Low-cost computational imaging infrared sensor

Kyle Bryant; W. Derrick Edwards; Ryan K. Rogers

doi:10.1117/12.2054609

29 May 2014 Low-cost computational imaging infrared sensor

Kyle Bryant, W. Derrick Edwards, Ryan K. Rogers

Proceedings Volume 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV; 90710H (2014) https://doi.org/10.1117/12.2054609
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Computational imaging techniques can be used to extend the depth of field of imaging sensors such that the sensors become less expensive to build and athermalize with no loss to performance. Optical phase can be manipulated to create an image that is optimized for a detection and tracking algorithm as well as reconstructed digitally to form an image suitable for viewing. A typical low-cost sensor which is used for target detection and tracking may run an algorithm which requires different features and resolution from its imagery than would a system optimized for a human. This offers a unique opportunity to optimize both optics and image processing for a system which can maximize mission performance as well as minimize production cost. Simple computational techniques have not yet been successful in passive, low-signal environments due to noise issues. This study examines the use of a simple computational technique in an algorithmic application in which optimal reconstruction may occur with lower noise. This paper will describe the model, simulation, and prototype which resulted from a detailed and novel system design and modeling process. The goal of this effort is to accurately model the anticipated performance and to prove actual cost savings of a tracking sensor which employs computational imaging techniques.

Citation Download Citation

Kyle Bryant, W. Derrick Edwards, and Ryan K. Rogers "Low-cost computational imaging infrared sensor", Proc. SPIE 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV, 90710H (29 May 2014); https://doi.org/10.1117/12.2054609

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KEYWORDS

Modulation transfer functions

Sensors

Convolution

Optical filters

Computational imaging

Prototyping

Image filtering

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