HONG Wen-qing, YAO Li-bin, JI Rong-bin etc. A super-frame processing method for infrared image based on accumulation of different integration time frame[J]. Editorial Office of Optics and Precision Engineering, 2016,24(6): 1490-1500
HONG Wen-qing, YAO Li-bin, JI Rong-bin etc. A super-frame processing method for infrared image based on accumulation of different integration time frame[J]. Editorial Office of Optics and Precision Engineering, 2016,24(6): 1490-1500 DOI: 10.3788/OPE.20162406.1490.
A super-frame processing method for infrared image based on accumulation of different integration time frame
Since the dynamic response range of the detector component within the period of single framing for most regular infrared imaging system is limited
and the super-frame calculation can not be conducted without the help of other complicated devices or dedicated circuits
a method based on accumulation of different integration time frame for infrared image super-framing was put forward. In this method
a research was conducted on the whole super-framing process by means of electronic method
the reason for limited dynamic response range of the infrared detector was analyzed
and the principle
advantages and disadvantages of the frame integration method was introduced. Then non-uniform correction
frame information integration and new frame mapping were conducted on images obtained under different integration time. It is showed in the test that the method helps to improve the NETD of the system
capture more original image information
enrich the gray level of the image
and increase the image information entropy. By using this method
the dynamic response range of the detector can be expanded
more original scene information can be captured
and the detection sensitivity and signal to noise ratio of the image output signal can be improved.
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references
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