Frontiers of Optoelectronics, 2011, 4 (4): 398, 网络出版: 2012-09-21
Modelling of beam propagation and its applications for underwater imaging
Modelling of beam propagation and its applications for underwater imaging
image super-resolution reconstruction (SRR) optical transfer function (OTF) point spread function (PSF) range-gated
摘要
Abstract
In order to process underwater imaging to the best possible level, an imaging model based on beam propagation was established. The presented model included not only the laser beam propagation affected by absorption and scattering, but also the effects of underwater turbulence and the diffraction limit of sensors. By this model approximately quantified optical transfer functions (OTFs) were studied. Thus, under this framework, the approaches of image enhancement, restoration and super-resolution reconstruction (SRR) can be extended by incorporating underwater optical properties based on OTF or point spread function (PSF) of the imaging system. Experimental results proved that the imaging range and the image quality can be effectively enhanced, which are critical in underwater imaging or detecting.
Yuzhang CHEN, Kecheng YANG, Xiaohui ZHANG, Min XIA, Wei LI. Modelling of beam propagation and its applications for underwater imaging[J]. Frontiers of Optoelectronics, 2011, 4(4): 398. Yuzhang CHEN, Kecheng YANG, Xiaohui ZHANG, Min XIA, Wei LI. Modelling of beam propagation and its applications for underwater imaging[J]. Frontiers of Optoelectronics, 2011, 4(4): 398.