Nuno Gracias' Publications

 

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Journals

1.     Damage and Recovery Assessment of Vessel Grounding Injuries on Coral Reef Habitats by use of Georeferenced Landscape Video Mosaics,  D. Lirman, N. Gracias, B. Gintert, A. C. R. Gleason, G. Deangelo, M. Dick, E. Martinez, R. P. Reid, Limnology and Oceanography: Methods, 8, 88–97, 2010.

2.     Augmented state–extended Kalman filter combined framework for topology estimation in large-area underwater mapping, A. Elibol, N. Gracias and R. Garcia (2010). Journal of Field Robotics, 27: 656–674. doi: 10.1002/rob.20357, 2010

3.     Efficient Three-dimensional Scene Modeling and Mosaicing,  T. Nicosevici , N. Gracias, S. Negahdaripour and R. Garcia, Journal of Field Robotics, 16(10), 759-788, 2010.

4.     A noninvasive method for measuring the velocity of diffuse hydrothermal flow by tracking moving refractive index anomalies E. Mittelstaedt, A. Davaille, P. E. van Keken, N. Gracias, and J. Escartin (2010), Geochemistry, Geophysics, Geosystems Vol 11., Q10005, doi:10.1029/2010GC003227

5.     Globally-aligned photo mosaic of the Lucky Strike hydrothermal Vent Field (Mid-Atlantic Ridge, 37 18.5’N):  Release of georeferenced data and interactive viewer software,   J. Escartin, R. Garcia, O. Delaunoy, J. Ferrer, N. Gracias, A. Elibol, X. Cufi, L. Neumann, D. Fornari and S. Humphris, Geochemistry, Geophysics, Geosystems, Vol. 9, Q12009, 2008.

6.     Fast Image Blending using Watersheds and Graph Cuts,  Nuno Gracias, Shahriar Negahdaripour, Art Gleason and Mohammad Mahoor, Image and Vision Computing, Volume 27, Numbers 5, pp. 597-607(11), 2009. PDF file (2.6Mb)  (extended version of the BMVC2006 paper)

7.     Documenting Hurricane Impacts on Coral Reefs Using Two-Dimensional Video-Mosaic Technology,  A. Gleason, D. Lirman, D. Williams, N. Gracias, B. Gintert, H. Madjidi, R. P. Reid, G. Boynton, S. Negahdaripour, M. Miller, P. Kramer, Marine Ecology, Volume 28, Number 2, June 2007, pp. 254-258(5). PDF file (1.1Mb) 

8.     Development and Application of a Video-Mosaic Survey Technology to Document the Status of Coral Reef Communities,  Diego Lirman, Nuno Gracias, Brooke Gintert, Art Gleason, Pam Reid, Shahriar Negahdaripour and Phil Kramer, Environmental Monitoring and Assessment, Volume 125, Numbers 1-3, February 2007 , pp. 59-73(15) PDF file  (1.2 Mb)

9.     Mosaic Based Navigation for Autonomous Underwater Vehicles,  Nuno Gracias, Sjoerd van der Zwaan, Alexandre Bernardino, José Santos-Victor,  VisLab-TR 06/2003, IEEE Journal of Oceanic Engineering, October 2003. PDF file  (1.4 Mb)

10.            Trajectory Reconstruction With Uncertainty Estimation Using Mosaic Registration, Nuno Gracias, José Santos-Victor, VisLab-TR 04/2001, - Robotics and Autonomous Systems (Elsevier), 35(3-4), June 2001, PDF file (898 Kb)

11.            Underwater Video Mosaics as Visual Navigation Maps, Nuno Gracias, José Santos-Victor, VisLab-TR 07/2000 - Computer Vision and Image Understanding, vol. 79(1), pp. 66-91, July 2000 pdf file (920 Kb)

 

Conferences

1.     Damage Assessment of Vessel Grounding Injuries on Coral Reef Habitats Using Underwater Landscape Mosaics, A. Gleason, D. Lirman, N. Gracias, T. Moore, S. Griffin, M. Gonzalez, B. Gintert and R. P. Reid,   63rd Meeting of the Gulf and Caribbean Fisheries Institute (GCFI2010), San Juan, Puerto Rico, November 2010

