DCT的例句大全

This paper discusses and analyzes texture coding and motion compensation tools of the MPEG-4 video, especially on the one dimension DCT algorithm, MVFAST and PMVFAST motion prediction algorithms.

本文研究分析了MPEG-4视频的纹理编码、运动估计和运动编码，对一维快速DCT算法、MVFAST和PMVFAST运动搜索算法进行深入研究。

The paper mainly tell about the comparison of DCT and DWT in the image manipulation.

文中主要提出DCT与DWT的比较，以及基于DCT与小波变换在图像中的性能比较。

Motion estimation is one of the most important part of motion compensation/ DCT based hybrid video coding standards which lead to high compression ratio by efficiently reducing temporal redundancy between adjacent frames of video sequence.

运动估计是基于运动补偿/DCT混合编码方法的重要组成部分，运动估计与补偿技术可以有效地去除视频序列相邻帧间存在的时间冗余，极大地提高了编码效率。

The application of MATLAB based DCT in JPEG image compression

基于MATLAB的DCT变换在JPEG图像压缩中的应用

JPEG Image Retrieval Based on the Spatial Distribution of the DCT Coefficients

基于DCT系数空间分布的JPEG图像检索算法

An advantage of wavelet-based Video compression is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in DCT compression.

由小波变换编码实现的视频压缩在具备高压缩比的基础上，仍拥有较高的主观视觉效果，避免了由分块DCT变换引起的方块效应。

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%。

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。

Because the DCT got the extensive application in picture compress, this paper analyzes the JPEG picture format process based on DCT, carry out a kind of data hiding method according to the JPEG image compression.

由于DCT在图像压缩中得到了广泛的应用，本文分析了基于DCT的JPEG图像格式编码流程，实现了一种基于JPEG压缩的数据隐藏算法。

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。

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。

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

An approach is proposed in this paper, face detection by complexional filter, and face recognition using pseudo 2D Hidden Markov Models based on the extraction of 2 D-DCT feature vectors.

本文介绍了利用肤色信息进行人脸检测后，采用基于二维DCT系数的伪二维隐马尔可夫模型（P2D-HMM）进行人脸识别的方法。

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

Based on the skew cyclic convolution distributed algorithm presented by W. Li [ 1], a 2-dimensional 8 × 8 DCT/ IDCT real-time processor utilizing FPGA has been designed, which can be used for high data rate applications.

在W.Li提出的循环斜卷积分布算法〔1〕的基础上，利用FPGA设计可用于高速数据传输设备的二维8×8DCT／IDCT实时处理器。

Analyze a digital watermark algorithm based on DCT, find two leaks, and make improvement on this algorithm.

分析了一套基于DCT变换的数字水印算法，查找出了两个漏洞，并且对原算法作了改进。

The conventional data partitioning algorithm for DCT coefficients is called the spectral separation.

传统的数据分割算法是采用基于DCT系数的频率域分层技术。

Application Study of DCT in the System of Low Light Level Night Vision

离散余弦变换系统在微光夜视系统中的应用研究

An Image Compression Algorithm Based on DCT Coefficients Rearranged By Wavelet Structure

基于DCT系数小波重组的图像压缩算法

Image Compression Algorithm Based on Piecewise Linear Model and DCT

分片线性函数逼近与DCT相结合的图像压缩方法