DCT

The author also experiences a DCT domain watermarking.

最后,代码实现了一种DCT域的水印算法.

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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.

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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.

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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.

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The delivering of picture information will code with the long-lost cosine ( DCT).

在图像信息的传递中，将用到离散余弦（DCT）编码。

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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.

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The Selection of Optimal Controls Parameter for Given Compression Ratio in Fractal Coding with DCT Complement

有DCT补偿的分形编码中最优压缩比控制参数的选择

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In DCT domain, exist AC and DC, the traditional means is to hide watermarking in the AC components, especially in the middle-frequency coefficients.

在DCT域中，存在AC，DC两个分量，通常在图像加密过程中，将水印嵌入AC分量，特别是中频系数上。

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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.

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Dual-clutch automatic transmission is the focus of the transmission field. The key technologies of study DCT system is double clutch control.

当前变速器领域的焦点是双离合自动变速器（DCT），研究它的关键技术是双离合器的控制系统。

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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.

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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.

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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.

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Finally, the simulation experiments are showed that compared with JPEG algorithm the new method reduces 15.54% of the code rate and saves 8.3% of operation time. The DCT compression coding system with vector quantization has been studied here.

最后，经过仿真实验证明，与JPEG编码结果比较，在保证几何精度和图像视觉质量不衰减情况下，新的算法减少码率15.54%和运算时间8.3%。

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A new class of paralled DCT algorithms based on multimedia technique

一种基于多媒体技术的新型并行DCT算法

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Generalization algorithm of steganography based on DCT domain

可泛化的基于DCT域的隐写术算法

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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.

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Based on the Discrete Cosine Transform ( DCT) coefficient histogram difference sequences of JPEG images, a new steganalytic method was proposed to realize the steganalysis of JPEG MB2.

基于JPEG图像的离散余弦变换（DCT）系数直方图差值序列，提出一种新的检测JPEG MB2隐写术的方法。

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

各组分别用DCT和GAT测量眼压.

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Now, a large number of images are compressed by the JPEG format. Hence, the image decompression of inverse DCT is needed to retrieval these images, and then extract feature vectors in the pixel domain to retrieval images.

现在许多图像采用JPEG格式存储，检索这些图像通常要先解压缩，然后提取基于像素域的特征矢量进行图像检索。

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The Study of Still Image Compression Methods Based on DCT& WT

基于DCT与WT的静态图像压缩方法研究

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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.

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DCT Arithmetic and Its Comparison with Wavelet Transform Coding in Image Manipulation

DCT算法及其与小波编码在图像处理中的比较

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The resulting data are a list of streamlined DCT coefficients.

由此产生的数据清单,简化DCT系数.

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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.

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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.

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In this thesis, an algorithm to detect blue screen matting and compositing based on DCT coefficients statistics features is proposed.

本文提出了一种基于DCT系数统计特征的蓝屏抠像合成检测算法。

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Up to now, some mature technologies have been developed in the area of image compression, such as DCT ( Discrete Cosine Transform) and Huffman Code.

到目前为止，图像压缩的研究己经产生了一些成熟的技术，如DCT变换，霍夫曼编码等。

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Among these, the method of searching tables takes place of general DCT method for rasing the computation speed;

其中，DCT变换部分采用查表法代替常规DCT算法，大大提高了其运算速度；

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Investigation and analysis of IOP in myopia population using DCT

近视眼患者动态轮廓眼压的调查分析

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