Research on the Precision Measurement Method of Flat Screen Gap Based on Mobile Vision

In view of the problem that measurement accuracy screen gaps is affected by R region transition rounded corner large-size flat back cover, a mobile vision system with dual linear motor synchronous drive designed to realize precise positioning monocular in 16 local image acquisition positions set region. Full-size achieved using information fusion accurately measure gap. First, solve edge breaking and blurring images, extraction segmentation method based on block statistics proposed quickly obtain accurate outer edges. Then, an adaptive Hough line detection dichotomy locate The experimental results show up 99.68% within 60 ms; angle error position are less than 0.01° 0.2 pixels, respectively. With optimal anti-interference performance, algorithm realizes 200 time 6.0 s 0.03 mm,