Anisotropic Reflectance Correction of SPOT-3 HRV Imagery
نویسنده
چکیده
The problem of anisotropic reflectance in mountainous terrain is well known. It was required to determine the efficacy of anisotropic reflectance correction (ARC) of imagery acquired over the western Himalaya. The Minnaert correction procedure was evaluated using a single Minnaert constant (k), locally computed ks and land cover-computed ks. Findings illustrate the need for computing ks, such that anisotropic reflectance caused by topography and land cover is accounted for. This resulted in a significant reduction in the topographic effect. The results indicate that land cover-computed k values can be used effectively for anisotropic reflectance correction. Bishop, M.P., and Colby, J.D. (2002). Anisotropic Reflectance Correction of SPOT-3 HRV Imagery. International Journal of Remote Sensing, 23(10):2125-2131. (May 20, 2002) Published by Taylor & Francis (ISSN: 1366-590). DOI: 10.1080/01431160110097231 Anisotropic re ectance correction of SPOT-3 HRV imagery (Received 13 July 2000; in nal form 3 July 2001) Abstract. The problem of anisotropic re ectance in mountainous terrain is well known. It was required to determine the eYcacy of anisotropic re ectance correction (ARC) of imagery acquired over the western Himalaya. The Minnaert correction procedure was evaluated using a single Minnaert constant (k), locally computed ks and land cover-computed ks. Findings illustrate the need for computing ks, such that anisotropic re ectance caused by topography and land cover is accounted for. This resulted in a signi cant reduction in the topographic eVect. The results indicate that land cover-computed k values can be used eVectively for anisotropic re ectance correction. The problem of anisotropic re ectance in mountainous terrain is well known. It was required to determine the eYcacy of anisotropic re ectance correction (ARC) of imagery acquired over the western Himalaya. The Minnaert correction procedure was evaluated using a single Minnaert constant (k), locally computed ks and land cover-computed ks. Findings illustrate the need for computing ks, such that anisotropic re ectance caused by topography and land cover is accounted for. This resulted in a signi cant reduction in the topographic eVect. The results indicate that land cover-computed k values can be used eVectively for anisotropic re ectance correction.
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