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VIS-NIR, SWIR and LWIR Imagery for Estimation of Ground Bearing Capacity

AuthorsFernández Saavedra, Roemi E. ; Montes, Héctor ; Salinas, Carlota
KeywordsGround bearing capacity
Visible-Near InfraRed (VIS-NIR)
Long-Wave InfraRed (LWIR)
Short-Wave InfraRed (SWIR)
Soil moisture
Optical filters
Soil compaction
Issue Date15-Jun-2015
PublisherMultidisciplinary Digital Publishing Institute
CitationSensors 15(6): 13994-14015 (2015)
AbstractGround bearing capacity has become a relevant concept for site-specific management that aims to protect soil from the compaction and the rutting produced by the indiscriminate use of agricultural and forestry machines. Nevertheless, commonly known techniques for its estimation are cumbersome and time-consuming. In order to alleviate these difficulties, this paper introduces an innovative sensory system based on Visible-Near InfraRed (VIS-NIR), Short-Wave InfraRed (SWIR) and Long-Wave InfraRed (LWIR) imagery and a sequential algorithm that combines a registration procedure, a multi-class SVM classifier, a K-means clustering and a linear regression for estimating the ground bearing capacity. To evaluate the feasibility and capabilities of the presented approach, several experimental tests were carried out in a sandy-loam terrain. The proposed solution offers notable benefits such as its non-invasiveness to the soil, its spatial coverage without the need for exhaustive manual measurements and its real time operation. Therefore, it can be very useful in decision making processes that tend to reduce ground damage during agricultural and forestry operations.
Publisher version (URL)http://dx.doi.org/10.3390/s150613994
Appears in Collections:(CAR) Artículos
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