发明名称 ENCODING DEVICE, DECODING DEVICE, AND METHODS THEREFOR
摘要 Disclosed is an encoding device that improves the quality of a decoded signal in a hierarchical coding (scalable coding) method, wherein a band to be quantized is selected for every level (layer). The encoding device (101) is equipped with a second layer encoding unit (205) that selects a first band to be quantized of a first input signal from among a plurality of sub-bands, and that generates second layer encoding information containing first band information of said band; a second layer decoding unit (206) that generates a first decoded signal using the second layer encoding information; an addition unit (207) that generates a second input signal using the first input signal and the first decoded signal; and a third layer encoding unit (208) that selects a second band to be quantized of the second input signal using the first decoded signal, and that generates third layer encoding information.
申请公布号 US2012245931(A1) 申请公布日期 2012.09.27
申请号 US201013501389 申请日期 2010.10.13
申请人 YAMANASHI TOMOFUMI;MORII TOSHIYUKI;PANASONIC CORPORATION 发明人 YAMANASHI TOMOFUMI;MORII TOSHIYUKI
分类号 G10L19/02;G10L19/24 主分类号 G10L19/02
代理机构 代理人
主权项
地址