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误差分布对PCA粗差探测算法的影响 被引量:2

Effect of Error Distribution on PCA for Detecting Gross Errors in DEM
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摘要 从误差分析的角度出发建立2种粗差模型:独立粗差模型和相关粗差模型,采用MATLAB随机数发生器生成模拟粗差数据。并利用主成分分析(PCA)算法进行检验,结果表明,误差的空间相关特性降低了PCA算法的敏感度,为粗差的探测带来困难,但总体上具有一定的实用性。 Two error models are built in the test:spike-like error model;pyramid-like error model,which are simulated in MATLAB.Principal component analysis is used to detect the two gross errors.The result shows that the space correlation of error reduces the efficiency of the PCA.Some data polluted by error can not be found,which results in the distortion of original data.
出处 《桂林工学院学报》 北大核心 2009年第3期374-377,共4页 Journal of Guilin University of Technology
基金 国家自然科学基金资助项目(40271092) 广西教育厅科研项目(200808LX348) 广西工学院院管基金项目(500634)
关键词 数字高程模型 误差分布 粗差探测 主成分分析法 digital elevation model(DEM) error distribution gross error detection principal component analysis(PCA)
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参考文献6

  • 1Jackson Donald A, Chen Yong. Robust principal component analysis and outlier detection with ecological data [ J ]. Environmetrics ,2004,15 ( 2 ) : 129 - 139.
  • 2Hawkins D M. The detection of errors in muhivariate data using principal components [ J ]. Journal of the American Statistical Association, 1974,69:340 - 344.
  • 3Lopez C, Kaplan E. Principal component analysis applied for outlier location and the missing value problem using surface wind and pressure data[ DB/OL]. [2008 - 11 - 15 ]. http:// www. ring. edu. uy/ncarlos/papers/rep93_5/viento. htm.
  • 4杨晓云,岑敏仪,梁鑫.DEM粗差探测算法在铁路线路测量中的应用[J].桂林工学院学报,2007,27(4):539-541. 被引量:1
  • 5Ostman A. Quality control of photogrammetrically sampled Digital Elevation Model [ J ]. Photogrammetric Record, 1987,12 : 333 - 341.
  • 6Bethel J S, Mikhail E M. Terrain surface approximation and online quality assessment [ J ]. International Archives of Photogrammetry and Remote Sensing,Commission Ⅲ,1984,25(A3a) :23 -32.

二级参考文献7

  • 1杨晓云,顾利亚,岑敏仪,李志林.基于不同大小窗口的移动曲面拟合法探测不规则DEM粗差的一种方法[J].测绘学报,2005,34(2):148-153. 被引量:17
  • 2Hannah M J. Error detection and correction in Digital Terrain Models [ J]. Photogrammetric Engineering and Remote Sensing, 1981 (47): 63-69.
  • 3Stman A. Quality control of photogrammetrically sampled Digital Elevation Models[ J]. Photogtmnmetric Record,1987(12) :333 - 341.
  • 4Felicisimo A. Parametric statistical method for error detection in digital elevation models [ J]. ISPRS Journal of Photogrammetry and Remote Sensing, 1994, 49:29-33.
  • 5LoPEZ, C. Locating some types of random errors in Digital Terrain Models [ J ]. International Journal of Geographic Information Science, 1997 ( 11 ) : 677 - 698.
  • 6LoPEZ, C. On the improving of elevation accuracy of digital elevation models : a comparison of some error detecting procedures [J]. Transactions in GIS, 2000 (g) : 43 -64.
  • 7LoPEZ, C. An experiment on elevation accuracy improvement of photogrammetrieally derived DEM[ J]. International Journal of Geographical Information Science, 2002 ( 4 ) : 361 - 375.

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