从小波分解技术的强大的去噪功能出发,提出了基于小波技术的监测数据前处理方法。
Wavelet decomposition technology has powerful removing noise function, and the preoperative methods based on the wavelet technology is applied for the monitoring data.
在实际检测中,磁记忆信号属于随机信号、不具有平稳性,宜采用小波技术分析磁记忆信号。
In actual testing, magnetic memory signal belongs to random signal without stationarity, adjusting adopting wavelet technique to analyze magnetic memory signal.
应用实例表明,小波技术与传统信号处理方法相结合可以更有效地进行声源检测与故障诊断。
The applying instance shows that the combining of traditional signal processing methods with wavelet conversion theory is more effective in the noise sources detection and fault diagnosis.
小波去噪声技术应用于计算机骨龄评价系统中的指骨识别能提高骨龄评价的准确度。
Noise reduction with wavelet analysis used in phalange recognition of computerized skeletal age assessment system can enhance the precision of skeletal age assessment.
小波变换技术具有很强的信号分离能力容易把随机噪声从信号中分离出来,从而提高信号的信噪比。
Wavelet Transfer (WT) is a powerful technique in signal separation. It is very easy for WT to improve the signal-to-noise (SNR) by separating the random noise and useful signal.
采用数字图像处理技术,应用小波变换方法,实现了轮胎图像中空心型号文字的提取,可作为轮胎分检自动化的一个重要控制信息。
Using technology of digit image processing and method of wavelet transform, in order to detect the edge of number of tire type, it is important information for tire detecting automation.
小波变换技术以其良好的空间—频率局部特性和与人眼视觉特性相符的变换机制,在图像编码领域得到了广泛的应用和研究。
The technique of wavelet transform has been applied and studied in the image coding field extensively because of its good feature of time-frequency and human visual system.
论文讨论了分形与混沌、分形与小波之间的关系,简要介绍了分形在数字图像水印技术中的应用。
In the dissertation, author discusses the relations of fractal with chaos and of fractal with wavelet, and introduces briefly the application of fractal in digital image watermarking techniques.
针对电机振动信号的频谱特点,提出基于小波神经网络技术的电机故障模式识别与诊断的新方法。
A novel method of pattern recognition and fault diagnosis in electrical machine based on the wavelet-neural network is proposed according to the frequency spectrum characteristics of vibration signal.
研究了基于整数到整数形状自适应离散小波变换对任意形状感兴趣区域的有损和无损编码技术。
Arbitrary shape region of interest lossily and losslessly coding technology based on integer-to-integer shape adaptive discrete wavelet transform has also been studied.
针对视觉系统处理速度慢的问题,利用光电信息技术设计出基于光学小波变换的机器人视觉传感器。
A robot vision system based on optical wavelet transform is designed by means of photoelectric information techniques in accordance with slow processing speed of vision system.
本文对目前流行的各种方法进行了归类,主要思想有:边缘保持、矢量量化、小波变换、插值核、分形技术以及边缘模型。
And this paper classifies the popular methods, the main ideas are as follows: edge preserving, vector quantization, wavelet transform, interpolation kernel, Fractal technology and edge model.
本文对基于对象的小波域视频细粒度可分级编码中的两个关键问题,即视频对象编码和运动估计技术进行了深入研究。
This paper makes a deep insight into two problems of object-based fine granular scalable video coding in the wavelet domain, namely video object coding and motion estimation techniques.
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.
该技术在水印嵌入时,由混沌系统生成水印序列,并在离散小波变换的低频子带上嵌入水印,保证了水印的鲁棒性。
While embedding watermarking, the watermarking sequences are produced by the chaos system, and are embedded into the low frequent coefficient of DWT domain to guarantee the robustness of watermarking.
提出了一种结合人类视觉系统的数字图像盲水印技术,它利用小波变化和人类视觉系统的共通点,进行水印的嵌入。
An algorithm of digitalimage blind watermarking technique combined with human visual system(HVS) is introduced, this algorithm uses common aspect between HVS and wavelet to embed watermarking.
文章介绍了基于小波变换的虚拟场景构造技术,并实现了一个对柱面全景图、立方体全景图和球面全景图的实时漫游系统。
The article presents virtual scene building technology based on wavelet transform, and implements a real-time roaming system for cylinder, cubic and sphere panorama.
文中重点研究了数字高程模型的小波变换简化以及构建多分辨率数字模型中LOD简化技术并进行试验应用。
In the paper focal point was put on the model simplification with wavelet transform and the construction of multi-resolution model with LOD technology and at the same time trial was applied.
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.
研究小波分析在机械工程信号处理中的应用,提出通过二进小波变换检测信号奇异点的实用技术。
The application of wavelet theory in signal processing in mechanical engineering field is also discussed and a practical technique for signal singularity detection is proposed.
并指出基于小波变换的SPIHT编码算法具有对水下图像低比特率编码性能好、可以与纠错技术结合使用等特点。
Our research has showed that SPIHT performs better than JPEG while the underwater images are coded in low bit rate. SPIHT also has a good progressive transmission characteristic.
为保证电力系统中待传递数据的安全性,研究了利用一种基于小波的数字水印技术把电力系统中的传输数据隐藏起来。
To ensure the secure data delivery in power system, a method of concealing the data by a kind of wavelet-based digital watermark technique is studied.
与传统的JPEG标准相比,JPEG2000标准采用了离散小波变换、内嵌编码等技术,从而具有了渐进传输、感兴趣区域压缩、抗误码等新特性。
Compared with the JPEG standard, JPEG2000 standard adopts some different compress technique, such as the Discrete Wavelet Transform, Embedded Coding and so on.
研究了相干斑噪声抑制技术,提出了(1)增强小波软阈值相干斑噪声抑制方法。
This paper studies the technology of speckle noise suppressing and proposes two new methods. The first one is to enhance wavelet soft-threshold for speckle noise suppressing (1).
信号处理的先进技术,如离散小波变换(DWT)和纠正多分辨傅立叶变换(MFT中)是适用于调查的振动和电流瞬变。
Advanced signal processing techniques such as discrete wavelet transform (DWT) and a corrected multiresolution Fourier transform (MFT) are applied to investigate the vibration and current transients.
图像分解和图像增强都是图像处理中关键的预处理技术,而围绕小波变换在这两方面的图像处理算法一直是人们研究的热点。
Image decomposition and image enhancement are the key technology of image processing. The algorithms of image processing based on wavelet transform are a hot topic.
应用小波变换对腹部MRI进行图像压缩与平滑化处理,应用边缘检测技术进行边缘数据与肝脏特征值的提取,并结合医师确定的肝脏区域进行图像分割效果的评价。
Wavelet transforms are used to compress image and smooth edge of liver region from abdomen MRI. The results of image segmentation are evaluated based on the liver region determined by doctor.
本文主要研究如何利用图像小波变换后系数间的相关性实现小波系数的分级编码和传输,从而实现图像的渐近传输技术。
This paper mainly study how to realize wavelet coefficient layered coding and transmission and image data progressive transmission using the correlation of the transformed image.
基于随机分形理论,采用分数布朗运动模型,应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
基于随机分形理论,采用分数布朗运动模型,应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
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