quantized coefficients

基本解释

In the proposed scheme, authors select a part of Integer DCT quantized coefficients to construct the embedded space and embed the watermark into it by using Energy Mapping Function(EMF).
在该算法中，作者选择一定的整数DCT量化系数构造嵌入空间，然后利用能量映射函数将水印嵌入其中。
According to the data characteristics of acoustic logging, Hanning window was selected to design the filter. The filter coefficients were quantized following the FPGA's characteristics .
根据声波测井数据特点选取汉宁窗设计滤波器，根据FPGA的特征对滤波器系数进行了量化。
When extracting the watermark, decode the containing video to get the quantized DCT coefficients, get the watermark by using LSB, and RS decoded to get the same sequence as the embedded bit sequence.
提取时对含有水印的视频进行解码，得到量化后的DCT系数，进行LSB提取，RS解码后得到与嵌入序列完全相同的比特序列。