发明名称 Digital image compression and decompression
摘要 The apparatus comprises a discrete wavelet transform (DWT) engine, a code block manager, and an entropy encoder. The code block manager comprises at least one controller, which losslessly compresses the transform coefficients and stores them in a code block storage for buffering. The entropy coder comprises at least one entropy encoder, each comprising a decoder for decoding the losslessly compressed transformed coefficients prior to entropy encoding.
申请公布号 US6570510(B2) 申请公布日期 2003.05.27
申请号 US20010003098 申请日期 2001.12.06
申请人 CANON KABUSHIKI KAISHA 发明人 CHEN YU-LING;ANDREW JAMES PHILIP
分类号 G06T9/00;H04N7/26;(IPC1-7):H03M7/34 主分类号 G06T9/00
代理机构 代理人
主权项
地址