IVML about | r&d | publications | courses | people | links

Konstantinos Rapantzikos
   
Konstantinos Rapantzikos  

Contact Details
Personal Data
Studies / Dissertations
Research Experience
Teaching
Research Interests
Conference/Workshop Organization
Memberships
Languages
Journals
Conferences

 
Contact Details
E-mail rap@image.ntua.gr
Tel +30 210 772 4351
Fax +30 210 772 2492

top
Personal Data
Place / Date of birth March 12, 1977 / Athens

top
Studies / Dissertations
2002-2008

"Visual saliency models for the analysis of static and moving images"

PhD in Electrical and Computer Engineering, Image Video and Multimedia Systems Laboratory [IVML], National Technical University of Athens

 

2002

"Dense Estimation of Optical Flow in the Compressed Domain Using Robust Techniques"

M.Sc. in Electronics and Computer Engineering, Department of Electronics and Computer Engineering, Technical University of Crete

 

2000

"Detection of Age - related Macular Degeneration (AMD) in Human Eye's Retina Using Image Processing and Analysis Methods"

Degree in Electronics and Computer Engineering, Department of Electronics and Computer Engineering, Technical University of Crete


top
Teaching
2010-2011

University of Peloponnese Faculty of Science and Technology, Department of Telecommunications Science and Technology Visiting Lecturer (GPD 407/80) : "Image processing"

 

2002 - 2008 National Technical University of Athens,
Teaching assistant: "Digital Image Processing and Video Analysis"

 

2000-2001 Technical University of Crete,
Teaching assistant in undergraduate courses:
  Digital Image Processing [2001, 2000]
  Digital Signal Processing [2001, 2000]

top
Research Experience
2002-current
National Technical University of Athens
Researcher with the Image, Video and Multimedia Systems Laboratory
2006-2009
FP6-26978 / IP: X-Media, Knowledge Sharing and Reuse Across Media
2004-2007
FP6-507752 / NoE: MUSCLE, Multimedia Understanding through Semantics, Computation and Learning
2006-2009
FP6-507752 / NoE: FP6-027685 / IP: MESH, Multimedia Semantic Syndication for Enhanced News Services
2003-2005
EPAN-DSBEPRO-81 GLAYKWPIS, Multibiometric fusion techniques

 

2002-2004
 
   
1995-2002
Technical University of Crete
 
Research Assistant of "Digital Image and Signal Processing LAboratorY (DISPLAY)"
1999-2001
Technical University of Crete
 
Undergraduate and Graduate Research Assistant of the European Project HIPER.
 
Research on High Dynamic Range Imaging & Processing using a CMOS camera.
 
Know-how on the newly developed TriMedia processor and the Rhapsody image processing library during the visit at Philips-Eindhoven (Holland).
1998
Technical University of Crete
 
Undergraduate Scientific Assistant of the European Project MEDEA. Research work in the area of signal processing in the wavelet domain.
1997-1998
Naval Hospital of Hellenic Navy in Athens
 
Know-how on "PEDAR" system towards the establishment of the "Gait Analysis Laboratory"

top
Conference/Workshop Orginization
  • Organizer, special session on "Visual attention Algorithms and Architectures for Perceptual Understanding and Video Coding", International Conference on Artificial Neural Networks (ICANN'06), Athens, Sep 10-14, 2006

top
Research Interests
  • Computational modeling of Human Visual Attention
  • Feature detection in images and video sequences
  • Detection and recognition of actions in video sequences
  • Optical Flow Estimation in Compressed & Uncompressed Domain
  • Biomedical imaging
  • Hyperspectral Imaging
  • Medical Imaging
top
Memberships
2000- present Greek Technical Chamber [TEE]

top
Languages

Greek (native speaker)
English
German

top
Journals • 2015

1.   C. Varytimidis, K. Rapantzikos , Y. Avrithis and S. Kollias
save -shapes for local feature detection
Pattern Recognition
 
2.   C. Varytimidis, K. Rapantzikos , Y. Avrithis, S. Kollias
save Dithering-based Sampling and Weighted -shapes for Local Feature Detection
IPSJ Transactions on Computer Vision and Applications
 
Journals • 2013

3.   G. Evangelopoulos, A. Zlatintsi, A. Potamianos, P. Maragos, K. Rapantzikos, G. Skoumas, Y. Avrithis
save Multimodal Saliency and Fusion for Movie Summarization based on Aural, Visual, and Textual Attention
IEEE Transactions on Multimedia, 2013.
 
