Real-time characterization of aspect flaws on warped surface by artificial vision
Artificial vision is an efficient means of assuring the quality of a certain class of products. The vision system must respect the industrial constraints, in particular, the production rate. The geometrical features of flaws are pertinent information used for the acceptance of the controlled product. This article presents a real-time algorithm for the geometrical characterization of defects located on warped objects. The algorithms described enable the characterization of defects by their size and their 2D shape. Both parameters are calculated in real time by simple reference to a look-up table. The 2D shape is obtained by a geometrical transform and an interpolation. The efficiency of the characterization method is experimentally evaluated.
- Pub Date:
- October 1997