نتایج جستجو برای: by aerial photos
تعداد نتایج: 7062785 فیلتر نتایج به سال:
-.. .. _Measuring Waterfowl Habitat ~pulation Changes From Aerial Photos Harvey \IT. Miller Nebraska Game Commission Bassett, Nebraska A survey was conducted in 1953 to determine the feasibility of using aerial photography to measure the trends in available waterfowl habitat in the Nebraska Sandhills. This pilot survey included 96 one-square-mile sections systematically distributed over the are...
The aerial photos of Aquileia, especially the orthophotos of the last decade, allow for a new and broad vision of the ancient city’s extent. Together with V.Roberto we published some new findings. More recent orthophotos (2010), after data filtering and image processing, allow for newer insights into the roman city map .
We present a model to describe the collective motion of barchan dunes in a field. Our model is able to reproduce the observation that a typical dune stays confined within a stripe. We also obtain some of the pattern structures which ressemble those observed from aerial photos which we do analyse and compare with the specific field of Laâyounne.
[1] We measure the displacement field resulting from the 1975–1984 Krafla rifting crisis, NE Iceland, using optical image correlation. Images are processed using the COSI-Corr software package. Surface extension is accommodated on normal faults and fissures which bound the rift zone, in response to dike injection at depth. Correlation of declassified KH-9 spy and SPOT5 satellite images reveals ...
This paper develops a model for automated matching of vehicles between aerial photos. We exploit the overlap from frame-to-frame in a sequence of aerial photos. The problem, in essence, is to determine if vehicles A, B, C, . . . in one photo, match vehicles X, Y, and Z in a temporally lagged second photo. The method is specifically applied to large trucks (tractor–trailer combinations). If a ma...
This paper describes an automatic change detection of roads using aerial photos and digital maps. The task is based on the idea that one can derive information about the changes strictly from its imagery once the geometric relationship among data sets is correctly recovered. The goal of research is achieved by using the Modified Iterated Hough Transform (MIHT) algorithm, the result of which not...
The planning of any engineering project requires information on land use, topography, soils, drainage, transportation, urban de velopment, and many other factors before actual location and design can be accomplished or field surveys undertaken. To obtain this preliminary information engineers surveyors, and planning com missions need maps. They need planimetric maps showing land use, or they ...
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