| 小波理论及其在影像边缘检测中的应用 |
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| 引用本文： | 邵巨良,李德仁.小波理论及其在影像边缘检测中的应用[J].测绘学报,1993,22(2):111-120. |
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| 作者姓名： | 邵巨良 李德仁 |
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| 作者单位： | 武汉测绘科技大学
(邵巨良)，武汉测绘科技大学(李德仁) |
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| 摘 要： |
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| 关 键 词： | 小波 多级分辨率 边缘提取 影像 |
WAVELET AND ITS APPLICATION TOIMAGE EDGE DETECTION |
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| Shao Juliang. Li Deren.WAVELET AND ITS APPLICATION TOIMAGE EDGE DETECTION[J].Acta Geodaetica et Cartographica Sinica,1993,22(2):111-120. |
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| Authors: | Shao Juliang Li Deren |
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| Institution: | Wuhan Technical University of Surveying and Mapping |
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| Abstract: | :
The image pyramid with multi-level resolution is needed for image matching, a mod ern GIS should have the multiscale function, and an image analysis system should effe ctively analyse the multiresolution information content of images. Therefore, the devel opment of new theory which concentrates on the muUiresolution signals is necessary. The wavelet theory is nowadays such a greatly potential theory. For this reason, we introduce the basic concepts and properties of the wavelet theory. In this paper, the me thods using Gaussian and Cubic splines functions as the scaling function to generate wavelets are described for image edge detection from digital airphotographys. Comparing with the operators of Zero crossing and Sobel, new approach posses many advantages. This theory is valuable for pattern recognition, computer vision, image analysis, the re solutions of partial differential equations and the analysis of fractals. |
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| Keywords: | :Wavelet Wavelet Transform Multiresolution Multiscale Representation Edge Detection Scaling Function |
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