然后对矢量量化形成的码书分块加密；
Then the codebook that is generated by vector quantization is blocked and encrypted;
LBG算法是矢量量化码书设计的经典算法。
LBG algorithm is a classical algorithm for vector quantization.
提出了混沌映射与矢量码书相结合的加密算法。
In this paper, an image encryption algorithm based on chaotic mapping and vector quantization is presented.
提出了一种针对码书优化的图像矢量量化算法。
An optimized VQ codebook design algorithm of image compression is introduced in this paper.
提出了一种矢量量化码书设计及编码的快速算法。
A fast algorithm of encoding and codebook designing for vector quantization is proposed.
矢量量化码书设计本质是搜索训练矢量的最佳分类。
VQ codebook design is essentially a classification of training vectors.
码书扩大造成每一子集最小失真减小从而提高了量化性能。
The expansion of codebook minishes the minimal distortion in every subset and improves the quantization performance.
对于边缘区域，用较大的码书去量化当前输入矢量以保证图像质量。
For edge areas, the input vectors are quantized with large-size codebook to maintain the image quality.
最后，针对LBG算法对初始码书敏感这一缺陷给出了一些改进方向。
At last, some improved methods aimed at the defects of the sensitivity to the initial codebook of LBG algorithm are presented in the paper.
最后利用得到的块码书模型检测运动目标，并且同时更新此码书模型。
Lastly the moving object can be extracted through the model and update the codebook model.
用LBG算法产生的码书，码书中的码向量在码书中的排列是无序的。
LBG vector quantization algorithm is used to create codebook traditionally, but the sequence is not in order.
本文给出了一种新的图像矢量量化码书的优化设计方法——粒子对算法。
This paper presents a new strategy of particle-pair(PP) for vector quantization(VQ) in image coding.
码书大小和矢量维数越大，穷尽搜索矢量量化编码的计算复杂度就越高。
The larger the codebook size or the vector dimension is, the higher the computational complexity of the full-search VQ is.
因此，如何获得全局最优的码书成为矢量量化算法设计的主要研究问题之一。
So, how to achieve global optimal codebook become the one of key problems of designing VQ algorithm.
本文提出了基于改进禁止搜索(TS)算法的矢量量化(VQ)码书设计方法。
Codebook design algorithms based on tabu search (TS) approach are presented for vector quantization (VQ).
新算法采用分类码书设计和残留编码，大大提高了图像的客观指标和主观视觉效果。
The new algorithm, including the sorting codebook design and the remains coding, greatly improves the objective level and the subjective visual impression.
本文研究运用矢量码书和动态内插限制的方法解决语音生成逆向解的非唯一性问题。
This paper presents a method of using codebook and dynamic interpolation constraint to solve the inverse speech problem.
AAC的码率失真控制算法需要多次检索霍夫曼码书以获得当前状态比特消耗的参考值。
Rate-distortion control algorithm in MPEG-4 AAC(Advanced Audio Coding) needs to search Huffman code books many times to obtain the reference number of the current consumed bits.
为有效提高矢量量化码书的性能和学习效率，需进一步改进自组织神经网络的学习算法。
Self-organizing neural network is a very efficient method for pattern recognition and vector quantization(VQ).
结果表明，基于禁止搜索的两种码书设计方案所生成的码书性能都比LBG算法有明显提高。
Tests show that the proposed two algorithms based on the tabu search approach can greatly improve the codebook performance compared to the conventional LBG algorithm.
本文我们提出了一种新的调节此参数的方法，将其与码书半径的累积概率密度函数联系起来。
In this thesis, we propose a new method for tuning this key parameter, which is related to the cumulative probability density function of the radius of the codebook shell.
由于该方法把分形和矢量量化编码结合起来，因此解码时只需查找码书，并仅进行对比度变换。
This method connects fractal and vector quantization coding together, during the process of decoding, the only need to check the codebook and to transform the contrast.
最后通过判断当前的像素值是否可以划归于背景码书以区分背景点和前景点，同时做相应的更新。
The image can be partitioned to foreground and background according to the background codebook, and in the meanwhile codebook is updated correspondingly.
矢量量化的初始码书设计是很重要的，影响或决定着其后码书形成算法的迭代次数和最终的码书质量。
In vector quantization, the initial codebook design influences or determines The Times of iteration of codebook training method and the quality of codebook. So it is very important for VQ codebook.
使用覆盖率—准确率曲线评价的实验结果证明，所提出的码书模型可以有效检测复杂背景下的运动物体。
Qualitative and quantitative experiments demonstrate that the proposed codebook model can effectively detect moving object under complex dynamic background.
高斯·马尔科夫序列实验表明，该算法较好地实现了全局最优，并有助于克服对初始码书较为敏感的缺点。
The experiments of Gauss Markov sequences show that the algorithm has better achieved the global optimal point and helps overcome the shortcoming of the sensitivity to initial codebook.
以均匀颜色空间的距离作失真测度，以矢量量化的码书设置颜色寄存的颜色值。实验证明，效果令人满意。
The distance of the uniform color space is used as the distortion measure, and the codebook of vector quantization is used to set the color table register, which shows good results.
文中还介绍了利用改进的码书对SAR原始数据进行量化编码的应用，得到了较好的效果，并给出了实验结果。
We introduce the SAR raw data compression coding application with the improved code book and get well experiment effect.
本文提出一种粒子群分组并行寻优码书设计算法，应用于图像的矢量量化编码中，它可以得到性能较好的码书。
This paper presents swarm optimization algorithm based on a pair of parallel particles, which can be used to get a good codebook in the vector quantization of image coding.
本文提出一种粒子群分组并行寻优码书设计算法，应用于图像的矢量量化编码中，它可以得到性能较好的码书。
This paper presents swarm optimization algorithm based on a pair of parallel particles, which can be used to get a good codebook in the vector quantization of image coding.
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