Technology and Methodology |
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SCANNING TECHNIQUES FOR GIS DATA INPUTING AND MAPIN GRAPHICS SCANNING SYSTEM |
Di Kaichang |
Center for Remote Sensing in Geology |
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Abstract This paper describes the scanning techniques for GISdata inputing and presents, a new scanning vectorization scheme based on greyscale image processing. Asoftware system named MAPINis developed according to this scheme.The key techniques of the system, such as adaptive line following,automatic image editing, whole image vectorization, sub-pixel location of control points, vector data connection, and so on, are discussed emphatically in the paper. Finally some experimental results are given to illustrate the feasibility of the scheme and the practicality of the system.
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Keywords
Land surface temperature
MODIS
Validation
Sensitivity analysis
ASTER
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Issue Date: 02 August 2011
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[1] 林宗坚,卢健,邸凯昌.基于机算机视觉的专题图读取系统.武汉测绘科技大学学报,1992,17(2):8-17[2] Suzuki S, YamadTa T. MARIS: map recognition input system.Pattern Recognition, 1990, 23(8):919-933[3] Musavi M T et al., A vision based method to automatic map Processing. Pattern Recognition, 1988,21 (4): 319-326[4] Ebi N, Lauterbach B, Bcsslich Ph. Automatic data acquisition from topographic maps using a know-ledge-based image analysis system. ISPRS, Comm. IV, Washington: 1992[5] Di Kaichang, Lin Zongjian, Lu ,]ian. A thematic map reading system. ISPRS Comm. IV, Washington:1992[6] Wen Shimin. Land use statistics using automatic scan digitizing method. ISPRS Comm. IV, Washing-ton:1992 |
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