The joint transform correlator(JTC) can provide subpixel registration accuracy for the images which were captured at high frame rate with poor SNR.The principle of this method was described,and the effect of the defocussing on the accuracy was analyzed.Two preprocessing methods were simulated to measure the image motion for two images with different scene.The results show that,the RMS accuracy of 0.2 pixel can be achieved,when the Laplacian convolution kernel is used in the input plane,and the power spectru...
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樊超;易红伟;陈浩锋;王矫.基于光学相关的亚像元像移测量方法研究[J].激光与红外,2007,37(2):181~184 FAN Chao; YI Hong-wei; CHEN Hao-feng; WANG Jiao. Research on the Measurement Method of the Sub-pixel Image Motion Based on Optical Correlator[J]. LASER & INFRARED,2007,37(2):181~184