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.
Citation Information
| 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 |