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Joint analysis of visible and infrared images

October 1, 2005

Analysis of data combining daytime visible reflected, daytime IR emitted, and nighttime IR emitted images allows us to isolate the physical effects of topography, albedo, and thermal inertia. To a good approximation, these physical influences interact linearly so that maps showing topographic shading, albedo, and relative thermal inertia can be produced by simple algebraic manipulation of the co-registered images. The shading map resembles an airbrush, shaded relief portrayal of the surface, and can be used as the input for quantitative reconstruction of topography by photoclinometry (shape-fromshading). We demonstrate the method with imagery from the NASA 2001 Mars Odyssey Thermal Emission Imaging System (THEMIS), a dataset that could support mapping most of Mars in this way at 100 m resolution.

Publication Year 2005
Title Joint analysis of visible and infrared images
DOI 10.14358/PERS.71.10.1167
Authors Randolph L. Kirk, Laurence A. Soderblom, Glen E. Cushing, Timothy A. Tituus
Publication Type Article
Publication Subtype Journal Article
Series Title Photogrammetric Engineering and Remote Sensing
Index ID 70201354
Record Source USGS Publications Warehouse
USGS Organization Astrogeology Science Center