公开(公告)号：US20060048038A1

公开(公告)日：2006-03-02

申请号：US10928448

申请日：2004-08-27

申请人： Jonathan Yedidia ,  Anthony Vetro ,  Ashish Khisti ,  Dmitry Malioutov

发明人： Jonathan Yedidia ,  Anthony Vetro ,  Ashish Khisti ,  Dmitry Malioutov

IPC分类号： H03M13/03

CPC分类号： H03M7/30 ,  H03M13/00 ,  H03M13/03 ,  H03M13/1194 ,  H03M13/19 ,  H03M13/6312

摘要： A method compresses a set of correlated signals by first converting each signal to a sequence of integers, which are further organized as a set of bit-planes. This can be done by signal transformation and quantization. An inverse accumulator is applied to each bit-plane to produce a bit-plane of shifted bits, which are permuted according to a predetermined permutation to produce bit-planes of permuted bits. Each bit-plane of permuted bits is partitioned into a set of blocks of bits. Syndrome bits are generated for each block of bits according to a rate-adaptive base code. Subsequently, the syndrome bits can be decompressed in a decoder to recover the original correlated signals. For each bit-plane of the corresponding signal, a bit probability estimate is generated. Then, the bit-plane is reconstructed using the syndrome bits and the bit probability estimate. The sequence of integers corresponding to all of the bit-planes can then be reconstructed from the bit probability estimates, and the original signal can be recovered from the sequences of integers using an inverse quantization and inverse transform.

摘要翻译： 一种方法通过首先将每个信号转换成整数序列来压缩一组相关信号，该整数序列进一步被组织为一组位平面。 这可以通过信号变换和量化来完成。 反向累加器被施加到每个位平面以产生位移位的位平面，它们根据预定的排列被排列以产生置换位的位平面。 置换位的每个位平面被划分成一组位块。 根据速率自适应基本码为每个位块产生综合位。 随后，可以在解码器中解压缩校正子位以恢复原始的相关信号。 对于相应信号的每个位平面，产生位概率估计。 然后，使用校正子位和位概率估计来重构位平面。 然后可以从比特概率估计中重构对应于所有比特平面的整数序列，并且可以使用逆量化和逆变换从整数序列中恢复原始信号。