Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B4, 45-50, 2016
https://doi.org/10.5194/isprs-archives-XLI-B4-45-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
10 Jun 2016
DETECTION OF ORTHOIMAGE MOSAICKING SEAMLINES BY MEANS OF WAVELET TRANSFORM
K. Pyka AGH University of Science and Technology, Faculty of Mining Surveying and Environmental Engineering, Department of Geoinformation, Photogrammetry and Remote Sensing of Environment, Krakow, Poland
Keywords: Orthoimage, Seamline, Orthomosaic, Wavelet transform, Undecimated DWT, Cost analysis Abstract. The detection of orthoimage mosaicking seamlines by means of wavelet transform was examined. Radiometric alignment was omitted, giving priority to the issue of seamlines which bypass locations where there is a parallax between orthoimages. The importance of this issue is particularly relevant for images with very high resolution. In order to create a barrier image between orthoimages, the redundant wavelet transform variant known as MODWT-MRA was used. While more computationally complex than the frequently used DWT, it enables very good multiresolution edge detection. An IT prototype was developed on the basis of the described concept, and several cases of seamline detection were tested on the basis of data with a resolution of 10 cm to 1 m. The correct seamline location was obtained for each test case. This result opens the door to future expansion of the radiometric alignment method, which is also based on wavelets.
Conference paper (PDF, 1866 KB)


Citation: Pyka, K.: DETECTION OF ORTHOIMAGE MOSAICKING SEAMLINES BY MEANS OF WAVELET TRANSFORM, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B4, 45-50, https://doi.org/10.5194/isprs-archives-XLI-B4-45-2016, 2016.

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