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1 March 1992 Recovery from low light level images
Manuel Perez Cagigal, Pedro M. Prieto
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Proceedings Volume 1603, Education in Optics; (1992) https://doi.org/10.1117/12.57882
Event: Education in Optics, 1991, Leningrad, Russian Federation
Abstract
The result of detecting in low light level are images with only a small number of photopulses. Only the pixels in which arrive the photopulse have an intensity value different from 0. The work presents an easy procedure for simulating low light level images by taking an standard well illuminated image as a reference. The images so obtained are composed by a few illuniinated pixels on a dark background. The number of illuminated pixels is less than the 1% of the total pixels number, and hence it is difficult to recognize the original object. A procedure for enhancement and recovery the original image is described and applied to low light level images previously simulated. The result is a visual experiment, easy to be performed (using a personal computer and a frame grabber), which state the statistical nature of light.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Manuel Perez Cagigal and Pedro M. Prieto "Recovery from low light level images", Proc. SPIE 1603, Education in Optics, (1 March 1992); https://doi.org/10.1117/12.57882
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KEYWORDS
Device simulation
Cameras
Computer simulations
Sensors
Image processing
Astatine
Frame grabbers
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