A new approach to real-time mosaicing of aerial images
Kekeç, İbrahim Taygun and Yıldırım, Alper and Ünel, Mustafa (2014) A new approach to real-time mosaicing of aerial images. Robotics and Autonomous Systems, 62 (12). pp. 1755-1767. ISSN 0921-8890 (Print) 1872-793X (Online)
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Official URL: http://dx.doi.org/10.1016/j.robot.2014.07.010
We present a new image mosaicing technique that uses sequential aerial images captured from a camera and is capable of creating consistent large scale mosaics in real-time. To find the alignment of every new image, we use all the available images in the mosaic that have intersection with the new image instead of using only the previous one. To detect image intersections in an efficient manner, we utilize ‘Separating Axis Theorem’, a geometric tool from computer graphics which is used for collision detection. Moreover, after a certain number of images are added to the mosaic, a novel affine refinement procedure is carried out to increase global consistency. Finally, gain compensation and multi-band blending are optionally used as offline steps to compensate for photometric defects and seams caused by misregistrations. Proposed approach is tested on some public datasets and it is compared with two state-of-the-art algorithms. Results are promising and show the potential of our algorithm in various practical scenarios.
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