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- W2054610880 abstract "Developing image acquisition requirements is a major part of the Autonomous Feature and Star Tracking (AFAST) project's work in advancing sensor technologies for planetary exploration. Sensing and detecting desired planetary features also involve topographic and photometric characterization of celestial bodies. The photometric study can provide felicitous designs of optics, focal plane array, and processing pertaining to feature extraction and tracking. In this paper, we present the results based on our preliminary study and implementation of photometric modeling on the AFAST's SGI-based 3D graphics testbed. Specifically, a computer-generated topographical model of Phobos is used since the photometry of Phobos have been studied in great details. The photometric function derived is mapped onto the computer-generated topographic model. Using the photometric model and specific camera parameters, an accurate CCD pixel response to target irradiance can then be calculated. This pixel information can be used by the feature tracking algorithm, and sensitivity to signal-to-noise ratio can then be determined." @default.
- W2054610880 created "2016-06-24" @default.
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- W2054610880 date "1995-06-12" @default.
- W2054610880 modified "2023-10-03" @default.
- W2054610880 title "<title>Topographic/photometric model of small bodies</title>" @default.
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- W2054610880 doi "https://doi.org/10.1117/12.211506" @default.
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