发明名称 Förfarande för kompressering av en bild
摘要 The invention relates to a method in image processing, wherein an image in digital form is in coding phase compressed, quantized by a quantization matrix (QL, QC) and coded by a coding matrix (HL1, HK1, HL2), wherein one or more data frames are formed. In a decoding phase decoding, dequantization and decompression is carried out to the information comprised in the data frame. One or more matrices (QL, QC, HL1, HK1, HL2) used in the coding phase are left out of the data frame, wherein the corresponding matrix is stored into coding device (8) performing the decoding phase. <IMAGE>
申请公布号 FI974244(A) 申请公布日期 1999.05.15
申请号 FI19970004244 申请日期 1997.11.14
申请人 NOKIA MOBILE PHONES LTD 发明人 LATVA-AHO, ANTTI
分类号 G06T9/00;H04N7/30;(IPC1-7):G06T 主分类号 G06T9/00
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