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17 May 2016 Experimental study of a DMD based compressive line sensing imaging system in the turbulence environment
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The Compressive Line Sensing (CLS) active imaging system has been demonstrated to be effective in scattering mediums, such as turbid coastal water through simulations and test tank experiments. Since turbulence is encountered in many atmospheric and underwater surveillance applications, a new CLS imaging prototype was developed to investigate the effectiveness of the CLS concept in a turbulence environment. Compared with earlier optical bench top prototype, the new system is significantly more robust and compact. A series of experiments were conducted at the Naval Research Lab's optical turbulence test facility with the imaging path subjected to various turbulence intensities. In addition to validating the system design, we obtained some unexpected exciting results – in the strong turbulence environment, the time-averaged measurements using the new CLS imaging prototype improved both SNR and resolution of the reconstructed images. We will discuss the implications of the new findings, the challenges of acquiring data through strong turbulence environment, and future enhancements.
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Bing Ouyang, Weilin Hou, Cuiling Gong, Frank M. Caimi, Fraser R. Dalgleish, and Anni K. Vuorenkoski "Experimental study of a DMD based compressive line sensing imaging system in the turbulence environment", Proc. SPIE 9827, Ocean Sensing and Monitoring VIII, 982709 (17 May 2016);

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