Javidi B, Kuo C J, Chen Y F, Ludman J E
Appl Opt. 1988 Mar 1;27(5):949-53. doi: 10.1364/AO.27.000949.
A real-time polychromatic image correlator that uses a magnetooptic (MO) spatial light modulator (SLM) device for pattern recognition based on both the color and shape of an input object is presented. The proposed system utilizes a multichannel spectral matched spatial filter employed in a binary coherent optical correlator. Input color images are transformed into binary color coded coherent images by a color grating. The color encoded images are read out by a charge coupled device interfaced with a MO SLM. The color encoded binary images are then processed by a multichannel joint spectral matched spatial filter synthesized by monochromatic light. Pattern recognition experiments for naturally illuminated real color objects are presented.
提出了一种实时多色图像相关器，该相关器使用磁光（MO）空间光调制器（SLM）设备，基于输入物体的颜色和形状进行模式识别。所提出的系统利用了二元相干光学相关器中采用的多通道光谱匹配空间滤波器。输入的彩色图像通过彩色光栅被转换为二元颜色编码相干图像。彩色编码图像由与MO SLM接口的电荷耦合器件读出。然后，彩色编码的二元图像由单色光合成的多通道联合光谱匹配空间滤波器进行处理。文中展示了针对自然光照下真实彩色物体的模式识别实验。
