Title :
Comparison and analysis of transformation models on UAV image mosaic
Author :
Yaping Wang ; Peihua Shao ; Yijin Chen
Author_Institution :
Coll. of Geosci. & Surveying Eng., China Univ. of Min. & Technol. (Beijing), Beijing, China
Abstract :
In the precondition of getting the same feature points, the selection of different transformation models can greatly affect the speed and effectiveness of image mosaic. In this paper, the focus was on the determination of a transformation model from a given set of feature points. The high-resolution images captured by UAV (unmanned aerial vehicle) in the water-resource-investigation field were selected as source data. Four different transformation models-Affine Transformation, Quadratic Polynomial Transformation, Delaunay Triangulation and Homography Matrix were compared and analyzed for the optimal mosaic model of stereo pair in this situation. The experiment results indicated that Homography Matrix was the best in this case. Finally, it was given some useful advice for the selection of transformation models for the entire air strip mosaic.
Keywords :
affine transforms; autonomous aerial vehicles; image resolution; image segmentation; matrix algebra; mesh generation; mobile robots; robot vision; Delaunay triangulation; UAV image mosaic; affine transformation; air strip mosaic; high-resolution images; homography matrix; quadratic polynomial transformation; stereo pair optimal mosaic model; transformation models; unmanned aerial vehicle; water-resource-investigation field; Analytical models; Atmospheric modeling; Educational institutions; Feature extraction; Image registration; Polynomials; Transmission line matrix methods; Affine Transformation; Delaunay Triangulation; Homography Matrix; Quadratic Polynomial Transformation; UAV image mosaic;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885216