2.     Match Selection in Batch Mosaicing using Mutual Information,   A. Elibol, N. Gracias and R. Garcia, Proc. of the 4th Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA2009), Povoa do Varzim, Portugal, June 2009. PDF file (0.3Mb)

3.     A motion compensated filtering approach to remove sunlight flicker in shallow water images,   N. Gracias, S. Negahdaripour, L. Neumann, R. Prados and R. Garcia, Proc. of the MTS/IEEE Oceans 2008 Conference, Quebec City, Canada, September 2008. PDF file (3.4Mb)

4.     A New Global Alignment Method for Feature Based Image Mosaicing,   A. Elibol,  R. Garcia,  O. Delaunoy and N. Gracias, Proc. of the 4th International Symposium on Visual Computing (ISVC08), Las Vegas, USA, December 2008. PDF file (1.6Mb) 

5.     Second-generation landscape mosaics of coral reefs,  B. Gintert, N. Gracias, D. Lirman, A. Gleason, P. Kramer, and R. P. Reid. Proceedings of the 11th International Coral Reef Symposium 2008 (ICRS08), Ft. Lauderdale, USA p. 577-581, July 2008

6.     Towards detecting changes in underwater image sequences,  Olivier Delaunoy, Nuno Gracias and Rafael Garcia, MTS/IEEE Oceans08 Conference, Kobe, Japan, April 2008. PDF file (1.5Mb) 

7.     Large-Area Photo-Mosaics Using Global Alignment and Navigation Data,  J. Ferrer, A. Elibol, O. Delaunoy, N. Gracias and R. Garcia MTS/IEEE Oceans07 Conference, Vancouver, Canada, October 2007. PDF file (1.6Mb) 

8.     Fast Image Blending using Watersheds and Graph Cuts,  Nuno Gracias, Shahriar Negahdaripour, Art Gleason and Mohammad Mahoor, British Machine Vision Conference 2006, Edinburgh, September 2006. PDF file (1.1Mb) 

9.     Underwater Mosaic Creation using Video sequences from Different Altitudes,  Nuno Gracias and Shahriar Negahdaripour  MTS/IEEE Oceans05 Conference, Washington, DC, September 2005. PDF file  (1.4 Mb)

10.            Linear Global Mosaics for Underwater Surveying,  Nuno Gracias, João Paulo Costeira and José Santos-Victor  VisLab-TR 02/2004, 4th IFAC/EURON Symposium on Autonomous Vehicles, IAV04, Lisbon, Portugal, July 2004. PDF file  (512 Kb)

11.            Results on Underwater Mosaic-based Navigation,  Nuno Gracias, Sjoerd van der Zwaan, Alexandre Bernardino,José Santos-Victor,  VisLab-TR 06/2003, IEEE OCEANS 2002, Biloxi, October 2002. PDF file  (1.2 Mb)

12.            Underwater Mosaicing and Trajectory Reconstruction using Global Alignement, Nuno Gracias, José Santos-Victor, VisLab-TR 12/2001, - IEEE OCEANS 2001, Honolulu, November 2001,PDF file (2.17 Mb)

13.            Using vision for underwater robotics: video mosaics and station keeping, José Santos-Victor, Nuno Gracias, Sjoerd van der Zwaan, VisLab-TR 10/2001, - 1st International Workshop on Underwater robotics for Sea Exploitation and Environmental Monitoring, Rio de Janeiro, Brasil, October 2001, PDF file (600 Kb)

14.            Trajectory Reconstruction Using Mosaic Registration, Nuno Gracias, José Santos-Victor, VisLab-TR 07/99, 7th International Symposium on Intelligent Robotic Systems - SIRS99, Coimbra, Portugal, July 1999 compressed ps file (1.9 Mb) 

15.            Automatic Mosaic Creation of the Ocean Floor, Nuno Gracias, José Santos-Victor VisLab-TR 05/98, IEEE OCEANS 98, Nice, France, October 1998 compressed ps file (0.9 Mb) 

16.            Robust Estimation of the Fundamental Matrix and Stereo Correspondences, Nuno Gracias, José Santos-Victor, VisLab-TR 05/97, 5th International Symposium on Intelligent Robotic Systems - SIRS97, Stockholm, Sweden, July 1997 compressed ps file (0.360 Mbytes)