Journals • 2012

4.   I. Kollia, Y. Kalantidis, K. Rapantzikos, A. Stafylopatis
save Improving Semantic Search in Digital Libraries Using Multimedia Analysis
Journal of Multimedia, vol. 7, no 2, pp. 193-204, 2012.
 
Journals • 2011

5.   K. Rapantzikos, Y. Avrithis and S. Kollias
save Spatiotemporal features for action recognition and salient event detection
Cognitive Computation, special issue on Saliency, attention, visual search and picture scanning, vol. 3, no. 1, pp. 167-184, 2011
 
Journals • 2009

6.   K. Rapantzikos, N. Tsapatsoulis, Y. Avrithis, S. Kollias
save Spatiotemporal Saliency for Video Classification
Signal Processing: Image Communication, vol. 24, no. 7, pp. 557-571, Aug 2009.
 
Journals • 2007

7.   K. Rapantzikos, N. Tsapatsoulis, Y. Avrithis and S. Kollias
save A Bottom-Up Spatiotemporal Visual Attention Model for Video Analysis
IET Image Processing, vol. 1, no. 2, pp. 237- 248, Jun 2007
 
8.   N. Tsapatsoulis, K. Rapantzikos, C. Pattichis
save An Embedded Saliency Map Estimator Scheme: Application to Video Encoding
International Journal of Neural Systems, vol. 17, No. 4, pp. 1-16, Aug 2007
 
Journals • 2005

9.   K. Rapantzikos, N. Tsapatsoulis
A committee machine scheme for feature map fusion under uncertainty: the face detection case
IJISTA, special Issue on "Intelligent Image and Video Processing and Applications: The Role of Uncertainty", vol. 1, no. 3, pp. 346-358, 2006.
 
Journals • 2004

10.   G. Tsechpenakis, K. Rapantzikos, N. Tsapatsoulis and S. Kollias
save A Snake Model for Object Tracking in Natural Sequences
Elsevier, Signal Processing: Image Communication, Volume 19, Issue 3, March 2004, Pages 219-238
 
11.   G. Tsechpenakis, K. Rapantzikos, N. Tsapatsoulis, S. Kollias
save Rule-driven Object Tracking in Clutter and Partial Occlusion with Model-based Snakes
EURASIP Journal on Applied Signal Processing, vol. 2004, no. 6, pp. 841-860, Jun 2004
 
Journals • 2003

12.   K. Rapantzikos, M. Zervakis and K. Balas
save Detection and segmentation of drusen deposits on human retina: potential in the diagnosis of age-related macular degeneration
Medical Image Analysis, vol. 7, no. 1, pp. 95-108, Mar 2003
 
Books • 2011

1.   C. Peters, G. Castellano, M. Rehm, E. André, A. Raouzaiou, K. Rapantzikos, K. Karpouzis, G. Volpe, A. Camurri, A. Vasalou
save Fundamentals of Agent Perception and Attention Modelling
Emotion-Oriented Systems, Cognitive Technologies, Springer-Verlag, Part 4, 293-319, 2011
 
2.   K. Rapantzikos, Y. Avrithis and S. Kolias
save Vision, Attention Control, and Goals Creation System
Perception-Action Cycle, Springer Series in Cognitive and Neural Systems, Part 2, pp. 363-386,2011
 
Books • 2008

3.   G. Evangelopoulos, K. Rapantzikos, P. Maragos, Y. Avrithis, A. Potamianos
save Audiovisual Attention Modeling and Salient Event Detection
in Multimodal Processing and Interaction: Audio, Video, Text, edited by P. Maragos, A. Potamianos and P. Gros, Springer-Verlag.
 
