METHOD AND SYSTEM TO DETERMINE VEHICLE SPEED

摘要

PROBLEM TO BE SOLVED: To provide a method and system to determine the vehicle speed.SOLUTION: A vehicle speed determination system and method receive image data of a field of view of a camera mounted to a vehicle and disposed operably thereon. A speed and/or heading of the vehicle are determined as the vehicle is moving based at least in part on one or more differences in the image data. In one aspect, pixel intensities in different images or frames may be examined to identify one or more notable features of interest in the images or frames. Movement of the one or more notable features of interest in the images or frames is correlated to movement of the vehicle along a route, and time differences between when the images or frames are obtained can be used to determine the vehicle speed.SELECTED DRAWING: Figure 1