In the physical world, the actual location of a thing is the means to finding it. 在物理世界里，事物的实际位置意味着找到它的手段。
A camera with panning, tilting, and zooming capabilities is used as the eye of the small vehicle.A vehicle location estimation method using house corners is proposed first. 我们提出了基于房屋中天花板角落的自动车定位方式，根据天花板角落的线条形成情况我们可以计算自动车在地图上的实际位置。
While we won't discuss the details, in either case it is still possible to develop a simple algorithm to compute a record's physical location, given its relative record number. 虽然我们不考虑这些细节，但以上两种情况给定了它的相对记录编号，开发一种计算记录物理位置的算法仍然是可能的。
