Results 201 to 210 of about 6,248,965 (222)

Pol2Pol: self-supervised polarimetric image denoising

Optics Letters, 2023
In this Letter, we present a self-supervised method, polarization to polarization (Pol2Pol), for polarimetric image denoising with only one-shot noisy images. First, a polarization generator is proposed to generate training image pairs, which are synthesized from one-shot noisy images by exploiting polarization relationships. Second, the Pol2Pol method
Hedong Liu, Xiaobo Li, Zhenzhou Cheng, Tiegen Liu, Jingsheng Zhai, Haofeng Hu   +5 more
openaire   +2 more sources

Polarimetric SAR Image Factorization

IEEE Transactions on Geoscience and Remote Sensing, 2017
This paper reformulates the problem of polarimetric incoherent target decomposition as a general image factorization which aims to simultaneously estimate a dictionary of meaningful atom scatterers and their corresponding spatial distribution maps.
Feng Xu, Qian Song, Ya-Qiu Jin
openaire   +1 more source

Hyperspectral polarimetric imaging testbed

SPIE Proceedings, 2005
The Hyperspectral Polarimetric Imaging (HPI) Testbed system combines a dual-band hyperspectral imager (VNIR and SWIR), a 3-axis polarimetric imager, and a high resolution panchromatic imager. All imagers operate through a common fore-optic, and thus have identical fields of view, with simultaneous image capture.
David B. Cavanaugh, Yannick P. Gargadennec, Brian Catanzaro, Kenneth R. Castle, Wayne Davenport   +4 more
openaire   +1 more source

Wideband polarimetric radar imaging

IEEE Antennas and Propagation Society International Symposium 1992 Digest, 1992
Summary form only given. The relationship of the polarization dependence of the corresponding radar cross-section matrices in the frequency domain with that of the target eigen-resonance maps is demonstrated, leading to the concept of polarimetric wavelets, which offers a useful interpretative tool for polarimetric UWB (ultrawideband) target versus ...
G.K. Stratis, V. Naik, W.-M. Boerner, J.B. Cole   +3 more
openaire   +1 more source

Real-time polarimetric imager

SPIE Proceedings, 2005
There is strong evidence to suggest that polarimetric techniques offer significant improvements in the ability of electro-optic sensors to detect difficult targets in cluttered backgrounds. Many previous attempts to quantify the potential benefits have been hampered by an inability to gather all the polarimetric data simultaneously from a scene ...
David L. Jordan, Greg Innes, Daniel Hayter, David Huckridge   +3 more
openaire   +1 more source

Polarimetric optical imaging of scattering surfaces

Applied Optics, 1996
A polarimetric optical specular event detector (OSED) has been developed to provide spatially and temporally resolved polarimetric data of backscattering in the visible from water wave surfaces. The OSED acquires simultaneous, two-dimensionally resolved images of the remote target in two orthogonal planes of polarization.
J D, Barter, P H, Lee
openaire   +2 more sources

Reconfigurable snapshot polarimetric imaging technique through spectral-polarization filtering.

Optics Letters, 2019
In this Letter, we propose a simple, low-cost, reconfigurable snapshot polarimetric imaging technique for a color camera to measure polarization properties with spectral-polarization filters. Experimental results demonstrate the unique capabilities, such
Jian Liang, Xiaobo Tian, Haijuan Ju, Daodang Wang, Heng Wu, Liyong Ren, Rongguang Liang   +6 more
semanticscholar   +1 more source

Contrast optimization in broadband polarimetric imaging

SPIE Proceedings, 2016
For the sake of polarimetric accuracy, polarization imaging systems based on liquid crystal modulators often work at one given wavelength due to the strong chromatic properties of the liquid crystal retarders. This often requires the use of narrowband filters which reduces the amount of light in the system and thus the signal-to-noise ratio.
Thomas, Lijo, Boffety, Matthieu, Goudail, François, Hu, Haofeng   +3 more
openaire   +1 more source

Polarimetric imaging of underwater targets

SPIE Proceedings, 2013
Underwater imaging is challenging because of the significant attenuation of light due to absorption and scattering of light in water. Using polarization properties of light is one of the options for improving image quality. We present results of imaging of a polarized target in open ocean (Curacao) and coastal (NY Bight) waters. The target in the shape
Alex Gilerson, Carlos Carrizo, Alberto Tonizzo, Amir Ibrahim, Ahmed El-Habashi, Robert Foster, Samir Ahmed   +6 more
openaire   +1 more source

Adaptive underwater image recovery using polarimetric imaging

Tenth International Conference on Graphics and Image Processing (ICGIP 2018), 2019
Underwater image generally suffers from color degradation and poor visibility due to the attenuation and scattering of the propagated light. To restore the real environment of the underwater, most of previous methods only consider the scattering in the polarimetric image recovery model.
Zheng Liang, Congcong Zhao, Yafei Wang, Xueyan Ding, Zetian Mi, Xianping Fu   +5 more
openaire   +1 more source