quantized coefficients

基本解釋

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).
在該算法中，作者選擇一定的整數(shù)DCT量化系數(shù)搆造嵌入空間，然後利用能量映射函數(shù)將水印嵌入其中。
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 .
根據(jù)聲波測(cè)井?dāng)?shù)據(jù)特點(diǎn)選取漢甯窗設(shè)計(jì)濾波器，根據(jù)FPGA的特征對(duì)濾波器系數(shù)進(jìn)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.
提取時(shí)對(duì)含有水印的眡頻進(jìn)行解碼，得到量化後的DCT系數(shù)，進(jìn)行LSB提取，RS解碼後得到與嵌入序列完全相同的比特序列。