Hexagon Geospatial
MENU

Spatial Modeler Tutorials

Learn more about our products, find answers, get the latest updates, and connect with other Hexagon Geospatial product users, or get support from our professional service team.
Showing results for 
Search instead for 
Do you mean 

WorldView-2 Tasseled Cap transformation

by Technical Evangelist ‎01-30-2019 12:41 PM - edited ‎01-30-2019 01:26 PM (314 Views)

Download model

Description:

 

The Tasseled Cap Transformation is a technique commonly used in land cover mapping or other classification projects. It takes the linear combination of satellite imagery bands and a specialized coefficient matrix to create a n-band image with the first 3 bands containing the majority of the useful information, similar to Principal Component Analysis. The first three bands created are generally held to represent Brightness, Greenness and Wetness. The coefficient matrix, which is unique to each imaging sensor, is based on image statistics and empirical observations.

 

WorldView-2 top-left, Brightness top-right, Greenness bottom-left, Wetness (and Shadows) bottom-right
wv2_results.PNG

 

For further information on the Tasselled Cap transformation please refer to these articles:

 

https://community.hexagongeospatial.com/t5/Spatial-Modeler-Tutorials/Sentinel-2-Tasseled-Cap-transfo...

https://community.hexagongeospatial.com/t5/Spatial-Modeler-Tutorials/Tasseled-Cap-Transformation-for...

 

...and the on-line Help:

 

https://hexagongeospatial.fluidtopics.net/reader/~P7L4c0T_d3papuwS98oGQ/ilRUrLFel2D0IQOevbNrAw

 

This article provides the Spatial Model for transforming WorldView-2 (and WorldView-3) 8-band imagery to the Tasseled Cap image space using the coefficients described in

 

Yarbrough, Lance & , Navulur & , Ravi. (2014). Presentation of the Kauth–Thomas transform for WorldView-2 reflectance data. Remote Sensing Letters. 5. 10.1080/2150704X.2014.885148.

 

https://www.researchgate.net/publication/263369074_Presentation_of_the_Kauth-Thomas_transform_for_Wo...

 

TasseledCap_Worldview_2_3_v16_5_1.gmdx
wv_tc_model.PNG

 

Input data should ideally have been corrected to Reflectance prior to input to this Spatial Model.

Comments
by Mecki
on ‎05-31-2019 01:00 AM

Hello Ian,

 

do you know, if tasseled cap transformation is possible for PlanetScope Imagery?

 

 

Thanks

Courses
Contributors