Infrared and Laser Engineering, Volume. 47, Issue 6, 626003(2018)
An narcissus effect correction method based on spatial and time domain estimation
Narcissus effect was an important factor that influence the imaging quality of the cooled infrared detector. Although it can be removed by non-uniform correction techniques, narcissus effect will reappear once the operating conditions have changed. Through analyzing the manifestation of narcissus effect, a correction algorithm based on adaptive spatial-temporal filtering was proposed. First, spatial domain estimation of Narcissus effect was captured by wavelet transform. Then, time domain estimation of Narcissus effect was gained by adaptive time domain low-pass filtering. Finally, the correction was applied by subtracting the estimated spatial-temporal noise from the original image. Experimental results on simulated and actual infrared image sequences have verified the effectiveness of the proposed algorithm.
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Wei Wei, Xiang Wei, Zhao Yaohong. An narcissus effect correction method based on spatial and time domain estimation[J]. Infrared and Laser Engineering, 2018, 47(6): 626003
Category: 信息获取与辨识
Received: Jan. 5, 2018
Accepted: Feb. 3, 2018
Published Online: Sep. 8, 2018
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