Measurement of sub-pixel image motion based on joint transform correlator

2014 ◽  
Author(s):  
Xue-ting Hong ◽  
Yi-xian Qian ◽  
Xiao-wei Shi ◽  
Deng-hui Li
Keyword(s):  
Image Motion ◽  
Joint Transform Correlator ◽  
Pixel Image

Research on the Measurement Method of the Sub-Pixel Image Motion Based on Optical Correlator

2011 ◽  
Vol 271-273 ◽  
pp. 7-12
Author(s):  
Chao Fan ◽  
Tie Jun Yang ◽  
Hong Liang Fu ◽  
Yi Tao Liang
Keyword(s):  
Measurement Error ◽  
High Speed ◽  
Measurement Method ◽  
Frame Rate ◽  
Image Motion ◽  
High Speed Camera ◽  
Joint Transform Correlator ◽  
Experiment Platform ◽  
Pixel Image ◽  
Set Up

To measure the sub-pixel image motion of the sequence images which are captured by the high-speed camera at the high frame rate with poor SNR, the joint transform correlator (JTC) is used. The relative image motion of the two adjacent images can be measured by inputting these images into the correlator. The principle of this method is described, and the effect of the defocussing of the CCD in the JTC on the accuracy is analyzed. To research the measurement performance of the JTC concretely, the experiment platform is set up. By using different images with different image motion, the results showed that, the JTC can measure the sub-pixel image motion entirely even for the images with SNR=1, and the measurement error submits to the normal distribution, which implies zero mean and the RMS is no more than 0.12 pixel under the conspicuous level is equal to 0.05.

Static Simulation Experiment of Image Motion Measurement Based on Optical Joint Transform Correlator

2010 ◽  
Vol 30 (12) ◽  
pp. 3471-3475 ◽  
Author(s):  
易红伟 Yi Hongwei ◽  
赵惠 Zhao Hui ◽  
汶德胜 Wen Desheng ◽  
李英才 Li Yingcai
Keyword(s):  
Simulation Experiment ◽  
Image Motion ◽  
Joint Transform Correlator ◽  
Motion Measurement ◽  
Static Simulation

Improved digital processing method used for image motion measurement based on hybrid opto-digital joint transform correlator

2010 ◽  
Vol 8 (10) ◽  
pp. 989-992 ◽  
Author(s):  
易红伟 Hongwei Yi ◽  
赵惠 Hui Zhao ◽  
李英才 Yingcai Li ◽  
汶德胜 Desheng Wen
Keyword(s):  
Digital Processing ◽  
Processing Method ◽  
Image Motion ◽  
Joint Transform Correlator ◽  
Motion Measurement
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