Comparative noise performance of a coded aperture spectral imager

Jonathan Piper; Peter Yuen; Peter Godfree; Mengjia Ding; Umair Soori; Senthurran Selvagumar; David James

doi:10.1117/12.2240926

25 October 2016 Comparative noise performance of a coded aperture spectral imager

Jonathan Piper, Peter Yuen, Peter Godfree, Mengjia Ding, Umair Soori, Senthurran Selvagumar, David James

Proceedings Volume 9992, Emerging Imaging and Sensing Technologies; 99920G (2016) https://doi.org/10.1117/12.2240926
Event: SPIE Security + Defence, 2016, Edinburgh, United Kingdom

Abstract

Novel types of spectral sensors using coded apertures may offer various advantages over conventional designs, especially the possibility of compressive measurements that could exceed the expected spatial, temporal or spectral resolution of the system. However, the nature of the measurement process imposes certain limitations, especially on the noise performance of the sensor. This paper considers a particular type of coded-aperture spectral imager and uses analytical and numerical modelling to compare its expected noise performance with conventional hyperspectral sensors. It is shown that conventional sensors may have an advantage in conditions where signal levels are high, such as bright light or slow scanning, but that coded-aperture sensors may be advantageous in low-signal conditions.

Conference Presentation

Citation Download Citation

Jonathan Piper, Peter Yuen, Peter Godfree, Mengjia Ding, Umair Soori, Senthurran Selvagumar, and David James "Comparative noise performance of a coded aperture spectral imager", Proc. SPIE 9992, Emerging Imaging and Sensing Technologies, 99920G (25 October 2016); https://doi.org/10.1117/12.2240926

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