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Zernike-match
- 对输入图像进行预处理后提取目标轮廓,经过归一化处理得到目标形 状的平移、尺度不变的链状表达,再通过小波变换进行多尺度分析;引入Zernike 矩,利用Zernike 矩的特性,实现小波表达的旋转不变性,解决了小波变换对起始点的依赖。-right to import images from pretreatment profile targets, after processing to be a target shape translation, The scale-invariant
xiaobobianhuanyuyingyong
- 某一直升机齿轮箱上的早期损伤的特征是,在伴随振动信号上产生一个可变周期的非平稳扰动信号。要求按此特征构造一组有物理意义的数据仿真早期故障信号,应用小波变换技术分析故障的特征和发生时刻。-a helicopter gearbox early on the characteristics of the injury, In addition to the vibration signal produced a variable cycle perturbation of non-stationary
Examples-of-wavelet-analysis
- 全文介绍了小波变换的基本理论,并介绍了一些常用的小波函数,它们的主要性质包括紧支集长度、滤波器长度、对称性、消失矩等,都做了简要的说明。在不同的应用场合,各个小波函数各有利弊。-Text describes the basic theory of wavelet transform, and describes some of the commonly used wavelet function, their main properties include compactly supported
Wavelet-of-order
- 采用不同的消失矩的小波函数来分解一个信号,验证了消失矩增大时,它的高频分量中的零原来越多,因此,通常我们都愿意采用消失矩较高的小波函数。-Different vanishing moments of wavelet function to decompose a signal to verify the vanishing moments increases, it is zero in the high-frequency components more original, so often
2222112
- 小波矩特征提取,图像处理方法,再进行小波矩变换。-Wavelet moment feature extraction, image processing method, further wavelet transform moments.