Abstract:

In order to streamline the camera speed in image processing, we introduce the work principle of rolling shutter camera. The perspective projection model of three dimensional space goals and camera imaging target is established. And a detailed theoretical derivation of the velocity measurement algorithms for moving target in space and plane is given. Finally, this velocity measurement method was experimental. The results show that the velocity measuring method using the rolling shutter CMOS digital camera can measure the moving target position and velocity parameters in plane. The test result is reliable, and accuracy error of measuring velocity is within the allowable range(3%). This method will have wide development and application prospect in the future traffic regulation fields.

Key words: CMOS camera, rolling shutter, perspective projection model, speed measurement algorithm