A Car Plate Recognition Platform based on TI DSP

Abstract

In the modern intelligent transportation systems (ITS), the plate recognition system is a very important. The increasingly crowded city traffic needs more advanced and effective traffic management and control. It has been an important research direction to utilize the car plate recognition technology to enhance the management level and the traffic efficiency, and implement safe intelligent transportation management. In this article, the design, implementation and optimization of the DSP license plate recognition system were implemented on TI DSP. The video frequency decoding chip first translates the analog TV image signals obtained from CCD into the digital image signals which are inputted into DSP through FIFO buffer by the control of CPLD, and then aiming at the image, DSP performs the car plate positioning, the license plate character segmentation, the license plate character identification, the optical aberrance emendation, the nonlinear emendation of speed error and other algorithm operations to obtain the result of the license plate identification.