查询词典 quantization

In this paper, a text-dependent speaker recognition system is set up based on Vector Quantization.

采用矢量量化方法建立了一个文本相关的说话人识别系统。

After the analysis of the algorithms model of MPEG-2 AAC, the thesis optimizes some blocks with great computation of Psychoacoustic Model, Filter banks and Quantization coding, etc. It omits some function blocks which have much computation and avail little to the gain of coding, for example, prediction in time domain, TNS, etc. It also adopts some fast algorithms to reconstruct some model for the reason of real time characteristic.

在对 MPEG-2 AAC算法模型进行分析之后，对心理声学模型，滤波器组和量化编码模块等计算量较大的模块进行优化，同时也省略了部分运算量大但对编码效果增益不明显的几个模块，如时域预测和 TNS 等，并使用了一些快速计算技术对算法模型进行实时化改造。

First,it allots bit date to every frame in advance according to possessive rate of buffer ,and then distribute different quantization para...

它首先在总体上根据缓存器的占有率给每帧预分配比特数，然后再根据具体细节给予不同的量化参数。

First,it allots bit date to every frame in advance according to possessive rate of buffer ,and then distribute different quantization parameters according conctete detail.

它首先在总体上根据缓存器的占有率给每帧预分配比特数，然后再根据具体细节给予不同的量化参数。

Three commixed still image coding algorithms are proposed based on them and such ideas as: zerotree coding, WMSE (which is based on mankind visual characteristics), classified vector quantization with different vectorstructures and classification methods.

首先回顾了矢量量化的基本原理和一般算法，对小波变换结合矢量量化技术的特点作出分析和总结。

These problems together with the infinities in the quantization of gravitational field indicate strongly that there must be a rigorous examination of Einstein's geometrized theory of gravitation, especially a careful investigation of the role of vacuum in gravitational interaction.

另一方面，当前天体物理学和宇宙学中面临两个扑溯迷离的重大问题，即与星系转动曲线异常和宇宙加速膨胀等一系列问题相联系的暗物质、暗能量问题。

Now, the electromagnetic, the weak and the strong forces have already been unified in a quantum framework, whereas the quantization of gravitational field is still faced with the vital problem of infinities after more than 70 years of hard attempts.

爱因斯坦本人做了开创性的工作，即试图建立一个将引力和电磁力纳入同一理论框架的统一场论，但是虽然尽了后半生漫长而艰辛的努力，终未能成功。

The modulator quantizes the input signal and move the low frequency inband quantization noise to high frequency.

调制器完成对输入信号的量化并对量化噪声进行整形，将有用信号频带内的低频噪声搬移至高频段。

This algorithm quantizes the wavelet coefficients to different region according to the watermarking bit to be embedded, and introduce the features of human auditory system to gain the proper quantization step. In the detection, it uses threshold judgment to achieve blind detection.

该算法仍在小波域上进行，根据不同的水印信息将小波系数量化到不同的区间，并根据心理声学模型的一个结论讨论了量化步长的选择，检测时用门限判别实现了盲检测。

The original carrier image is splitted into sub-blocks, and each sub-blocks is transformed by DCT to get the DCT frequencies of the sub-image. Then according to the mask charachers of the visual model of Waston, the algorithm quantizes the frequencies by DCT transform of each sub-blocks. The locations embeded the watermarks are selected by the quantization steps which calculated based on the Waston's visiual model.

该水印算法首先对原始载体图像进行分块，再分别对各子块进行DCT变换而获得各子块的DCT变换系数；然后根据Waston视觉感知模型对各子块的DCT变换系数进行量化，通过Waston视觉模型来计算量化步长，以量化步长来选择水印的嵌入位置。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。