Patent
Sky Polarization and Sun Sensor System and Method
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TLDR
In this article, a method and system for determining a new orientation and/or position of an object comprises a sky polarimeter configured to record image data of the sky, a signal processing unit, and logic configured to receive and store in memory the image data received from the sky polarimeters.Abstract:
A method and system for determining a new orientation and/or position of an object comprises a sky polarimeter configured to record image data of the sky. a signal processing unit, and logic configured to receive and store in memory the image data received from the sky polarimeter. The logic calculates the Stokes parameters (SO, S1, S2,), DoLP, and AoP from the image data, detects obscurants and filters the obscurants (such as clouds and trees) from the image data to produce a filtered image. The logic is further configured to find the Sun and zenith in the filtered image, and to determine the roll, pitch, yaw, latitude and longitude of the object using the filtered image.read more
Citations
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Journal ArticleDOI
Polarized skylight-based heading measurements: a bio-inspired approach.
TL;DR: The results obtained in outdoor field studies show that the celestial compass gives excellent results at a very low computational cost, which makes it highly suitable for autonomous outdoor navigation purposes.
Journal ArticleDOI
Design and calibration model of a bioinspired attitude and heading reference system based on compound eye polarization compass
TL;DR: A bioinspired polarization-based attitude and heading reference system (PAHRS) is presented, and the integration strategy between the compound eye polarization compass and IMU is proposed to enhance the environmental adaptability of the polarization compass.
Patent
3-d polarimetric imaging using a microfacet scattering model to compensate for structured scene reflections
TL;DR: In this paper, a microfacet scattering model is used to develop the functional form of a polarized bidirectional reflectance distribution function (BRDF) of the object surface.
Patent
Information acquiring device and information acquiring method
TL;DR: In this article, a reflection information generating unit 30 generates reflection information indicating a reflection component, from the polarized images in the plurality of polarization directions as acquired by the polarized image acquiring unit 20.
References
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