Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 351204
Title The 'Stained Glass Procedure', a new method to compare classification performance of images acquired with different pixel sizes
Author(s) Addink, E.A.; Clevers, J.G.P.W.; Jong, S.M. de; Epema, G.F.; Meer, F.D. van der; Skidmore, A.K.; Bakker, W.H.
Source International Journal of applied Earth Observation and Geoinformation 8 (2006)4. - ISSN 0303-2434 - p. 237 - 245.
DOI http://dx.doi.org/10.1016/j.jag.2005.10.003
Department(s) Laboratory of Geo-information Science and Remote Sensing
Resource Ecology
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2006
Keyword(s) land-cover - spatial-resolution
Abstract Objective comparison of classification performance of earth observation images, acquired at different spatial resolutions (e.g. NOAA-AVHRR, IRS-MOS, IRS-WiFS, Landsat-TM, IRS-LISS), is complicated because both class definition and training site selection are hampered by the inherent scale differences. This paper presents a new, generic method to compare the information content of such a set of images, the "Stained Glass Procedure". It overcomes the stated problems by computing the scale-dependent, internal spectral variation in an image and by using this as an indicator for land cover information. The Stained Glass Procedure creates segments in the images and calculates the internal spectral variation in a high-spatial-resolution image for each segment. For each image from the set the average variance, weighted to area, is calculated. The Stained Glass Procedure can be used to predict the performance of sensors that are not available, yet, or to roughly determine the optimal spatial resolution for the classification of a specific area. The procedure was applied to images with pixel sizes ranging from 23 to 1100 m. Classification detail of Envisat-MERIS (300 m pixel size), not included in the image set, could be predicted accurately using the Stained Glass Procedure. The Stained Glass Procedure applies one procedure to all images, without any subjective decision during the analysis, thus offering a method to compare images with different pixel sizes in terms of classification detail that is truly objective
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