Peter Vajda

Biography

Péter Vajda was born in Kaposvár, Hungary, on Oct. 12th, 1982. He received his M.Sc. in Computer Science from the Vrije Universiteit, Amsterdam, Netherlands, in July 2006 and in Program Designer Mathematician from Eötvös Loránd University, Budapest, Hungary, in July 2007. He performed his diploma work on selection mechanisms in evolution computing and on using prediction algorithms in human-computer interaction.

Since September 2007 he is research assistant in Professor Ebrahimi’s group in Ecole Polytechnique Fédéral de Lausanne (EPFL), Lausanne, Switzerland. He is currently working in multimedia security: object replica detection. He is involved in several European projects such as, Visnet II Network of Excellence, K-Space and PetaMedia. His research interests include mobile visual search, multimedia content analysis in still image and video, machine learning and pattern recognition and 3D object detection. He is also interested in artificial intelligence and graph theory. He is a student member of IEEE.

Mission

Research activities are the following:

  • Object replica detection based on local features and graph matching.
  • Detection of object that appear within video sequences.
  • Specific object detection, such as flowers, shoes, clothes, etc.
  • 3D object recognition.
  • Mobile media search.
  • Social network.

Main Publications

I. Ivanov; P. Vajda; P. Korshunov; T. Ebrahimi : Comparative Study of Trust Modeling For Automatic Landmark Tagging; IEEE Transactions on Information Forensics and Security. 2013. DOI : 10.1109/TIFS.2013.2242889.
I. Ivanov; P. Vajda; J. S. Lee; P. Korshunov; T. Ebrahimi : Geotag Propagation with User Trust Modeling; Social Media Retrieval; London: Springer-Verlag, 2013. p. 283-304.
I. Ivanov; P. Vajda; J. S. Lee; T. Ebrahimi : In Tags We Trust: Trust modeling in social tagging of multimedia content; IEEE Signal Processing Magazine, Special Issue on Signal and Information Processing for Social Learning and Networking. 2012. DOI : 10.1109/MSP.2011.942345.
I. Ivanov; P. Vajda; J.-S. Lee; L. Goldmann; T. Ebrahimi : Geotag Propagation in Social Networks Based on User Trust Model; Multimedia Tools and Applications (Springer), Special Issue on Social Mining and Search. 2012. DOI : 10.1007/s11042-010-0570-7.
P. Vajda; I. Ivanov; L. Goldmann; T. Ebrahimi : Omnidirectional Object Duplicate Detection. 2011. IEEE Digital Signal Processing Workshop/IEEE Signal Processing Education Workshop (DSP/SPE), Sedona, AZ, Jan 04-07, 2011. p. 332-337.
P. Vajda; I. Ivanov; J. S. Lee; T. Ebrahimi : Epitomize Your Photos; International Journal of Computer Games Technology. 2011. DOI : 10.1155/2011/706893.
P. Vajda / T. Ebrahimi (Dir.) : Object Duplicate Detection. Lausanne, EPFL, 2011. DOI : 10.5075/epfl-thesis-5166.
P. Vajda; I. Ivanov; L. Goldmann; T. Ebrahimi : Let Epitome summarize your photo collection!. 2011. IEEE International Conference on Multimedia and Expo (ICME 2011), Barcelona, Spain, July 11-15, 2011.
P. Vajda; I. Ivanov; L. Goldmann; T. Ebrahimi : Social game Epitome versus automatic visual analysis. 2011. IEEE International Conference on Multimedia and Expo, Barcelona, Spain, July 11-15, 2011. p. 1-6. DOI : 10.1109/ICME.2011.6011927.
P. Vajda; I. Ivanov; L. Goldmann; T. Ebrahimi : Omnidirectional object duplicate detection. 2011. 14th Digital Signal Processing Workshop, Sedona, Arizona, USA, January 4-7, 2011.
P. Vajda; I. Ivanov; L. Goldmann; J. S. Lee; T. Ebrahimi : On optimal solutions for mobile image retrieval applications. 2010.
P. Vajda; I. Ivanov; L. Goldmann; T. Ebrahimi : Social Game Epitome versus Automatic Visual Analysis. 2010. ACM international conference on Multimedia, Firenze, Italy, October 25-20, 2010.
I. Ivanov; P. Vajda; J.-S. Lee; T. Ebrahimi : Epitome - A Social Game for Photo Album Summarization. 2010. ACM SIGMM International Conference on Multimedia (ACM MM 2010), the First ACM International Workshop on Connected Multimedia (ACM CMM 2010), Florence, Italy, October 25-29, 2010. p. 33-38.
P. Vajda; I. Ivanov; J.-S. Lee; L. Goldmann; T. Ebrahimi : Propagation of geotags based on object duplicate detection. 2010. Applications of Digital Image Processing XXXIII, San Diego, California, USA, August 1-5, 2010. DOI : 10.1117/12.863484.
P. Vajda; I. Ivanov; L. Goldmann; J.-S. Lee; T. Ebrahimi : Robust Duplicate Detection of 2D and 3D Objects; International Journal of Multimedia Data Engineering and Management. 2010.
P. Vajda; I. Ivanov; L. Goldmann; J.-S. Lee; T. Ebrahimi : 3D Object Duplicate Detection for Video Retrieval. 2010. 11th International Workshop on Image Analysis for Multimedia Interactive Services, Desenzano del Garda, Italy, April 12-14, 2010.
I. Ivanov; P. Vajda; L. Goldmann; J.-S. Lee; T. Ebrahimi : Object-based Tag Propagation for Semi-automatic Annotation of Images. 2010. 11th ACM SIGMM International Conference on Multimedia Information Retrieval (MIR 2010), Philadelphia, Pennsylvania, USA, March 29-31, 2010. p. 497-506. DOI : 10.1145/1743384.1743471.
P. Vajda; L. Goldmann; T. Ebrahimi : Analysis of the Limits of Graph-Based Object Duplicate Detection. 2009. The Fifth IEEE International Workshop on Multimedia Information Processing and Retrieval, San Diego, December 14-16, 2009. p. 600-605.
P. Vajda; F. Dufaux; T. Ha M.; T. Ebrahimi : Graph-Based Approach for 3D Object Duplicate Detection. 2009. 10th International Workshop on Image Analysis for Multimedia Interactive Services, London, May 6-8, 2009.
L. Goldmann; T. Adamek; P. Vajda; M. Karaman; R. Mörzinger et al. : Towards Fully Automatic Image Segmentation Evaluation. 2008. Advanced Concepts for Intelligent Vision Systems (ACIVS), Juan-les-Pins, October 20-24, 2008. p. 566-577. DOI : 10.1007/978-3-540-88458-3.