Tracking of a Moving Object Using One-Dimensional Optical Flow with a Rotating Observer
Tracking of a Moving Object Using One-Dimensional Optical Flow with a Rotating Observer
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DOI：
10.1109/icarcv.2006.345264
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发表时间：
2006-12
期刊：
影响因子：
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通讯作者：
K. Kinoshita;Masaya Enokidani;M. Izumida;K. Murakami
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文献类型：
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作者：
K. Kinoshita;Masaya Enokidani;M. Izumida;K. Murakami
光流是跟踪运动目标的有用工具。基于梯度法的光流估计是一个不适定的问题。为了避免这种不适定问题，我们提出了一种使用一维光流的跟踪方法，该光流是在跨越几个方向的直线(称为计算轴)上计算的。但是，没有考虑观察员的动议。在本文中，我们提出了旋转观测器下一维光流的目标跟踪方法。在计算一维光流时，需要消除静止环境物体的表观运动。因此，我们引入了映射检测运动目标的方法，该方法将静止环境目标的运动转化为线性信号轨迹。利用运动物体的像素点计算一维光流，消除静止环境物体的视场运动。为了验证该方法的有效性，利用合成图像进行了仿真。当观测器以恒角速度旋转时，该方法成功地跟踪了运动目标
The optical flow is a useful tool for the tracking of a moving object. Estimation of the optical flow based on the gradient method is an ill-posed problem. In order to avoid this ill-posed problem, we proposed a tracking method using a one-dimensional optical flow, which is calculated on a straight line (called the calculation axis) spanning several directions. However, the motion of the observer was not considered. In this paper, we propose object tracking by a one-dimensional optical flow under a rotating observer. The apparent motion of a stationary environment object should be eliminated for calculating the one-dimensional optical flow. Hence, we introduce the detection method of a moving object by mapping, which converts the motion of a stationary environment object into a linear signal trajectory. We calculate the one-dimensional optical flow by using pixels, which belong to the moving object, to eliminate the apparent motion of the stationary environment object. In order to verify the efficacy of the proposed method, simulation is performed using synthesized images. The proposed method successfully tracks the moving object when the observer rotates at a constant angular velocity