Title :
Research on multi-resolution modeling of DEM based on different wavelet basis
Author :
Feng Zhou ; Guanghong Gong ; Peng Ding ; Wen Shi ; Xiaole Ma
Author_Institution :
Adv. Simulation Technol. Aviation Key Lab., Beihang Univ., Beijing, China
Abstract :
According to the property of DEM, on the base of multi-resolution analysis algorithm this paper presents a method for multi-resolution modeling based on wavelet analysis. Then the paper analyzes the principles for choosing the fittest wavelet function and boundary extension mode. The paper also provide a way to choose the best resolution depended on the viewpoint and the viewing angle The paper suggests to control the threshold to build data pyramid. By some experiments, this method is proved to be efficient and robustness.
Keywords :
digital elevation models; geophysical image processing; image resolution; wavelet transforms; DEM multiresolution modeling; boundary extension mode; data pyramid; digital elevation model; multiresolution analysis algorithm; wavelet analysis; wavelet function; Educational institutions; Image reconstruction; Laboratories; Signal resolution; Vectors; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Guidance, Navigation and Control Conference (CGNCC), 2014 IEEE Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4799-4700-3
DOI :
10.1109/CGNCC.2014.7007498
