Acta Photonica Sinica, Volume. 47, Issue 7, 710002(2018)
Nonuniformity Correction Method Based on Statistical Consistency of Adjacent Pixels
To correct the nonuniformity of long-wave infrareddetectors, a nonuniformity correction method based on statistical consistency of adjacent pixels is proposed. First, the model of radiance nonuniformity is introduced. Then, the ratio between adjacent pixels is estimated with a mean operator, and the correction coefficients are calculated iteratively. Finally, a principle prototype is set up to grab different scenes. Experimental results demonstrate that the proposed method can decrease the roughness of the corrected images from 1.27×10-2 to 1.13×10-2, and the local standard deviation from 10.5 to 3.5, compared with the calibration-based method. The proposed method can reduce nonuniformity noise of infrared detectors effectively.
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LIU Ya-mei. Nonuniformity Correction Method Based on Statistical Consistency of Adjacent Pixels[J]. Acta Photonica Sinica, 2018, 47(7): 710002
Received: Mar. 13, 2018
Accepted: --
Published Online: Sep. 16, 2018
The Author Email: Ya-mei LIU (liuyamei1970@126.com)