Books • 2005

4.   K. Rapantzikos, M. Zervakis, K. Balas
Automatic Detection and Segmentation of Drusen in Retina Images for Risk Assessment on Macular Degeneration, vol.
C.T. Leondes (ed.), World Scientific Publ., N.J., USA
 
Conferences • 2014

1.   C. Varytimidis, K. Rapantzikos, Y. Avrithis and S. Kollias
Improving local features by dithering-based image sampling
Asian Conference on Computer Vision, 2014.
 
Conferences • 2013

2.   C. Varytimidis, K.Rapantzikos, S. Kollias
save WaSH-ing visual repositories: searching Europeana using local features
International conference on digital signal processing (DSP'13)
 
Conferences • 2012

3.   Christos Varytimidis, Konstantinos Rapantzikos and Yannis Avrithis
save WaSH: Weighted a-Shapes for Local Feature Detection
European Conference on Computer Vision, 2012.
 
4.   I. Kollia, K. Rapantzikos, G. Stamou, A. Stafylopatis
Semantic Query Answering in Digital Libraries
SETN 2012, Lamia, May 28-31, 2012.
 
Conferences • 2011

5.   Y. Avrithis and K. Rapantzikos
save The Medial Feature Detector: Stable Regions from Image Boundaries
In Proceedings of International Conference on Computer Vision (ICCV 2011), Barcelona, Spain, November 2011
 
Conferences • 2010

6.   K. Rapantzikos, Y. Avrithis, S. Kollias
save Detecting Regions from Single Scale Edges.
In Proceedings of International Workshop on Sign, Gesture and Activity (SGA'10), European Conference on Computer Vision (ECCV 2010)
 
Conferences • 2009

7.   G. Evangelopoulos, A. Zlatintsi, G. Skoumas, K. Rapantzikos, A. Potamianos, P. Maragos, Y. Avrithis
save Video event detection and summarization using audio, visual and text saliency
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp.3553-3556, 2009.
 
8.   K. Rapantzikos, Y. Avrithis, S. Kollias
save Dense saliency-based spatiotemporal feature points for action recognition
Conference on Computer Vision and Pattern Recognition (CVPR), 2009
 
9.   S. Nikolopoulos, C. Lakka, I. Kompatsiaris, C. Varytimidis, K. Rapantzikos, Y. Avrithis
save A cross media approach for compound document analysis
7th International Workshop on Content-Based Multimedia Indexing (CBMI 2009), Chania, Greece, June 2009.
 
Conferences • 2008

10.   G. Evangelopoulos, K. Rapantzikos, A. Potamianos, P. Maragos, A. Zlatintsi, Y. Avrithis
save Movie Summarization Based On Audio-Visual Saliency Detection
Proc. Intl Conference on Image Processing (ICIP-2008), San Diego, California, Oct. 2008.
 
11.   P. Kapsalas, K. Rapantzikos, A. Sofou, Y. Avrithis
save Regions Of Interest for Accurate Object Detection
CBMI'08, pp. 147-154, 2008
 
Conferences • 2007

12.   K. Rapantzikos, G. Evangelopoulos, P. Maragos and Y. Avrithis
save An Audio-Visual Saliency Model for Movie Summarization
Proc. IEEE Int'l Workshop on Multimedia Signal Processing (MMSP-2007), Chania, Greece, Oct. 2007
 
13.   K. Rapantzikos, Y. Avrithis, S. Kollias
save SALIENShrink: SALIENCY-BASED IMAGE DENOISING
ICIP'07, vol. 3, pp.333- 336, San Antonio, Sep 2007.
 
14.   K. Rapantzikos, Y.Avrithis, S. Kollias
save Spatiotemporal saliency for event detection and representation in the 3D Wavelet Domain: Potential in human action recognition
Proc. ACM International Conference on Image and Video Retrieval (CIVR), pp. 294 - 301 , Jul 2007
 
15.   N. Tsapatsoulis, C. Pattichis, K. Rapantzikos
save Biologically inspired region of interest selection for low bit-rate video coding
ICIP'07, vol. 1, pp. 305-308, San Antonio, Sep 2007.
 
