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Class round machine vision inspection of objects have a wide range of applications in the industrial and agricultural production , health and other fields , the roundness is one of the important indicators of the the class round object detection . In this paper, cigarettes , filter rods roundness measurement system pre-research context , the roundness measurement machine vision technology . This paper designs a set of structures of the execution flow of the machine vision roundness measurement system , including image acquisition , camera calibration, image processing, image analysis . From hardware, software, a comprehensive introduction to the research and implementation of roundness measurement system . This article describes the selection of hardware knowledge , focuses on the selection of the light source . Compare a variety of classic camera calibration , the value of the distance transform , image segmentation method , and is given effect diagram , to lay the foundation for the realization of the system , and also provide a reference for other roundness measurement system . This paper proposes to transform the concept of the edge weights , and gives the algorithm and achieve results in Fig . The calculation of the roundness , the paper creatively proposed a combination of methods of using the edge detection image and the binarized image strike diameter . Proposed given the centripetal force of the search point , the edge of the gravitational force of the edge weights three energies , energy method to find the actual object contour points . Accidental error handling , this paper proposes to use the maximum window scanning to find the longest chord as diameter . Under the proposed approach , to use LahVIEW platform and VC platform combined cigarette filter rod online roundness measurement system . Bad environment in the laboratory to obtain a better measurement results .
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