多小波变换兼有对称性、正交性、光滑性和有限支撑等信号处理中的十分重要的性质,特别适用于图像的压缩编码。
Multiwavelet possesses such very important properties in signal processing as orthogonality, symmetry, smoothness, and short support, which is specially applicable to image coding for compression.
提出了一种用于多尺度边缘检测的小波变换滤波器系数的计算方法,并且以具体例子进行了检验,表明了该方法的有效性。
A method of calculating wavelet transformation filter coefficients for multiscale edge detection is given in this paper, and the efficiency of the method is clarified.
基于小波变换的并以效果评价为反馈的图像融合算法,将其用于多聚焦图像融合中,能够一次就得到各个目标都比较清晰的融合图像。
An image fusion algorithm using transform and taking the evaluation of effect as feedback, using the algorithm in multi-focus image fusion, can get a fused image that all targets are more clearer.
在对图像的小波变换原理讨论的基础上,提出了一种较为实用的图像多尺度边缘检测方法,同时对如何抑制噪声的干扰进行了讨论。
Based on the discussion of the theory of wavelet transform of images, a practical multi scale edge detecting method is put forward and the ways to suppress noise interference are discussed.
小波变换具有多分辨率和多尺度特性,特别适合于二维图像信号的处理,目前已应用在静止图像的压缩标准中。
While wavelet transform is suitable in image compression due to its multi-resolution and multi-scale analysis property, and is used in the standards of image compression.
本文提出了一种基于离散二进小波变换的多尺度边缘检测和图像融合的方法,实现了特征级图像融合。
Regarding this, a novel feature level approach to image fusion is proposed based on discrete dyadic wavelet transform for multi-scale image edge detection.
算法所用的小波变换相位信息特征对平坦衰落信道具有衰落不变性,对频率选择性衰落信道也具有很强的抗多径能力。
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
结合过完备小波变换和凸集投影集(POCS)算法,提出了一种对信道差错鲁棒的多描述编码算法。
An error robust multiple description coding algorithm was proposed, which combines the overcomplete wavelet transform and projection onto convex sets (POCS).
利用多尺度小波变换,把管道泄漏产生的负压波信号作为瞬态信号,来识别管道的局部泄漏特征。
Taking the negative pressure wave produced by pipeline leakage as a transient signal, the multi scale wavelet transform can be utilized to identify the pipeline leakage signal in local.
文中研究了简单的图像融合方法、基于多尺度塔形分解的多分辨率图像融合方法和基于小波变换的图像融合方法。
The simple image fusion method, the multiresolution image fusion techniques based on multiscale pyramid decomposition (MPD), and the image fusion method based on wavelet transform are studied.
提出一种基于优化多带复小波变换的MC-CDMA系统,研究了其在多径瑞利衰落下的性能。
We propose a MC-CDMA system based on the optimized multiband complex wavelet transform (MBCWT), investigate the system performance in multipath Rayleigh fading channel.
首先探讨了基于提升方案的整数小波变换,结合线性预测技术,提出了一种机载多光谱遥感图像的无损压缩方法。
A new method combining integer wavelet transform and linear prediction technique for lossless compression of airborne multispectral imagery is proposed in this paper.
研究了基于小波变换的语音去噪问题,在对传统阈值法去噪和语音特性分析基础上,提出一种改进的多阈值法语音信号去噪方法。
By Analysing speech signal and conventional denoising method of threshold, a new mult-threshold based on wavelet transform method of speech signal denoising is proposed.
应用小波变换,推导了多尺度结构动力方程来分析结构动力系统中的损伤识别。
Applying wavelet transform, differential equation of multi-scale structural dynamic was obtained and the parameter recognition of damage identification was analyzed in structural dynamic system.
本文把基于小波变换的多尺度自适应阈值图像边缘检测的新方法应用于交通图像边缘检测。
In this paper, a new method of multi-scale and adaptive thresholds edge detection for image based on wavelet transform was adopted to detect edge of traffic vehicle.
提出了一种自适应斑点滤波算法,它基于小波变换检测图像中的边缘点,根据检测结果结合多视处理实现斑点滤波。
An adaptive speckle filtering algorithm is proposed. It detects image points belonging to edge based on wavelet transform. Speckle are filtered according to detect results and multi-look.
