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[1]NIU Liang,YANG Qin-ke.Calculation and Application of Histogram Similarity Measure in DEM Scaling[J].Research of Soil and Water Conservation,2010,17(03):120-125.

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Calculation and Application of Histogram Similarity Measure in DEM Scaling

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 03 Page number: 120-125 Column: Public date: 2010-06-20

Title:: Calculation and Application of Histogram Similarity Measure in DEM Scaling

Author(s):: NIU Liang, YANG Qin-ke; College of Urban and Environment, Northwest University, Xi’an 710127, China

Keywords:: histogram; similarity measure; DEM scaling; resolution

CLC:: TP751.1

DOI:: -

Abstract:: Based on the needs that determination of resolution of the different cellsize DEM generated by DEM scaling, using histogram similarity method of calculation, the DEMs with different grid sizes compare to the DEMs of the topographic maps with different scales corresponding resolution to determine the DEM resolution generated by scaling. In this paper, four different similarity calculation method, L₁ distance, L₂ distance, χ² distance, and the histogram intersection, experimental results show that the similarity calculation of the histogram can effectively determine the similarity of the DEM data to determine the DEM resolution. Four kinds of calculation, the L₁ distance than the histogram intersection has a broader scope of application and more intuitive than the L₂ distance and χ² distance.

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