本文提出了一种基于量化编码技术的语音隐藏算法。
This paper present a novel kind of voice hiding algorithm based on quantization coding.
本文提出了改进的基于对角线相关矢量量化编码算法。
This paper presents a modified diagonal based fast correlation vector quantization algorithm (MDFCVQ).
设计了一种新的线谱频率参数多级矢量量化编码方案。
A new multi-stage vector quantizer (MSVQ) of line spectral frequency parameters is designed.
基于传统的随机相位编码技术,提出了一种新的相息图量化编码方法。
A new phase quantization method of a phase hologram based on conventional random-phase encoding technique is proposed.
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.
本文在研究树形矢量量化的基础上提出了一种改进的树形矢量量化编码算法。
In this paper, an improved treestructured vector quantization algorithm, based on treestructured quantization is introduced.
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.
给出了两种制作方法的对比实验结果,同时就量化编码误差对CGH信噪比的影响进行了理论分析。
In this paper, the comparative experimental results of two methods are given, and the effects of quantizing and coding errors on the signal-to-noise ratio of CGH are also analyzed theoretically.
所做工作主要有两方面:一是矢量量化编码中的格型矢量量化,另一个是梅花型方向滤波器的提升实现。
The work can be mainly divided into two aspects: lattice vector quantization in vector quantization coding for images and the lifting realization of the quincunx directional filter banks.
首先确定初始阈值,并构造小波系数的关系矩阵,然后结合关系矩阵对高频子带系数进行逐次逼近量化编码。
Finally, the initial threshold is identified and relation matrix is constructed, and the wavelet coefficients of the high frequency subbands are encoded progressively by using relation matrix.
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.
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.
采用特殊矢量量化编码,叫作小波树矢量量化(WTVQ)编码对每个谱象数据进行压缩,获得较高的压缩性能。
Then a special Vector Quantization, called Wavelet Tree Vector Quantization (WTVQ), is designed to compress the every spectral image data, and a higher compression performance is obtained.
对经典DCT变换和整数DCT变换进行研究,并把它们和有限状态矢量量化编码算法相结合,提高了对图像的压缩性能。
Combined with FSVQ algorithm, the traditional DCT transform and integer DCT transform are used to improve the performance of image compression.
误差图像进行分形矢量量化编码时,使用设计的自适应二维维纳数字滤波器,对收缩的均值图像进行滤波后,可构造好的码书。
When coding the erroneous image by fractal vector quantization, a self-adaptive 2-d wiener digital filter to filtrate the contracted mean value image, which can result into a good quality codebook.
针对标量量化压缩比小而向量量化压缩速度慢、图像复原效果不理想等弱点,提出了基于小波变换的分类量化图像编码算法(简称“分类量化编码”)。
To improve the compression ratio, image quality and coding efficiency, an image coding algorithm based on wavelet transform and scalar vector quantization is presented.
该方法基于率失真曲线的精确理论模型,对小波分解后的不同子带提供最优的动态比特分配从而实现了小波系数的自适应量化编码,最后还实现了码率控制。
It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder.
单片机实时完成量化控制。实验中通过串行通信接口输出编码系统的控制结果。
The single chip processor accomplishes quantify control in real time, the coding system's controlling results is outputted through the serial interface port.
首先,采用改进的模拟退火算法设计语音编码参数矢量量化码本。
First, the algorithm is used to design the codebook of the speech coding parameters.
在图像信息的编码过程中,由于量化精度不高造成高频成分的损失导致图像不清晰。
Image codec process easily causes blur in the decoded image because of that the quantization accuracy is not high enough and part of the high frequencies is lost.
编码器比较一次又一次的证明了,没有自适应量化的编码器根本无法竞争。
Encoder comparisons have showed over and over that encoders without adaptive quantization simply cannot compete.
作者在该文中提出了一种不增加量化噪声的快速编码算法。
In this paper, a fast encoding algorithm that does not enhance quantization noise is introduced.
图像的压缩包括变换、量化和编码。
The image compression includes transform of image, quantization and encoding.
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.
目前,小波变换、矢量量化以及嵌入式编码已经成为图像压缩的主要技术及研究热点,越来越受到重视。
Nowadays, wavelet transform, vector quantization and embedded encoding has been the primary technique and study focus for image compression, to which people attach their more importance.
针对边缘匹配矢量量化图像编码方法存在的出轨现象,提出一种引入支持向量机的方法。
To tackle the derailment phenomenon consisting in side-match vector quantization image coding technology, we introduced support vector machine.
本文提出了一种适用于低速率语音编码系统的基音周期量化算法。
This paper proposed a pitch quantization method for low bit-rate speech coding systems.
为降低比特率,本文提出四种有效的BTC算法,以降低对每个图像块的两个量化电平和位平面编码所需的比特数。
In order to reduce the bit rate, on the one hand, simple look-up-table methods are presented to code the BTC quantized data of a block.
因此本文使用MSSVQ作为矢量量化技术来进行编码。
So this paper USES MSSVQ as the vector quantization technique for coding.
因此本文使用MSSVQ作为矢量量化技术来进行编码。
So this paper USES MSSVQ as the vector quantization technique for coding.
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