Orfeo Toolbox (OTB) at Foss4G 2009

1,176
-1

Published on

Orfeo Toolbox (OTB) is a library for remote sensing image processing. The project had been initiated by the french space agency (CNES) in 2006 and is under heavy developments and the participation from the open source community is currently growing. The goal is to provide potential users of satellite images with all the tools necessary to use these images[1]. The library is originally targeted at high resolution images acquired by the Orfeo constellation: Pleiades satellites and Cosmo-Skymed but also handles a wide variety of sensors. (wikipedia)

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,176
On Slideshare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
47
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Orfeo Toolbox (OTB) at Foss4G 2009

  1. 1. Introduction Applications and librairy Roadmap Extra Orfeo Toolbox (OTB) from satellite images to geographic information "Orfeo Toolbox is not a black box" FOSS4G 2009 www.orfeo-toolbox.org
  2. 2. Introduction Applications and librairy Roadmap Extra What When Why How Outline 1 Introduction What is it? A bit of history Why doing that? How? 2 Applications and librairy Components Architecture But steep learning 3 What’s coming next? Monteverdi GIS integration Bindings GPU and clusters FOSS4G 2009 www.orfeo-toolbox.org
  3. 3. Introduction Applications and librairy Roadmap Extra What When Why How What is Orfeo Toolbox (OTB)? Initiated by CNES (French Space Agency) Following the feedback from SPOT satellite series In the frame of CNES ORFEO Program to prepare the launch of Pleiades Goal Make the development of new algorithms and their validation easier C++ library: provide many algorithms (pre-processing, image analysis) with a common interface Open-source: free to use, to modify (based on the CeCILL licence) Multiplatform: Windows, Linux, Unix, Mac FOSS4G 2009 www.orfeo-toolbox.org
  4. 4. Introduction Applications and librairy Roadmap Extra What When Why How A bit of History Everything begins (2006) Started in 2006 by CNES (French Space Agency), funding several full-time developers Targeted at high resolution images (Pleiades to be launched in 2010) but with application to other sensors 4 year budget, over 1,000,000e Moving towards user friendly applications (2008) Strong interactions with the user community highlighted that applications for non-programmers are important Several applications for non programmers (with GUI) since early 2008 Several courses (3/5-day courses) given in several French and Belgian institutions (Cesbio, RMA, ENST,...) FOSS4G 2009 www.orfeo-toolbox.org
  5. 5. Introduction Applications and librairy Roadmap Extra What When Why How Does it work? Is it successful so far? OTB user community growing steadily (programmers and application users) Presented at IGARSS and ISPRS in 2008, special session in IGARSS in 2009 There is planning to extend the budget for several more years Value analysis is very positive (cf. Ohloh): re-using is powerful access to the online documentation from August 1st, 2009 until today FOSS4G 2009 www.orfeo-toolbox.org
  6. 6. Introduction Applications and librairy Roadmap Extra What When Why How Why doing that? Why make a multi-million dollar software and give it for free? The French space agency (CNES) is not a software company, its goal is to promote space technologies and encourage the development of new applications. CNES makes satellites and wants to make sure the images are used One goal is to encourage research: it is critical for researchers to know what is in the box FOSS4G 2009 www.orfeo-toolbox.org
  7. 7. Introduction Applications and librairy Roadmap Extra What When Why How How? How to reach this goal? Using the best work of others: do not reinvent the wheel FOSS4G 2009 www.orfeo-toolbox.org
  8. 8. Introduction Applications and librairy Roadmap Extra What When Why How How? How to reach this goal? Using the best work of others: do not reinvent the wheel Many open-source libraries of good quality ITK: software architecture (streaming, multithreading), many image processing algorithms Gdal/Ogr: reading data format (geotiff, raw, png, jpeg, shapefile, . . . ) Ossim: sensor models (Spot, RPC, SAR, . . . ) and map projections 6S: radiometric corrections and many other: libLAS (lidar data), Edison (Mean Shift clustering), libSiftFast (SIFT), Boost (graph), libSVM (Support Vector Machines), Mapnik (vector data representation) ⇒ all behind a common interface FOSS4G 2009 www.orfeo-toolbox.org
  9. 9. Introduction Applications and librairy Roadmap Extra Components Architecture But Outline 1 Introduction What is it? A bit of history Why doing that? How? 2 Applications and librairy Components Architecture But steep learning 3 What’s coming next? Monteverdi GIS integration Bindings GPU and clusters FOSS4G 2009 www.orfeo-toolbox.org
  10. 10. Introduction Applications and librairy Roadmap Extra Components Architecture But Application Currently Image viewer Image Segmentation Image Classification (by SVM) Land Cover Feature Extraction Road Extraction Orthorectification (with Pan Sharpening) Fine registration Image to database registration Object counting Urban area detection ⇒ major changes coming FOSS4G 2009 www.orfeo-toolbox.org
