GRADUATE SCHOOL OF INFORMATICS


Virtual Reality and Computer Vision Research Group

Principal Investigator:

Alptekin Temizel

Information:

The Virtual Reality and Computer Vision Group targets to conduct research on the cutting-edge topics of virtual reality and computer vision. Research projects vary from human perspective oriented evaluation of systems to development of new algorithm and methods for technical issues. The group frequently conducts joint research with world-wide institutions. Our research is directed mainly towards the following areas:

  • Image Processing
  • Pattern Recognition
  • Machine Vision
  • Video Surveillance
  • GPU Programming
  • Virtual Reality
  • Computer Graphics
  • Human-Computer Interaction

 Previous members of the group:

Dr. Yalın Baştanlar - Assist Prof. at Izmir Institute of Technology
Dr. Musa Ataş - Assist.Prof. at Siirt University
Dr. Ersin Karaman - Assist.Prof. at Atatürk University
Çiğdem Beyan - PhD candidate in the School of Informatics at the University of Edinburgh
Püren Güler - Ph.D. student at KTH, Stockholm, Sweden
Deniz Emeksiz - Software Specialist at Innova


 

Click here for the research projects of the group

 


 

Informatics Institute, METU has been named CUDA Teaching Center by NVIDIA in 2010 and CUDA Research Center in 2012. With these awards, METU becomes the first CUDA Teaching and the first CUDA Research Center in Turkey.

 

 


 Test Videos


 

 

Publications by Group Members:
 
2013

  • P.Guler, A.Temizel, T.Taskaya Temizel, “Real-Time Global Anomaly Detection for Crowd Video Surveillance Using SIFT”, 5th International Conference on Imaging for Crime Detection and Prevention (ICDP-2013), Dec. 2013.
  • B.B.Ogul, A.Temizel, “'Person Re-identification by Combining Features in a Learning Based Framework”, 5th International Conference on Imaging for Crime Detection and Prevention (ICDP-2013), Dec. 2013.
  • Gedik, E. ; Cinar, U. ; Karaman, E. ; Yardimci, Y. ; Halici, U. ; Pakin, K. ; Ergezer, H.Automatic water canal detection in multispectral satellite images, 21st Signal Processing and Communications Applications Conference (SIU), April 2013.
  • P.Guler, A.Temizel, T.Taskaya Temizel (2013), “An Unsupervised Method for Anomaly Detection from Crowd Videos”, IEEE 21st Signal Processing, Communication and Applications Conference, April 2013.
  • A.E. Gunduz, A.Temizel, T.Taskaya Temizel (2013), “Feature Detection and Tracking for Extraction of Crowd Dynamics”, IEEE 21st Signal Processing, Communication and Applications Conference, April 2013.
  • P.Guler, D.Emeksiz, M.Teke, A.Temizel, T.T.Temizel (2013), “Real-time Multi-Camera Video Analytics System on GPU”, Journal of Real-Time Image Processing, 10.1007/s11554-013-0337-2, March 2013.


