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一种图像编码、解码的方法和装置

申请公布号:CN103096052A

申请号:CN201110345953.8

申请日期:2011.11.04

申请公布日期:2013.05.08

申请人:
华为技术有限公司

发明人:杨海涛;周建同

分类号:H04N7/26(2006.01)I;H04N7/50(2006.01)I

主分类号:H04N7/26(2006.01)I

地址:518129 广东省深圳市龙岗区坂田华为总部办公楼

摘要:本发明实施例提供了一种图像的编码方法,所述编码方法包括:对图像进行预测编码;对经过预测编码的所述图像进行变换编码;使用量化矩阵对变换编码后的所述图像进行量化编码,所述量化矩阵是反映图像量化步长信息的矩阵,所述量化矩阵包括M*N量化矩阵、N*M量化矩阵,所述N*M量化矩阵由所述M*N量化矩阵通过转置得到;对量化编码后的所述图像进行熵编码,对所述M*N量化矩阵编码,生成码流。本发明有效地节省了编码量化矩阵所需的比特数量,提高了压缩效率。

主权项:一种图像的编码方法,其特征在于,所述编码方法包括:对图像进行预测编码;对经过预测编码的所述图像进行变换编码;使用量化矩阵对变换编码后的所述图像进行量化编码,所述量化矩阵是反映图像量化步长信息的矩阵,所述量化矩阵包括M*N量化矩阵、N*M量化矩阵,所述N*M量化矩阵由所述M*N量化矩阵通过转置得到;对量化编码后的所述图像进行熵编码,对所述M*N量化矩阵编码,生成码流。

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