  11. 11. Introduction Applications and librairy Roadmap Extra Components Architecture But Components available Currently Most satellite image formats Geometric corrections Radiometric corrections Change detection Feature extraction Classification Huge documentation available Software Guide (+600 pages pdf), also the online version Doxygen: documentation for developers FOSS4G 2009 www.orfeo-toolbox.org
  12. 12. Introduction Applications and librairy Roadmap Extra Components Architecture But A powerful architecture Modular Easy to combine different blocks to do new processing Scalable Streaming (processing huge images on the flow) transparent for the user of the library Multithreading (using multicore CPUs) FOSS4G 2009 www.orfeo-toolbox.org
  13. 13. Introduction Applications and librairy Roadmap Extra Components Architecture But But a steep learning curve for the programmer Advanced programming concepts Template metaprogramming (generic programming) Design patterns (Factory, Functors, Smart Pointers, ...) FOSS4G 2009 www.orfeo-toolbox.org
  14. 14. Introduction Applications and librairy Roadmap Extra Components Architecture But But a steep learning curve for the programmer Advanced programming concepts Template metaprogramming (generic programming) Design patterns (Factory, Functors, Smart Pointers, ...) FOSS4G 2009 www.orfeo-toolbox.org
  15. 15. Introduction Applications and librairy Roadmap Extra Components Architecture But Open source community Ask questions: easier when you’re not alone Much easier if you have somebody around to help! Strong community around the OTB user mailing list: otb-users@googlegroups.com Replies usually come fast FOSS4G 2009 www.orfeo-toolbox.org
  16. 16. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters Outline 1 Introduction What is it? A bit of history Why doing that? How? 2 Applications and librairy Components Architecture But steep learning 3 What’s coming next? Monteverdi GIS integration Bindings GPU and clusters FOSS4G 2009 www.orfeo-toolbox.org
  17. 17. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters Monteverdi Capacity building Strong demand to provide tools for capacity building Decision to start an integrated application based on OTB Developpement started last month (September 2009) See demo later FOSS4G 2009 www.orfeo-toolbox.org
  18. 18. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters GIS integration PostGIS Work in progress to integrate the connection to PostGIS database (IO) Querying: use the geographic capabilities in feature extraction algorithms (a building has a shadow in the north west for example) FOSS4G 2009 www.orfeo-toolbox.org
  19. 19. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters GIS integration Quantum GIS Quantum GIS is a very user-friendly open source GIS application Work going on to access the OTB capabilities within Quantum GIS (plugins) FOSS4G 2009 www.orfeo-toolbox.org
  20. 20. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters GIS integration Mapping Stronger integration with mapping and data representation Integration of Mapnik, Open Street Map data FOSS4G 2009 www.orfeo-toolbox.org
  21. 21. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters Bindings: access through other languages Not everybody uses C++! Bindings provide an access to the library through other languages Python: mostly working but not fully tested Java: some work is still needed to be able to use OTB from java but most of the work is already done IDL/Envi: cooperation with ITT VIS to provide a method to access OTB through idl/envi (working but no automatic generation) Matlab: recent user contribution (R. Bellens from TU Delft) Other languages supported by Cable Swig might be possible (Tcl, Ruby?) FOSS4G 2009 www.orfeo-toolbox.org
  22. 22. Introduction Applications and librairy Roadmap Extra Application GIS integration Bindings GPU and clusters GPU and clusters Now Can automatically use several cores on the same CPU (shared memory) This is transparent for the user thanks to the ITK architecture GPU and clusters Some talks are going on between ITK and OTB to find the best solution: general, easy to use... Cuda is too dependent on the hardware but OpenCL is leading an effort to get a common architecture (Apple, AMD, Intel, Nvidia) Probably some novelties in the coming months FOSS4G 2009 www.orfeo-toolbox.org
  23. 23. Introduction Applications and librairy Roadmap Extra Questions? FOSS4G 2009 www.orfeo-toolbox.org
  24. 24. Introduction Applications and librairy Roadmap Extra A bit of code #include "otbImage.h" #include "otbImageFileReader.h" #include "otbImageFileWriter.h" int main( int argc, char * argv[] ) { typedef otb::Image<unsigned char, 2> ImageType; typedef otb::ImageFileReader<ImageType> ReaderType; ReaderType::Pointer reader = ReaderType::New(); typedef otb::ImageFileWriter<ImageType> WriterType; WriterType::Pointer writer = WriterType::New(); reader->SetFileName(argv[1]); writer->SetFileName(argv[2]); writer->SetInput(reader->GetOutput()); writer->Update(); return EXIT_SUCCESS; } FOSS4G 2009 www.orfeo-toolbox.org
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×