ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., III-1, 91-98, 2016
https://doi.org/10.5194/isprs-annals-III-1-91-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
01 Jun 2016
TOWARDS FAST MORPHOLOGICAL MOSAICKING OF HIGH-RESOLUTION MULTI-SPECTRAL PRODUCTS – ON IMPROVEMENTS OF SEAMLINES
Tobias Storch, Peter Fischer, Sebastian Fast, Philipp Serr, Thomas Krauß, and Rupert Müller German Aerospace Center (DLR), Earth Observation Center (EOC), Münchener Str. 20, 82234 Weßling, Germany
Keywords: Optical Remote Sensing, High-Resolution Product, Mosaic, Morphological Image Processing, Seamline, Quasi-Linear Runtime Abstract. The complex process of fully automatically establishing seamlines for the fast production of high-quality mosaics with high-amount of high-resolution multi-spectral images is detailed and improved in this paper. The algorithm is analyzed and a quasi-linear runtime in the number of considered pixels is proven for all situations. For typical situations the storage is even essentially smaller from a complexity theoretical perspective. Improvements from algorithm practical perspective are specified, too. The influence of different methods for the determination of seamlines based on gradients is investigated in detail for three Sentinel-2 products. The studied techniques cover well-known ones normally based on a single band. But also more sophisticated techniques based on multiple bands or even taking additional external geo-information data are taken into account. Based on the results a larger area covered by Image2006 orthorectified products with data of the Resourcesat-1 mission is regarded. The feasibility of applying advanced subordinated methods for improving the mosaic such as radiometric harmonization is examined. This also illustrates the robustness of the improved seamline determination approaches.
Conference paper (PDF, 1422 KB)


Citation: Storch, T., Fischer, P., Fast, S., Serr, P., Krauß, T., and Müller, R.: TOWARDS FAST MORPHOLOGICAL MOSAICKING OF HIGH-RESOLUTION MULTI-SPECTRAL PRODUCTS – ON IMPROVEMENTS OF SEAMLINES, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., III-1, 91-98, https://doi.org/10.5194/isprs-annals-III-1-91-2016, 2016.

BibTeX EndNote Reference Manager XML