Title:
Lunar Reflectance Modeling for Terrain Relative Navigation
Lunar Reflectance Modeling for Terrain Relative Navigation
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Author(s)
DeVries, Carl
Christian, John A.
Christian, John A.
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Abstract
Feature matching techniques often encode a brightness pattern from an image
without knowledge of the underlying scene. This makes feature matching difficult
when illumination conditions change significantly between images or are not consistent
with onboard maps. The brightness patterns in images of the lunar surface
can be partially described by a surface reflectance model which can often be parameterized
by quantities known onboard from a sun sensor and calibrated camera.
Unfortunately, these models can be intractable due to their complexity. This work
develops a reduced-order lunar reflectance model for future illumination-informed
feature descriptor development.
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Date Issued
2023-08
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Text
Resource Subtype
Paper
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