scholarly journals Integrated spectral-polarization imaging sensor with aluminum nanowire polarization filters

2012 ◽  
Vol 20 (21) ◽  
pp. 22997 ◽  
Author(s):  
Meenal Kulkarni ◽  
Viktor Gruev
Keyword(s):  
Polarization Imaging ◽  
Imaging Sensor

scholarly journals Dual-tier thin film polymer polarization imaging sensor

2010 ◽  
Vol 18 (18) ◽  
pp. 19292 ◽  
Author(s):  
Viktor Gruev ◽  
Jan Van der Spiegel ◽  
Nader Engheta
Keyword(s):  
Thin Film ◽  
Polarization Imaging ◽  
Imaging Sensor ◽  
Film Polymer

scholarly journals CONSTRUCTION AND TEST OF BIO-INSPIRED IMAGING POLARIZATION NAVIGATION PROTOTYPE

2020 ◽  
Vol XLIII-B1-2020 ◽  
pp. 323-329
Author(s):  
H. Lu ◽  
Y. Xie ◽  
K. Zhang ◽  
H. Zhang ◽  
X. M. Zou ◽  
...  
Keyword(s):  
Real Time ◽  
Measurement Accuracy ◽  
Recognition Algorithm ◽  
Dynamic Experiment ◽  
Polarization Imaging ◽  
Polarization Image ◽  
Intensity Images ◽  
Measurement Algorithm ◽  
Imaging Sensor ◽  
Navigation Method

Abstract. Bio-inspired polarization navigation is a promising navigation method inspired by insects’ autonomous foraging and homing behaviour. Many insects acquire their spatial orientation by sensing the polarization pattern of the skylight. We propose utilization of solar meridian in the polarized skylight as an orientation cue because of its significant features. Using its features, we then design and construct an imaging polarization navigation prototype. The prototype consists of a field-division polarization imaging sensor, the corresponding software, an interface, and the solar-meridian recognizing and measurement algorithm. The field-division polarization imaging sensor is the core component of the prototype and acquires polarized intensity images. To adapt to the demand of real-time on navigation system, we then propose an optimized real-time polarization image processing and pattern recognition algorithm based on Hough transform. The azimuth measurement accuracy of the sensor is then calibrated using a facility that is able to get higher azimuth accuracy by measurement of the star light. To verify the navigation capability of the developed system, we use a dynamic experiment, where the prototype is installed on the top of a vehicle and its navigation performance is compared with GNSS.

scholarly journals CCD polarization imaging sensor with aluminum nanowire optical filters

2010 ◽  
Vol 18 (18) ◽  
pp. 19087 ◽  
Author(s):  
Viktor Gruev ◽  
Rob Perkins ◽  
Timothy York
Keyword(s):  
Optical Filters ◽  
Polarization Imaging ◽  
Imaging Sensor

Polarization imaging sensor for cell and tissue imaging and diagnostics

2006 ◽  
Author(s):  
Hongzhi Zhao ◽  
Qiushui Chen ◽  
Uwe Klimach ◽  
Yingyin Kevin Zou ◽  
Jianhua Xuan
Keyword(s):  
Tissue Imaging ◽  
Polarization Imaging ◽  
Imaging Sensor

Differential polarization imaging of sickled cells

1988 ◽  
Vol 46 ◽  
pp. 62-63
Author(s):  
Marcos F. Maestre
Keyword(s):  
Optical Properties ◽  
Theoretical Approach ◽  
Polarized Light ◽  
Polarization Microscopy ◽  
Spectroscopic Techniques ◽  
Polarization Imaging ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Microscopic Scale ◽  
Chiral Structures

Recently we have developed a form of polarization microscopy that forms images using optical properties that have previously been limited to macroscopic samples. This has given us a new window into the distribution of structure on a microscopic scale. We have coined the name differential polarization microscopy to identify the images obtained that are due to certain polarization dependent effects. Differential polarization microscopy has its origins in various spectroscopic techniques that have been used to study longer range structures in solution as well as solids. The differential scattering of circularly polarized light has been shown to be dependent on the long range chiral order, both theoretically and experimentally. The same theoretical approach was used to show that images due to differential scattering of circularly polarized light will give images dependent on chiral structures. With large helices (greater than the wavelength of light) the pitch and radius of the helix could be measured directly from these images.

X-Ray Polarization Imaging

2003 ◽  
Author(s):  
Andrew D. Maidment
Keyword(s):  
Polarization Imaging ◽  
X Ray
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