A new automatic matching method of SAR data for DEM extraction

Xu Xing Ou; Shu Ning

doi:10.1117/12.813193

11 November 2008 A new automatic matching method of SAR data for DEM extraction

Xu Xing Ou, Shu Ning

Proceedings Volume 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses; 71462P (2008) https://doi.org/10.1117/12.813193
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

In this paper, pixel based matching methods, and the fact that registering accuracy of phase values, for their direct function in DEM extraction, has more impact on DEM results are discussed. Then the authors analyzed the disadvantages of traditional phase average gradient function method, which can be concluded as human interference required and its sensitivity to noises inducing low accuracy. To get avoid of those shortcomings, a modified phase average gradient function method was proposed in which the theory of pyramid matching was also brought in to make sure of reliability and lessen the amount of computation. Experiments are carried out and results, in the form of coherence maps, of the new method were compared with that of accuracy testified largest correlation coefficient method in existed software. And the conclusion that it can gain better results was drawn. At last, further developments that can be made in the future were discussed.

Citation Download Citation

Xu Xing Ou and Shu Ning "A new automatic matching method of SAR data for DEM extraction", Proc. SPIE 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses, 71462P (11 November 2008); https://doi.org/10.1117/12.813193

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