The Research And Realization Of Precise Measurement Based On Digital Image Processing

Measurement way experienced from unidimension to multidimension.the display mode correspondingly experienced the transformation from the indicator,electronic display to image display.Therefore it is a inevitable trend that digital image processing in the application of measurement aspect.The research on measurement system based on digital image processing.has the high research value.This dissertation introduced the characteristic,application field,system composition and current research situation both home and aboard of the measurement system based on digital image processing.and expected its developing trend.Introduced the background of measurement system based on digital image processing.Discussed the overall structure and the design objective of the measurement system.Designed a kind of digital image processing measurement system based on intelligent camera CANCAM 1318M.Validate- d the measurement system on via hole of print circuit board,and acquired the good result.The subpixel was commented and general subpixel allocation technology was introduced in the dissertation,it includes heart method of the shape,gravity method of the gray scale,fitting method and so on,and discussed the apply field of those method.The propose of subpixel,can improve the precision of measurement system on the condition of current hardware.The realization of measurement system based on digital image processing,is a innovation to traditional measurement system.Its extend application will improve the efficiency of measurement system,and can implement some complex measurement task,it will bring about considerable economic effect and social benefits.