A robust and accurate method is proposed to extract the isotropic points from min-max scanned photoelastic images automatically. The method uses a multiple layered window with four-change condition to extract the isotropic points. Test of this method on both the simulated and experimental obtained isoclinic images and direction images is shown. An exact position was found for the simulated images and a difference of about 1.4 pixels is achieved for the experimental ones. The whole scheme is very simple, fast, and effective to extract the isotropic point for structural design purpose.
|頁（從 - 到）||856-861|
|期刊||Proceedings of SPIE - The International Society for Optical Engineering|
|卷||5852 PART II|
|出版狀態||Published - 2005 12月 12|
|事件||Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics - Singapore, Singapore|
持續時間: 2004 11月 29 → 2004 12月 1
All Science Journal Classification (ASJC) codes