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Velocity Pairing in Motion Estimation using Periodogram  

Chang, Soo-Young (이화여자대학교 정보통신학과 영상신호처리 연구실)
Lee, Byung-Uk (이화여자대학교 정보통신학과 영상신호처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.4C, 2003 , pp. 406-412 More about this Journal
Abstract
A fast multiple object motion detection method using periodogram has been proposed. Each frame is projected to vertical and horizontal directions, and then temporal FFT is applied. A line in two dimensional frequency domain indicates velocity. To estimate the velocity of an object, we intergrate along a line which passes through the origin in frequency domain. If a frame contains multiple moving objects, multiple peaks are detected corresponding to the velocity of each object. After pairing these peaks, we can determine the velocities of an object. In the proposal method we can easily pair horizontal and vertical velocity components efficiently with simple computation by combining projections in 45$^{\circ}$ and 135 $^{\circ}$ directions in addition to the vertical and horizontal direction.
Keywords
움직임 추정;
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