DOI: 10.1016/j.jag.2015.11.019
Scopus记录号: 2-s2.0-84988735799
论文题名: Evaluation of a rule-based compositing technique for Landsat-5 TM and Landsat-7 ETM+ images
作者: Lück W ; , van Niekerk A
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2016
卷: 47 起始页码: 1
结束页码: 14
语种: 英语
英文关键词: Image compositing
; Landsat
; Spectral rule-based classification
Scopus关键词: image analysis
; image classification
; imagery
; land cover
; Landsat thematic mapper
; NDVI
; optimization
; spectral analysis
英文摘要: Image compositing is a multi-objective optimization process. Its goal is to produce a seamless cloud and artefact-free artificial image. This is achieved by aggregating image observations and by replacing poor and cloudy data with good observations from imagery acquired within the timeframe of interest. This compositing process aims to minimise the visual artefacts which could result from different radiometric properties, caused by atmospheric conditions, phenologic patterns and land cover changes. It has the following requirements: (1) image compositing must be cloud free, which requires the detection of clouds and shadows, and (2) the image composite must be seamless, minimizing artefacts and visible across inter image seams. This study proposes a new rule-based compositing technique (RBC) that combines the strengths of several existing methods. A quantitative and qualitative evaluation is made of the RBC technique by comparing it to the maximum NDVI (MaxNDVI), minimum red (MinRed) and maximum ratio (MaxRatio) compositing techniques. A total of 174 Landsat TM and ETM+ images, covering three study sites and three different timeframes for each site, are used in the evaluation. A new set of quantitative/qualitative evaluation techniques for compositing quality measurement was developed and showed that the RBC technique outperformed all other techniques, with MaxRatio, MaxNDVI, and MinRed techniques in order of performance from best to worst. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80120
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Forest Sense cc, 23 Riverdale, Morgenster Rd., Western CapeSomerset West, South Africa; Department of Geography and Environmental Studies, University of Stellenbosch, South Africa
Recommended Citation:
Lück W,, van Niekerk A. Evaluation of a rule-based compositing technique for Landsat-5 TM and Landsat-7 ETM+ images[J]. International Journal of Applied Earth Observation and Geoinformation,2016-01-01,47