Laser Stripe Center Detection Algorithm And Its Application In Calibrator In Wheel Alignment

Along with the advance of science, the application of machine vision in industry more and more widely. Laser measurement as a non-contact measurement, due to low demand cost, small size, light weight and convenient and flexible features, in today’s popular visual measurement and other engineering survey has been widely applied, such as applied to automotive BIW-line quality control, automatic hardware detection circuit boards, the workpiece shape and position error detection, and this paper involved the four-wheel positioning detection instrument, etc. Online structured light vision inspection systems, such as laser stripes or interference fringe image with important information source of images become an important source of the object is measured. Ensure the accuracy of measurement has become an important issue.This paper mainly introduces the variety of sub-pixel laser stripe center detection algorithm, and then use Matlab simulation comparative analysis, comparing the advantage and disadvantages of the algorithm, select a suitable platform for sub-pixel stripe center detection algorithm. This paper introduces the algorithm implementation of the construction of the platform software framework, the control of video transmission in the design and implementation of the algorithm.In this paper, The whole software system of this paper is to use Visual c++6.0and Keil mu Vision4software platform, use the MFC technology, USB Control Transmission Protocol, image processing algorithms, such as knowledge. Software system from the host computer system framework, USB control transfer system and image processing systems of these three parts. PC frame system is mainly responsible for the interaction between the users and, USB control the transmission system with the next crew responsible for message responses and video transmission, the algorithm of image processing system is responsible for a specific algorithm.