Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
852400 | Optik - International Journal for Light and Electron Optics | 2010 | 5 Pages |
Abstract
A novel measurement scheme for a three dimensional (3D) object's surface boundary perimeter is proposed. This scheme consists of three steps. First, a binocular stereo vision measurement system with two CCD cameras is devised to obtain the two images of a detected object's 3D surface boundary. Second, two B-spline active contours are applied to converge to the object's contour edges accurately in the two CCD images to perform the stereo matching. Finally, for the reconstructed 3D active contour, its true contour length is computed as the detected object's true boundary perimeter. An experiment on a bent surface's perimeter measurement indicates that this scheme's measurement repetition error decreases to 0.6%.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Peng Zhao, Ni-Hong Wang,