And we use multi-scale wavelet transform to measure the edge of PVC product in Matlab. After comparing these methods, we draw a conclusion: multi-scale wavelet transform is a better method in detecting edge of PVC product.
用多尺度小波变换的方法在Matlab中对PVC型材产品进行边缘检测，并把检测结果与前面几种经典的边缘检测方法进行比较，认为多尺度小波变换边缘检测是一种效果较好的检测方法。
参考来源 - 边缘检测技术在PVC型材产品检测中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Combined with the characteristics of seismic image noise, using multi-scale wavelet transform, presents a new adaptive wavelet threshold denoising algorithm.
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。
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.
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 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.
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。
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