光学技术, 2007, 33 (2): 0289, 网络出版: 2010-06-03
利用空间光调制器的偏振特性实现图像边缘增强
Edge enhancement of input image by using the polarizable character of spatial light modulator
信息光学 空间光调制器 起偏器 检偏器 边缘增强 information optics spatial light modulator polariser analyzer edge enhancement
摘要
讨论了光电混合型范德卢格特相关器中起偏器和检偏器对场景空间光调制器的影响。提出了一种通过设置起偏器和检偏器相对于场景空间光调制器入射表面液晶指向矢方向的角度来实现图像边缘增强的预处理方法。通过对XGA2L11型电寻址薄膜晶体管驱动透射式液晶空间光调制器的实验测试表明,该方法减少了计算机图像预处理的运算量,有效地提高了目标识别的速度,实现了场景图像边缘增强的实时预处理。
Abstract
The relationship of input spatial light modulator,polariser and analyzer in Vanderlugt correlator is discussed. A way to realize edge enhancement of input image by setting the angle between polariser and analyzer to spatial light modulator is put forward. The spatial light modulator of XGA2L11 is measured by experiment. The results show that the way can decrease computer's calculational amount for the preprocessing of input image and increase the speed of target identification.
胡文刚, 王永仲, 华文深. 利用空间光调制器的偏振特性实现图像边缘增强[J]. 光学技术, 2007, 33(2): 0289. HU Wen-gang, WANG Yong-zhong, HUA Wen-shen. Edge enhancement of input image by using the polarizable character of spatial light modulator[J]. Optical Technique, 2007, 33(2): 0289.