Light Efficient Flutter Shutter

08/23/2015

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by   Moshe Ben-Ezra, et al.

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Flutter shutter is a technique in which the exposure is chopped into segments and light is only integrated part of the time. By carefully selecting the chopping sequence it is possible to better condition the data for reconstruction problems such as motion deblurring, focal sweeping, and compressed sensing. The partial exposure trades better conditioning for less energy. In problems such as motion deblurring the available energy is what caused the problem in the first place (as strong illumination allows short exposure thus eliminates motion blur). It is still beneficial because the benefit from the better conditioning outweighs the cost in energy. This documents is focused on light efficient flutter shutter that provides better conditioning and better energy utilization than conventional flutter shutter.