及添加用于再现图像的预测图像元素值 块内的元素值,以将其用于预测要编码的下一级块,由此可以在大小方面将块最小化,同时简化所需的变换操作。