Automatic Image Matching Based on Wavelet Pyramid
Wei Lu · Journal of The Pla Institute of Surveying and Mapping · 2002
Digital image matching is a key problem in extracting 3D information from remotely sensed images. In this essay an automatic approach of image matching based on wavelet transformed pyramids is developed to provide a detailed set of matched points quickly. After generating image pyramids, the cross correlation algorithm is proposed to search identical points between images on the same level and parallax control is utilized to convey identical points from higher level image to lower level image. The approach described here has been applied to real SPOT images. The experiment results prove that the matching method proposed by this paper has satisfactory efficiency and accuracy.