Research on Algorithm for Solving Maximum Inscribed Circle of Image

In order to use existing images to reconstruct the 3D shape of pipelines,the images are digitized and the related information is extracted.Then the thought of image-erosion in mathematics morphology is applied.Finally an algorithm which is used to seek maximum inscribed circle by getting rid of image’s edges layer by layer is presented.This algorithm is preferable in solving problems of rebuilding 3D shape of pipelines from images.An improved operator of image edge detection is used,which is fit for all kinds of shapes.The satisfactory results on practical use are showed.