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oai:www.ideals.illinois.edu:2142/81370 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

David Jones Brady Marks, Daniel Lawrence 2015-09-25T20:10:46Z 2015-09-25T20:10:46Z 10000-01-01 2001 2001 Ubiquitous computational capacity and large electronic focal plane arrays have made new combinations of optical sensing and digital processing possible. Using the framework of optical spatial coherence theory, this thesis proposes and investigates new combinations of optics and algorithms with capabilities not possessed by standard lens-based cameras. This thesis proposes and demonstrates how cone-beam tomographic algorithms can be used to make high-resolution 3-D power density reconstructions of visible light sources using standard lens-based cameras, pinhole cameras, cubic-phase-plate enhanced high depth-of-field imagers, and coherence sensors such as the Rotational Shearing Interferometer. The thesis also demonstrates how the Rotational Shearing Interferometer can obtain infinite depth-of-field images, which is not possible with lens-based cameras. A new coherence sensor is proposed, the Astigmatic Coherence Sensor, that measures the entire spatial coherence function in an aperture, without the noise and stability disadvantages of an interferometric sensor. With the entire coherence function, a coherence mode decomposition can be used to separate the fields due to independent sources. Using the ACS, the coherence of a distorted source is measured, and the distortion is identified and removed. Finally, the Optical Golomb Ruler Sampling Interferometer is proposed, a design that uses spot array generation to combinatorically correlate all pairs of a set of points in an aperture. Made available in DSpace on 2015-09-25T20:10:46Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9996659.pdf: 5826875 bytes, checksum: e164e09c848a63d47cd950add55e13ea (MD5) Previous issue date: 2001 Embargo set by: Seth Robbins for item 82651 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 127 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001. http://hdl.handle.net/2142/81370 (MiAaPQ)AAI9996659 eng Engineering, Electronics and Electrical Four-Dimensional Coherence Sensing text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.