Conferences • 2006

16.   N. Tsapatsoulis, K. Rapantzikos
save Wavelet Based Estimation of Saliency Maps in Visual Attention Algorithms
Proc. International Conference on Artificial Neural Networks (ICANN'06), Athens, Greece, 2006
 
17.   N. Tsapatsoulis, K. Rapantzikos and Y. Avrithis
save Priority Coding for Video-telephony Applications based on Visual Attention
2nd International Mobile Multimedia Communications Conference (MobiMedia 2006), Alghero, Italy, September 18-20, 2006
 
Conferences • 2005

18.   K. Rapantzikos, C. Balas
save Hyperspectral imaging: Potential in non-destructive analysis of palimpsests
Proc. of the IEEE International Conference on Image Processing (ICIP), Genova, Italy, Sep 2005.
 
19.   K. Rapantzikos. M. Zervakis
save Robust optical flow estimation in MPEG sequences
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Mar 2005
 
20.   K. Rapantzikos, N. Tsapatsoulis
save Enhancing the robustness of skin-based face detection schemes through a visual attention architecture
Proceedings of the IEEE International Conference on Image Processing (ICIP), Genova, Italy, Sep 2005
 
21.   K. Rapantzikos, Y. Avrithis
save An enhanced spatiotemporal visual attention model for sports video analysis
Intenrational Workshop on content-based Multimedia indexing (CBMI), Riga, Latvia, Jun 2005
 
22.   K. Rapantzikos, Y. Avrithis, S. Kollias
save Handling Uncertainty in Video Analysis With Spatiotemporal Visual Attention
Proc. of IEEE International Conference on Fuzzy Systems (FUZZ-IEEE ’05), Reno, Nevada, May 22-25, 2005
 
23.   K. Rapantzikos, Y. Avrithis, S. Kollias
save On the use of spatiotemporal visual attention for video classification
Proc. of Proc. of Int. Workshop on Very Low Bitrate Video Coding (VLBV '01), Sardinia, Italy, September 15-16, 2005.
 
Conferences • 2004

24.   K. Rapantzikos, N. Tsapatsoulis, and Y. Avrithis
save Spatiotemporal Visual Attention Architecture for Video Analysis
Proc. of IEEE International Workshop On Multimedia Signal Processing (MMSP 2004)
 
Conferences • 2003

25.   G. Tsechpenakis, K. Rapantzikos, N. Tsapatsoulis and S. Kollias
save Object Tracking in Clutter and Partial Occlusion through Rule-driven Utilization of Snakes
IEEE International Conference on Multimedia & Expo (ICME), Baltimore, USA
 
26.   K. Rapantzikos N. Tsapatsoulis
save On the Implementation of Visual Attention Architectures
Tales of the Disappearing Computer, Santorini, June 2003
 
27.   T. Balomenos, K. Rapantzikos and N. Tsapatsoulis
save On the use of ECG waveforms for Health Status Estimation
Tales of the Disappearing Computer
 
Conferences • 2001

28.   K. Rapantzikos, M. Zervakis
save A novel segmentation algorithm for the detection of abnormalities in human eyes retina
Proceedings of NNESMED, Santorini, Greece, August 2001
 
29.   K. Rapantzikos, M. Zervakis
save Nonlinear enhancement and segmentation Algorithm for the Detection of Age-related Macular Degeneration (AMD) in Human Eye’s Retina
Proceedings of ICIP 2001, Thessaloniki, Greece, October 2001
 
Diploma Thesis • 2002

1.   K. Rapantzikos
save Dense Estimation of Optical Flow in the Compressed Domain Using Robust Techniques, Sep 2002
MSc Thesis
 
Diploma Thesis • 2000

2.   K. Rapantzikos
save Detection of Age - related Macular Degeneration (AMD) in Human Eye's Retina Using Image Processing and Analysis Methods, Apr 2000
Diploma Thesis
 
 top 
Copyright Notice
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

 
 
© 01 The Image, Video and Multimedia Systems Laboratory - v1.05