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3D Object Extraction Algorithm Based on Hierarchical Approach Using Reduced Windowed Fourier Phase  

Min, Gak (경북대학교 전자전기공학부)
Han, Kyu-Phil (금오공과대학교 컴퓨터공학부)
Lee, Ky-Soo (금오공과대학교 컴퓨터공학부)
Ha, Yeong-Ho (경북대학교 전자전기공학부)
Abstract
This paper presents a phase-based stereo matching algorithm in order to efficiently extract 3-dimensional objects from two 2D images. Conventional phase-based methods, especially using windowed Fourier phases, inherit good properties in the case of hierarchical approaches, because they basically use a multi-resolution phase map. On the contrary, their computational costs are very heavy. Therefore, a fast hierarchical approach, using multi-resolution phase-based strategy and reducing the redundancy of phase calculations, is proposed in this pare. In addition, a structural matching algorithm on the phase domain is adopted to improve the matching quality. In experimental results, it is shown that the computation loads are considerably reduced about 8 times and stable outputs are obtained.
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