最后,对变换系数进行熵编码压缩。
Finally, the transformed coefficients will be compressed effectively with entropy coding.
变换系数采用非均匀标量量化和熵编码。
DCT coefficients were quantized through nonlinear scalar quantization and entropy coding.
然后对变换系数应用量化矩阵进行量化。
Then , the coefficients are quantized by quantization matrix.
测定了油压与气压间的变换系数和油压释放量。
The capacity of oil pressure relief and the conversion factor between oil pressure and gas pressure are measured.
提出了量化mclt变换系数的音频数字水印盲检新算法。
A new audio digital watermarking blind algorithm based on MCLT coefficient quantization is presented.
最后求出了湿热加速老化与大气自然老化之间的时间变换系数。
Finally the time conversing coefficients between accelerated ageing with temperature and humidity and natural ageing in atmosphere are derived.
调用水印嵌入算法,将水印嵌入到变换系数里,得到新的系数;
Use the insert algorithm, embed the watermark message into the , get the new coefficient ;
提出两种处理方法 :即变换系数法和扩展了的联立方程求解法。
The calculation can use two different ways, that is:Transposition Zernike Coefficients Method and Extended Simultaneous Equations Method.
在DCT变换系数的分布模型上,本文提出了一种码率控制的新思路。
Based on the distribution of DCT coefficients, a new rate control idea is proposed in this paper.
以此特征频带的小波变换系数作为声-超声信号特征参数,可分辨出胶接区域的缺陷信号。
The wavelet coefficient of the feature band was regarded as the feature parameter of the Acousto Ultrasonic signal and it can distinguish defects from the adhesively bonded joints.
利用线模电流的小波变换系数进行测距,不仅不受故障电阻的影响,也不受故障起始角的影响。
The location result is not influenced by fault resistance and inception Angle when wavelet transform coefficient of aerial mode current is used in fault location.
利用小波变换系数的模值与信号奇异性指数之间的关系,从调频信号中提取出调制信号的频率。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
具体讨论了变换系数活跃度测量、变换系数融合方法、变换系数验证、帧变换分解深度等问题。
The concrete fusion process, such as activity level measurement, coefficient combination methods, consistency verification and decomposition depth are discussed in detail.
从理论上论证了根据直接线性变换系数采用影像内定向方法进行普通数码相机方位元素解算的不可行性。
It is confirmed that it is not feasible to calculate the orientation elements of common digital camera according to the DLT indexes using image inner direction method.
由于LL子带占据变换系数的大部分能量,提出一种基于邻域系数的梯度的预测编码单独编码LL子带。
Predictive coding based on the grads of neighbor coefficient is proposed to encode LL subband because LL subband occupied a majority of energy of transform coefficient.
基于信号在不同尺度下小波变换系数模不同的变化特征,结合最优梯度估计算法提出了一种边缘检测方法。
Based on different properties of the coefficient modulus of the signal in different scale wavelet transform, conjunction the best estimate of gradient algorithm an edge detecting method is proposed.
本文利用小波变换系数的模的平方值与信号奇异性指数之间的关系,从超声回波信号中提取出了胎儿的心率。
The fetal heart rate can be extracted from the returning signal of ultrasound by way of the connection between the modulus of the wavelet transform coefficient and the singular exponent.
最后,在基于局部余弦变换的分维矢量量化的研究中,对LCT变换系数采用分维矢量量化的方式进行码书设计。
Finally, in split vector quantization based on LCT research, split vector quantization is adopted to quantize LCT transform coefficients and to design the codebook.
该算法将相邻两个细尺度层上的小波变换系数对应相乘,从而增强了信号在突变点处的特征并抑制了噪声的影响。
The algorithm, which multiplies the corresponding wavelet coefficients of adjacent fine scales, enhances the feature of discontinuity point of signals and inhibits the effect of noise signals.
目前的小波去噪绝大多数都是基于阈值决策的方法,而阈值选择往往都是建立在对信号小波变换系数的方差估计上。
The present method for noise reduction with wavelet transform is based on the thresholding method and threshold selection will depend on the estimation of the noise standard deviation.
使用混沌映射将二进制商标的像素在空间区域中进行随机置乱,然后将置乱的信息分块嵌入在图像的DCT变换系数中。
The chaotic mapping enables the logo pixels rearrange randomly in the specified spatial domain, and the mixed bits of the logo were embedded in the image DCT coefficients.
本文的水印方法借助扩频水印的思想,通过量化函数对版权保护图像的小波变换系数进行量化,产生的二值序列作为水印。
This paper borrows the idea from spread spectrum watermark, quantizes the wavelet transform coefficients the copyright protected image to produce a binary sequence, which is just the watermark.
文章对算法进行了详细的理论分析和推导,实验结果进一步验证了用广义高斯分布描述图像小波变换系数统计特性的合理性。
The algorithm is analyzed in detail, and experiment result again shows that the distribution of image wavelet transform coefficients can be well modeled using the generalized Gaussian distribution.
在尽量减少时钟消耗的前提下,此解码器可以解码每个变换块中变换系数的熵编码码流,并将结果按照块扫描顺序并行输出。
While minimizing the use of clock cycles, it could decode the coded stream of transform coefficients in each block and output the decoded coefficients in zigzag scanning order.
以光滑函数的一阶导数作为小波母函数 ,研究了管道泄漏特征信号拐点区间的敏感性 ,突出小波变换系数的局部极值性。
The differential coefficient of smooth function was taken as a mother wavelet for researching the sensitivity segment of inflexion of pipeline leakage signal.
通过理论推导及事例分析证得含平直单边缘图像子块,其DCT变换系数能量并不总是集中分布在与其空间边缘走向垂直的方向上。
It is proved that for a image subblock with a single straight edge, the DCT coefficient. energy compaction orientation and the spatial edge orientation are not always orthogonal.
我们提出基于傅里叶模式估计的二维波前重建算法,利用最小二乘拟合原理,可以计算出待测波前的傅里叶变换系数,从而恢复原始波前。
In this paper a new algorithm based onFourier modal estimate is proposed to reconstruct the original wavefront by use of least-square fitting.
虽然当前对小波变换系数幅值进行编码已有了比较高效的算法,但是现行的小波编码算法对小波变换系数符号的编码并非如同对幅值的编码那么有效。
While efficient algorithms exist for coding the transform coefficient magnitudes, current wavelet image coding algorithms are not as efficient at coding the sign of the transform coefficients.
本文将新的赋初值方法与旧的赋初值方法作了详细的比较,仿真实验结果表明,利用反算得到的仿射变换系数进行赋初值,可以提高效率和测量精度。
Comparison of the new methods with the old ones by simulated images revealed that higher efficient and accuracy could be achieved by introducing affine transform into initial parameter vector.
提出了一种基于矢量运算的新的坐标变换方法,该方法具有不需要计算转换系数矩阵、可逆的特点。
A novel reversible coordinate transform method, need not calculating the transform coefficient matrix, based on vector operation is proposed in this paper.
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