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http://dx.doi.org/10.7848/ksgpc.2014.32.6.591

Setting of the Operating Conditions of Stereo CCTV Cameras by Weather Condition  

Moon, Kwang (Department of Smart ICT Convergence, Konkuk University)
Pyeon, Mu Wook (Department of Civil Engineering, Social Eco-Tech Institute)
Lee, Soo Bong (Department of Advanced Technology Fusion, Konkuk University)
Lee, Do Rim (Advance Tech. Research Institute, LoDICS Co.)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.32, no.6, 2014 , pp. 591-597 More about this Journal
Abstract
A wide variety of image application methods, such as aerial image, terrestrial image, terrestrial laser, and stereo image point are currently under investigation to develop three-dimensional 3D geospatial information. In this study, matching points, which are needed to build a 3D model, were examined under diverse weather conditions by analyzing the stereo images recorded by closed circuit television (CCTV) cameras installed in the U-City. The tests on illuminance and precipitation conditions showed that the changes in the number of matching points were very sensitively correlated with the changes in the illuminance levels. Based on the performances of the CCTV cameras used in the test, this study was able to identify the optimal values of the shutter speed and iris. As a result, compared to an automatic control mode, improved matching points may be obtained for images filmed using the data obtained through this test in relation to different weather and illuminance conditions.
Keywords
Stereo CCTV; Matching Points; SIFT; Illuminance; Camera Setting;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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