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• W7673860 abstract "This paper presents fast algorithms for similarity measure, stereo matching, panoramic stereo matching, and image motion esti- mation. The disparity map for the stereo images is found in the 3D correlation coefficient volume by obtaining the global 3D maximum- surface by using our two-stage dynamic programming (TSDP) technique. Fast panoramic stereo matching is carried out using a cylindrical maximum surface technique. Optical flow or image motion estimation is obtained using 3D shortest path techniques. A variety of synthetic and real images have been tested, and good results have been obtained. Keywords: Rectangular subregioning (RSR), 3D Maximum-Surface, Two-stage dynamic programming (TSDP), Fast panoramic stereo match- ing, Circular shortest path, Cylindrical maximum surface, Motion esti- mation, Optical flow, 3D shortest path. I. INTRODUCTION The correspondence problem in stereo vision and image motion concerns the matching of points or other kinds of primitives such as edges and regions in two or more images such that the matched image points are the projections of the same point in the scene. The disparity map or motion field obtained from the matching stage may then be used to compute the 3D positions of the scene points given the imaging geometry. Matching techniques can be divided broadly into area-based and feature-based image matching, or a combination of them. Other types of stereo matching methods such as pixel-based (4), diffusion-based (5), wavelet-based (6), phase-based (7), and filter- based (8) have also been developed. There are also several types of methods for estimating image motion or optical flow (9). In this paper we will present techniques for fast stereo matching, fast panoramic stereo matching and image motion estimation. The rest of the paper is organised as follows: Section II proposes our method for fast calculation of similarity measure. Section III presents our method for fast stereo matching by finding the maximum-surface in the 3D correlation volume using the TSDP technique. Section IV presents algorithms for fast panoramic stereo matching. Section V gives our method for fast motion estimation. Section VI discusses the reliability and computation speed issues of our algorithms. Section VII gives concluding remarks." @default.
• W7673860 created "2016-06-24" @default.
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• W7673860 date "2003-01-01" @default.
• W7673860 modified "2023-09-27" @default.
• W7673860 title "Fast Algorithms for Stereo Matching and Motion Estimation" @default.
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