22 August 2014 Resolution analysis in computational imaging with patterned illumination and single-pixel detection
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Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 92864X (2014) https://doi.org/10.1117/12.2063623
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal
Abstract
In computational imaging by pattern projection a sequence of microstructured light patterns codified onto a programmable spatial light modulator is used to sample an object. The patterns are used as generalized measurement modes where the object information is expressed. Our paper makes two specific contributions within the field of single-pixel imaging through patterned illumination. First, we perform an analysis of the optical resolution of the computational image. This resolution is shown not to be limited at all by the optical quality of the collection optics. This result is proved by using a low NA microscope objective for imaging at a CCD camera. Spatial frequencies that are not transmitted through this low quality optics are demonstrated to be present in the retrieved image through patterned illumination. Second, we experimentally demonstrate the capability of our technique to properly recover an image even when an optical diffuser is located in between the sample and the single-pixel detector.
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A. D. Rodriguez, P. Clemente, E. Irles, E. Tajahuerce, J. Lancis, "Resolution analysis in computational imaging with patterned illumination and single-pixel detection", Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92864X (22 August 2014); doi: 10.1117/12.2063623; https://doi.org/10.1117/12.2063623
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