Radargrammetry DEM from RADARSAT imageries and accuracy validation: a case study in Malaysian rainforest areas

De-yong Hu; Jing Li; Yun-hao Chen; Lei Deng; Ku Mohd Noh Hj Ku Ramli; Guang-xiong Peng

doi:10.1117/12.712622

28 October 2006 Radargrammetry DEM from RADARSAT imageries and accuracy validation: a case study in Malaysian rainforest areas

De-yong Hu, Jing Li, Yun-hao Chen, Lei Deng, Ku Mohd Noh Hj Ku Ramli, Guang-xiong Peng

Author Affiliations +

Proceedings Volume 6419, Geoinformatics 2006: Remotely Sensed Data and Information; 641906 (2006) https://doi.org/10.1117/12.712622
Event: Geoinformatics 2006: GNSS and Integrated Geospatial Applications, 2006, Wuhan, China

Abstract

The study site is selected in a Malaysian tropical rainforest area, which consists of a mixture of plain, hilly and mountainous terrain. Digital Elevation Model (DEM) images were generated from nine RADARSAT-1 imageries (F, S and W beam modes) which make up six stereo pair combinations. The DEM accuracies for all the stereo combinations have been validated and compared to each other. The results show that numerous factors affect the final DEM accuracy. In flat areas, the final DEM accuracy is highly correlated to the stereo intersection geometry of the different image combinations. The higher the stereo intersection angle of the same beam mode, the better the accuracy of the final DEM.

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De-yong Hu, Jing Li, Yun-hao Chen, Lei Deng, Ku Mohd Noh Hj Ku Ramli, and Guang-xiong Peng "Radargrammetry DEM from RADARSAT imageries and accuracy validation: a case study in Malaysian rainforest areas", Proc. SPIE 6419, Geoinformatics 2006: Remotely Sensed Data and Information, 641906 (28 October 2006); https://doi.org/10.1117/12.712622

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