| With the development of digital signal processing technology, image tracking technology's practicality and flexibility advantages are gradually surfaced. Not only within the military sphere but also in industrial production or management sector it has been increasingly applied, for example, automatic following image and filtering eyewinker from materiel. In order to meet the needs of practical application, the target tracking system is designed.Moving target detection means identify a particular feature recognition from image. This paper mainly presents several methods of object detection, such as time-difference method, background-elimination method and template-matching method. After comparing, based on LabVIEW template-matching method is adopted to design tracking system of motion objects.System hardware and software have been designed, also control perform machine has been designed for use.System hardware design adopts AT89C2051 singlechip by ATMEL as the core controller. The core controller receives the control construction through RS-232C protocol. The voltage is regulated with the help of LM317/337 and X9312. UNL2003 is used to drive relay switch in order to control the startup, turn and stop of the direct electromotor.System software design includes the programming of PC and AT89C2051. The software design on PC is developed in the environment of LabVIEW and IMAQ Vision, CapturePRO and PID tools. The functions of images Acquisition, model matching, control and UART are achieved. Using C, the software design on AT89c2051 is achieved the functions of UART, judging the direction of electromotor, adjusting the voltage of the electromotor and running limit protect.The system is simple, economical and reliable, which has beautiful and friendly graphical interface and can be operated flexibly. The experiments turn to be that the system can achieve target identification and model matching fast. |
