DCT

DC coefficients were analogized after DCT transformation, and they were considered to be appropriate embedded places.

首先分析DCT变换后直流系数的特点并确定嵌入位置,然后提出一类根据水印信息量化DCT直流 系数嵌入水印的算法.

Intraocular pressure was measured in each group with GAT and DCT.

各组分别用DCT和GAT测量眼压.

The author also experiences a DCT domain watermarking.

最后,代码实现了一种DCT域的水印算法.

Based on experiments, DCT still hold broad application prospects in the image compression.

实验表明, DCT在图像压缩中仍然有广阔的应用前景.

Two blind watermark algorithms based on HVS in DCT domain are proposed.

提出了DCT变换域上基于人类视觉特性(HVS)的两种盲水印添加方法.

An adaptive image watermarking algorithm based on DCT is proposed here.

提出了一种DCT域自适应图像水印算法.

Block - DCT - based video compression scheme has been used widely in digital video system.

摘要基于分块DCT的视频压缩方法在数字视频系统中得到了广泛的应用.

The resulting data are a list of streamlined DCT coefficients.

由此产生的数据清单,简化DCT系数.

In a 1.5 - liter turbodiesel engine and BMW's twin - clutch DCT transmission is a 51 - hp compact electric motor.

在1.5升柴油涡轮增压发动机和双离合器DCT变速箱之间是一台51马力的小型电动马达.

Algorithm of image watermarking based on DCT had been widely used because of its excellent characteristics.

基于离散余弦变换(DCT)的自适应数字水印算法因其优异的性能而广泛采用.

The paper presents a DCT - based Adaptive watermarking algorithm.

该文提出了一种基于DCT域的自适应水印算法.

During programming of DCT, it is supposed to improve speed using rapid transformation algorithm.

其中在DCT数字 水印的实现入程中,采取快速变换算法实现, 提高运行速度.

In order to eliminate float operation in point DSP, point DCT is replaced by integer transform.

特别是在定点DSP上 采用了整数变换代替浮点DCT, 消除了浮点运算,减少了运算量, 给出了实验结果.

The DCT was used as the main method of image transform coding for a long time.

图像压缩编码长期以来利用离散余弦变换(DCT)作为变换编码的主要技术.

The observation vectors are obtained from the DCT coefficients.

观察向量序列由离散余弦变换(DCT)系数获得.