关键词: Hough变换, ADSP-BF609, 指针式仪表, PIXC, PVP

Abstract:

One way of digital pointer type instrument is to read and recognize the image of the instrument by image acquisition and processing technology,which can improve the accuracy and efficiency of the interpretation,and avoid the error caused by subjective reasons.The paper proposed a design scheme of pointer instrument identification system based on DSP, using the median filter for image denoising, Canny operator for edge detection , Hough transform for central location and line detection , and so on pointer instrument identification algorithm.The function and performance of the system are tested with the integrated development environment CCES provided by ADI. The results show that the platform runs stably, and the pointer image recognition based on DSP has strong accuracy and real-time performance.

Key words: Hough transform;ADSP BF609;pointer type instrument;PIXC;PVP