Abstract
Dark signal is the non-negligible component of the CCD (Charge Coupled Devices) camera noise. The most straightforward way to eliminate dark signal is cooling the CCD chip. Moreover, the dark-signal image correction technique gets the more extensive application because of its lower development costs and better dark-signal correction effect. In this article, two methods for estimating the average of dark signals based on temperature and dark pixels are introduced, as well as the method for estimating the pixel nonuniformity of dark signal and for pixel-level dark signal correction. Experiment results show that the method in this article can achieve higher accuracy in dark-signal correction.
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Li, C., Guo, Y., Zhang, F., Dong, F., Hu, Y., Dong, S. (2018). The Dark-Signal Real-Time Correction Method of CCD Digital Image. In: Urbach, H., Yu, Q. (eds) 4th International Symposium of Space Optical Instruments and Applications. ISSOIA 2017. Springer Proceedings in Physics, vol 209. Springer, Cham. https://doi.org/10.1007/978-3-319-96707-3_20
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DOI: https://doi.org/10.1007/978-3-319-96707-3_20
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