文章基本信息

标题：Research on Visualized Data Quality Control Methods of Ground Object Spectrum in Yanzhou Mining Area
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作者：Junfu Fan ; Min Ji ; Ting Li 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII - Part 2
页码：212-217
出版社：Copernicus Publications
摘要：Errors or outliers are prone to be made on account of various accidental factors or system errors in the observation process of ground object spectrums. It is necessary to carry on some rigorous gross error detection and quality control measures on field spectroscopy data before which is conducted to further spectral analysis. To this end, in this paper, in accordance with measured data of several typical crops in Yanzhou mining area, a theory of cluster analysis for field spectroscopy data quality controlling was proposed and 4 different cluster methods included Statistical distance, Aitchison distance, Pearson's correlation coefficient and Multidimensional Vector Cosine were used in the gross error visualized detection. For the common characteristic bands of different spectrum data, the goal of visualized detection and identification of outliers was achieved by means of the statistical method of box-and-whisker plots. Outliers which were identified can be getting rid of in the use of several self-developed graphic interactive controls based on GDI+ technology. The theory proposed in this paper provided effective quality assurance for in-depth spectroscopy analysis
关键词：Ground Object Spectrum; Data Quality Control; Cluster Analysis; Box-and-Whisker Plots; Gross Error Detection