Comparison of tasselled cap components of images from Landsat 5 Thematic Mapper and Landsat 7 Enhanced Thematic Mapper Plus. Issue 2 (2nd July 2016)

• Record Type: Journal Article
• Authors: Liu, Qingsheng; Liu, Gaohuan; Huang, Chong; Xie, Chuanjie; Chu, Lin; Shi, Lei
• Is Part Of: Journal of spatial science. Volume 61:Issue 2(2016)
• Page Start: 351
• Page End: 365
• Publication Date: 2016-07-02
• Subjects: Tasselled cap transformation -- Landsat 5 TM -- Landsat 7 ETM+ -- tasselled cap coefficients -- comparison analysis; Geographic information systems -- Periodicals; Cartography -- Periodicals; Surveying -- Periodicals; Geodesy -- Periodicals; Photogrammetry -- Periodicals; Cartography; Geodesy; Geographic information systems; Photogrammetry; Surveying; Periodicals; 526.05
• DOI: 10.1080/14498596.2015.1124810
• Languages: English
• ISSNs: 1449-8596

Abstract

Abstract: Use of the tasselled cap transformation (TCT) is widely accepted in the remote sensing community, but there is concern whether the TCT components from each unique tasselled-cap-like feature space from different sensors are directly comparable. This study compared the differences of the TCT components from Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced TM Plus (ETM+) images with different TCT coefficients from paired images. The results demonstrated that time series analysis of Landsat images using the TCT components derived from Landsat 5 TM and Landsat 7 ETM+ digital numbers (DNs) or at-satellite reflectance could introduce errors. Through converting Landsat 5 TM to Landsat 7 ETM+ DNs prior to the TCT transformation, the RMSEs were reduced by >62 percent. Overall, it was better to derive the TCT components from at-satellite reflectance images, normalised by relative radiometric correction, based on the TCT coefficients for Landsat 7 ETM+ at-satellite reflectance.