The volunteers were asked to track different objects with their eyes, which would require them to make rapid eye movements from one object to the next within their field of vision.

这项测试要求志愿者用双眼追踪不同的物体，并在视野范围内从一个物体到另一个物体进行快速眼动。

He said that someone might be spying on the station and the pilot was ordered to keep track of the strange object. . .

他说有可能有人正对基地进行侦察，因此命令那个飞行员跟踪那个奇怪的飞行物。

R And the track has a radius R, and at this moment in time the angle equals theta, and here is the object.

轨道半径是，在这个时刻,角度等于θ,这是物体。

To track objects with scale changes in a complex scene, a particle filter based object tracking approach is proposed in this paper.

针对复杂情况下变尺度目标跟踪问题，提出一种基于粒子滤波的自适应尺度目标跟踪算法。