发明名称 METHOD AND DEVICE FOR PROCESSING PICTURE
摘要 <p>PURPOSE:To provide a method and a device for processing pictures capable of performing conversion between sequential encoded data and hierarchical encoded data without using the memory of a large capacity or degrading picture quality. CONSTITUTION:A Huffman decoding processing and an inverse quantization processing are performed in a decoding and inverse quantization part 12 and inputtted DCT sequential encoded data are returned to the DCT coefficient of 8X8 and tentatively stored in a DCT coefficient memory A13. A decoded DCT coefficient value is inputted to a DC component selection part 14, a 2X2 selection part 15,a 4X4 selection part 16 and an 8X8 selection part 17, DC components and 2X2, 4X4 and 8X8 matrixes are respectively selected, encoding is respectively performed in encoding parts 18-21 and storage in a hierarchical code memory 22 as the hierarchical encoded data of four hierarchies is performed.</p>
申请公布号 JPH07222149(A) 申请公布日期 1995.08.18
申请号 JP19940010655 申请日期 1994.02.01
申请人 CANON INC 发明人 OSAWA HIDESHI;HIRABAYASHI KOJI
分类号 H04N19/60;G06T9/00;H03M7/30;H04N1/41;H04N19/102;H04N19/115;H04N19/134;H04N19/176;H04N19/18;H04N19/186;H04N19/189;H04N19/196;H04N19/33;H04N19/423;H04N19/426;H04N19/46;H04N19/625;H04N19/70;H04N19/85;H04N19/91;H04N19/93;(IPC1-7):H04N7/30 主分类号 H04N19/60
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