21 research outputs found
Testing for Breaks in Cointegrated Panels - with an Application to the Feldstein-Horioka Puzzle
Exchange Rate Fluctuations and Labour Market Adjustments in Canadian Manufacturing Industries
Evaluating the C-CAPM and the Equity Premium Puzzle at Short and Long Horizons: A Markovian Bootstrap Approach
Necessary and sufficient conditions for the moving blocks bootstrap central limit theorem of the mean
Photomatch: An open-source multi-view and multi-modal feature matching tool for photogrammetric applications
Automatic feature matching is a crucial step in Structure-from-Motion (SfM) applications for 3D reconstruction purposes. From an historical perspective we can say now that SIFT was the enabling technology that made SfM a successful and fully automated pipeline. SIFT was the ancestor of a wealth of detector/descriptor methods that are now available. Various research activities have tried to benchmark detector/descriptors operators, but a clear outcome is difficult to be drawn. This paper presents an ISPRS Scientific Initiative aimed at providing the community with an educational open-source tool (called PhotoMatch) for tie point extractions and image matching. Several enhancement and decolorization methods can be initially applied to an image dataset in order to improve the successive feature extraction steps. Then different detector/descriptor combinations are possible, coupled with different matching strategies and quality control metrics. Examples and results show the implemented functionality of PhotoMatch which has also a tutorial for shortly explaining the implemented methods