本文基于数学样条理论提出了一种新的多尺度小波变换,通过其模极值或零交叉可以有效地提取信号的特征。
Based on the B-Spline theory, this paper present a new kind of multi-scale wavelet transform. The feature of a signal can be extracted in its maximum module or zero-crossing.
针对同一场景多聚焦图像的融合问题,提出了一种基于小波变换的自适应脉冲耦合神经网络(PCNN)图像融合方法。
Concerning the fusion problem of multi-focus image with the same scene, an algorithm of image fusion based on wavelet transform and adaptive Pulse Coupled Neural Network (PCNN) was proposed.
基于正交二进小波,设计了一个滤波器对图象进行多尺度滤波,得到不同尺度的小波变换。
A filter based on orthonormal wavelet bases is designed to do wavelet transform with images. Different scale image edges can be detected form different scale image wavelet transform.
最后,对小波重构得到的新亮度成分和原始多谱图像的色度和饱和度成分进行IHS反变换,从而得到最终的融合结果图像。
Finally, perform inverse IHS transform to the wavelet reconstructed new intensity component and the hue and saturation components from the original MS image to get the fused image.
结合地震图像噪声的特点,利用多尺度小波变换的优点,提出一种新的自适应小波阈值去噪算法。
Combined with the characteristics of seismic image noise, using multi-scale wavelet transform, presents a new adaptive wavelet threshold denoising algorithm.
研究了基于小波变换的语音去噪问题,在对传统阈值法去噪和语音特性分析基础上,提出一种改进的多阈值法语音信号去噪方法。
This paper introduces the application of wavelet transformation in speech signal denoising, describes in detail the method of soft threshold and hard threshold and points out their disadvantages.
在数字图像小波多分辨率分析理论基础上,采用小波变换方法对高分辨遥感图像的目标地物边缘进行信息增强,然后与多光谱遥感图像进行特征信息融合。
After the wavelet's multi-resolution analysis, a feature fusion approach was adopted to enhance remote sensing image edge and improve the definition and resolving power of the image.
作者利用信号的小波变换在多尺度边沿上的综合特性,提出了一种新的QRS波检测法。
A new adaptive matching filtering algorithm, based upon synthetic characteristics of wavelet transform of signal along margins of various scales for QRS detection, is developed.
由信号小波变换的奇异点在多尺度上的综合表现来表示信号是小波变换引人注意的另一应用领域。
It is an attractive application field for wavelet transform because the signal is expressed by the comprehensive behavior of wavelet transform of singularity spot in multi-dimensional space.
结合这种压缩思想,用基于离散余弦变换和基于离散小波变换的压缩算法,对实用型模块化成像光谱仪多光谱图像进行压缩。
Combining the thought dimensioned above, with discrete cosine transform-based and DWT-based compression algorithms, the OMIS multi-spectral images are compressed.
本文基于小波变换具有多尺度多分辨率分析的优点,提出了在特定的小波变换分频瞬时属性上,利用局部结构熵算法来检测地震数据的局部不连续性。
Local structural entropy measure in frequency division is put forward to detect local discontinuities of seismic data, by the virtue of the instantaneous attributes based on wavelet transform.
针对小波变换多分辨分析(mra)的特点,本文提出一种多尺度分级的自适应模糊权重中值滤波的去噪方法。
According to the feature of the MRA, this paper presents a noise filtering method of adaptive fuzzy threshold for wavelet classification base on multi resolution.
介绍了小波变换在动态估计和数据融合中的应用,给出了一种实时的最优动态多尺度估计和融合算法。
The application of Wavelet in dynamic estimation and data fusion is introduced in this paper; an optimal real-time multiscale estimation and fusion algorithm for dynamic system is given.
介绍了小波变换在动态估计和数据融合中的应用,给出了一种实时的最优动态多尺度估计和融合算法。
The application of Wavelet in dynamic estimation and data fusion is introduced in this paper; an optimal real-time multiscale estimation and fusion algorithm for dynamic system is given.
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