The technology of edge detection plays an important role in image measurement, for it is the core content of image segmentation which is the key linkage between image analysis and image processing and also the foundation of image understanding. So edge detection is a hot point for researchers in the field of image measurement technology, which results in an amount of algorithms for edge detection. However, in practice of actual application and development, it is discovered that current available edge detection algorithms, which are applied to the target detection and recognition, can't obtain satisfying results. With the ongoing research and development of wavelet analysis, its applications gradually extended to image processing aspect.Wavelet analysis is a new tool of time-frequency analysis after Fourier... |