Madagascar2011 - 02 - Présentation OTB
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The presentation introduces the Orfeo Toolbox (OTB), an open source library for image processing. It provides functions for tasks like orthorectification, fusion, filtering, segmentation, classification. It also presents applications and Monteverdi, a framework to build processing pipelines interactively. The documentation includes user guides, Doxygen documentation, code examples and a cookbook.
Madagascar2011 - 02 - Présentation OTB
- 1. Presentation of the Orfeo Toolbox (OTB) Stéphane MAY stephane.may@cnes.fr orfeo-toolbox.org 1
- 2. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 2
- 3. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 3
- 4. Why Orfeo Toolbox ? Framework : ORFEO Accompaniment Program Goals : make easier the development of new algorithms, their validation and capitalisation, fill the gap between researchers and ORFEO users CNES is responsible for design and specification Open source software for Image Processing labs, users and the industry OTB= Image processing library with focus on feature extraction Development of OTB functionalities driven by thematic ORFEO user’s need orfeo-toolbox.org 4
- 5. What is OTB ? (1/3) Multi-purpose library for image processing Orthorectification, cartographic projections Image fusion, pan-sharpening Radiometric correction Registration Filtering, segmentation, classification Feature extraction (texture, lines, vegetation indexes) Basic change detection Basic feature extraction Supervised learning Object counting Spatial reasoning Etc.... Many examples and binary applications for specific tasks (open source) Command line or GUI orfeo-toolbox.org 5
- 6. What is OTB ? (2/3) • C++ library based on existing developments OTB Applications External libs Users Monteverdi Library Developpers orfeo-toolbox.org 6
- 7. What is OTB ? (3/3) Main characteristics Extension of the ITK API formalism Open Source (CeCILL licence) Multi-platforms (Linux, UNIX, MS-Windows, MAC OS) Open source libraries : ITK (segm., registr.), GDAL, OSSIM (carto, ortho), VTK, FLTK (GUI), LibSVM (supervised learning & classif.) C++ language ➢Type genericity (int, float, double, complex) - use of templates ➢“Typedef” knowledge required... Always the same formalism to plugin elementary image processing blocks Synchronized pipeline (processing on demand) Streaming and multi-threading process orfeo-toolbox.org 7
- 8. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 8
- 9. Library and Functions Line detection on SAR images orfeo-toolbox.org 9
- 10. Library and Functions Perceptual alignment detection orfeo-toolbox.org 10
- 11. Library and Functions Change detection orfeo-toolbox.org 11
- 12. Library and Functions Denoising Original Blurring Edge preserving orfeo-toolbox.org 12
- 13. Library and Functions Circle extraction orfeo-toolbox.org 13
- 14. Library and Functions Watershed segmentation orfeo-toolbox.org 14
- 15. Library and Functions Object segmentation orfeo-toolbox.org 15
- 16. Library and Functions Supervised classification orfeo-toolbox.org 16
- 17. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 17
- 18. OTB applications otbImageViewerManager otbImageViewer orfeo-toolbox.org 18
- 19. Applications – Image viewer otbImageViewer orfeo-toolbox.org 19
- 20. otbSegmentationApplication (1/3) orfeo-toolbox.org 20
- 21. otbSegmentationApplication (2/3) orfeo-toolbox.org 21
- 22. otbSegmentationApplication (3/3) orfeo-toolbox.org 22
- 23. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 23
- 24. What is Monteverdi ? Framework to interactively build a image processing pipeline Orfeo Toolbox components : Functions and filters Applications Global framework => Monteverdi orfeo-toolbox.org 24
- 25. Monteverdi – Viewer Visualization Viewer orfeo-toolbox.org 25
- 26. Monteverdi Menu Geometry > Orthorectification orfeo-toolbox.org 26
- 27. Monteverdi Menu Geometry > Homologous points extraction orfeo-toolbox.org 27
- 28. Monteverdi Filtering Feature Extraction (1/3) orfeo-toolbox.org 28
- 29. Monteverdi Filtering Feature Extraction (2/3) orfeo-toolbox.org 29
- 30. Monteverdi Filtering Feature Extraction (3/3) ➢ More than 65 features ! Mean, variance, Gradient, spectral angle Textures (energy, entropy, contrast, etc) Morphological filters Radiometric indexes • Vegetation (NDVI, ARVI, etc), Soil, Built up, Water Edge density Mean shift Original data (=> no need to concatenate channels after filtering) Etc ➢ Use before SVM classification for example orfeo-toolbox.org 30
- 31. Monteverdi Filtering Change Detection orfeo-toolbox.org 31
- 32. Monteverdi Menu Learning > SVM classification (1/2) orfeo-toolbox.org 32
- 33. Monteverdi Menu Learning > SVM classification (2/2) orfeo-toolbox.org 33
- 34. Orfeo Toolbox (OTB) Contents of the presentation Introduction Library and functions Presentation of applications Presentation of Monteverdi Documentation orfeo-toolbox.org 34
- 35. Documentation OTB user guide Examples of class use Example of input and output images Doxygen documentation Class interface, hierarchies, methods, etc OTB utilities and applications source code (open source) Amount of examples to build you own application OTB Cookbook Example of applications use orfeo-toolbox.org 35
- 36. OTB cookbook (1/2) orfeo-toolbox.org 36
- 37. OTB user guide (2/2) orfeo-toolbox.org 37
- 38. Useful links Web sites OTB main page http://orfeo-toolbox.org/ OTB download http://sourceforge.net/projects/orfeo-toolbox/ Beta version download http://hg.orfeo-toolbox.org/ Wiki (contributors doc.) http://wiki.orfeo-toolbox.org Bugs reporting http://bugs.orfeo-toolbox.org Blog http://blog.orfeo-toolbox.org orfeo-toolbox.org 38
- 39. Orfeo Toolbox (OTB) Thank you for your attention http://orfeo-toolbox.org/ orfeo-toolbox.org 39