Title :
Cosmic-ray rejection for a single fiber spectral image by statistical characteristics
Author :
Yanwu Chu ; Huiling He ; Zi Liu ; Yao Huang
Author_Institution :
Coll. of Sci., Three Gorges Univ., Yichang, China
Abstract :
The cosmic rays from space bring great noise to the astronomical pictures with long exposure. Eliminating this noise has a very important significance for the two-dimensional fiber spectral images. This paper proposes a method of detecting the pixels polluted by cosmic rays based on statistics, and a method of repairing the rejected points with weighted averaging. The results show that the detection method is simple and efficient and the packing method has a good repairing performance.
Keywords :
astronomical image processing; astronomical techniques; cosmic rays; image restoration; statistical analysis; 2D fiber spectral images; astronomical pictures; cosmic-ray rejection; detection method; packing method; rejected points; single fiber spectral image; statistical characteristics; weighted averaging; Charge coupled devices; Cosmic rays; Interpolation; Maintenance engineering; Noise; Optical fiber devices; Optical fiber networks; cosmic-ray; rejection; repair; spectral image; statistics;
Conference_Titel :
Natural Computation (ICNC), 2014 10th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4799-5150-5
DOI :
10.1109/ICNC.2014.6975960