2012

  • Atas, M., Yardımcı Y., & Temizel A. (2012). A New Approach to Aflatoxin Detection in Chili Pepper by Machine Vision. Computers and Electronics in Agriculture. 87(C), 129-141, Sept. 2012.
  • Emeksiz, D., & Temizel A. (2012). A continuous object tracking system with stationary and moving camera modes. SPIE Security+Defense, Electro-Optical and Infrared Systems: Technology and Applications, Sept. 2012.
  • Karaman, E.; Cinar, U.; Gedik, E.; Yardimci, Y.; Halici, U., Fourier based feature descriptors for railroad extraction from aerial images, IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Sept. 2012.
  • Cinar, U.; Karaman, E.; Gedik, E.; Halici, U.; Yardimci, Y., Junction extraction on road masks by pruned skeletons, SPIE Image and Signal Processing for Remote Sensing Conference Country, Sept. 2012.
  • Cinar, U.; Karaman, E.; Gedik, E.; Yardimci, Y., A new approach to automatic road extraction from satellite images using boosted classifiers, SPIE Image and Signal Processing for Remote Sensing Conference, Sept 2012.
  • Baştanlar, Y., Temizel A., Yardımcı Y., & Sturm P. (2012). Multi-view Structure-from-Motion for Hybrid Camera Scenarios. Image and Vision Computing. 30(8), 557–572, Aug. 2012.
  • Cinar, U.; Karaman, E.; Gedik, E. ; Yardimci, Y., Yüksek çözünürlüklü multispektral uydu görüntülerinde kuvvetlendirilmiş sınıflandırıcılar kullanılarak otomatik yol çıkarımı Savunma Teknolojileri Kongresi (Savtek) , June 2012.
  • Karaman, E. ; Cinar, U. ; Gedik, E. ; Yardimci, Y., Yüksek çözünürlüklü multispektral uydu görüntülerinde su alanlarının otomatik sınıflandırılması ile nehir ve su kanalı tespiti, MASFOR2012, June 2012.
  • Gedik, E.; Cinar, U.; Karaman, E.; Yardimci, Y.; Halici, U.; Pakin, K., A new robust method for bridge detection from high resolution electro-optic satellite images, Geographic Object-Based Image Analysis Conference(GEOBIA), May 2012.
  • Karaman, E.; Cinar, U.; Gedik, E.; Yardimci, Y.; Halici, U. A new algorithm for automatic road network extraction in multispectral satellite images, Geographic Object-Based Image Analysis Conference(GEOBIA), May 2012.
  • Gedik, E.; Cinar, U.; Karaman, E.; Yardimci, Y.; Halici, U.; Pakin, K., A rule based approach for detecting bridges from high resolution electro-optic satellite images,20th Signal Processing and Communications Applications Conference (SIU), April 2012.
  • Karaman, E.; Cinar, U.; Gedik, E.; Yardimci, Y.; Halici, U., Automatic road network extraction from multispectral satellite images, 20th Signal Processing and Communications Applications Conference (SIU), April 2012.
  • Teke, M., Erdem A., & Temizel A. (2012). Uzaktan Algılamada Yüksek Başarım. Ulusal Yüksek Başarımlı Hesaplama Konferansı (BASARIM).
  • Kepucka, E., Gurcan I., & Temizel A. (2012). Fast Omnidirectional Image Unwrapping on GPU. Euromicro International Conference on Parallel, Distributed and Network-Based Computing (WIP).
  • Cinar, U., & Temizel A. (2012). Parallel Memetic Algorithm Implementation on CUDA. GPU Technology Conference.
  • Firat, O., & Temizel A. (2012). Parallel Spectral Graph Partitioning on CUDA. GPU Technology Conference.
  • Tasel, F. S., & Temizel A. (2012). Parallelization of Hough Transform for Circles using CUDA. GPU Technology Conference.
  • Teke, M., & Temizel A. (2012). Remote Sensing on GPU: A Case Study. GPU Technology Conference.
  • Guler, P., Emeksiz D., & Temizel A. (2012). Speeding Up Camera Sabotage Detection on CUDA. GPU Technology Conference.
  • Beyan, Ç., & Temizel A. (2012). Adaptive Mean-Shift for Automated Multi Object Tracking. IET Computer Vision. 6(1), 1-12, Jan 2012.
  
2011

  • Temizel, A., Halıcı T., Loğoğlu B., Taşkaya Temizel T., Ömrüuzun F., & Karaman E. (2011).  Experiences on Image and Video Processing with CUDA and OpenCL. GPU Computing Gems 1, NVIDIA (Elsevier).
  • Teke, M., Vural F. M., Temizel A., & Yardımcı Y. (2011).  High Resolution Multispectral Satellite Image Matching Using SIFT and SURF. SPIE Journal of Applied Remote Sensing. 5,
  • Beyan, Ç., Yigit A., & Temizel A. (2011).  Fusion of Thermal and Visible Band Video for Abandoned Object Detection. Journal of Electronic Imaging. 20(3), 
  • Ataş, M., Yardımcı Y., & Temizel A. (2011).  Aflatoxin Contaminated Chili Pepper Detection by Hyperspectral Imaging and Machine Learning. SPIE Defense, Security, and Sensing (Sensing for Agriculture and Food Quality and Safety III).
  • [Anonymous] (2011).  Görünür ve Termal Bant Takibi Kullanılarak Terk Edilmiş Nesne Tespiti. IEEE 19th Signal Processing, Communication and Applications Conference.
  • Beyan, Ç., & Temizel A. (2011).  Görünür ve Termal Bant Takibi Kullanılarak Terk Edilmiş Nesne Tespiti. IEEE 19th Signal Processing, Communication and Applications Conference.
  • Beyan, Ç., & Temizel A. (2011).  Mean-shift Tracking for Surveillance Applications Using Thermal Infrared and Visible Band Data Fusion. SPIE Defense, Security, and Sensing (Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems, and Applications VIII).
  • Temizel, A., & Beyan Ç. (2011).  A Method for Individual Tracking of Multiple Objects. PCT Patent Filing.
  • Beyan, Ç., & Temizel A. (2011).  Ortalama Kayma ve Arka Plan Çıkarımı Kullanılarak Karma Çoklu Nesne Takipçisi. IEEE 19th Signal Processing, Communication and Applications Conference.

 
 2010

  • Atas, M., Yardımcı Y., & Temizel A. (2010).  Aflatoksinli Biberlerin Hiperspektral Görüntülerinin Sınıflandırılması İçin Yeni Yaklaşımlar. DEÜ Mühendislik Fakültesi Fen Bilimleri Dergisi. 12(3), 
  • Baştanlar, Y., Temizel A., Yardımcı Y., & Sturm P. (2010).  Effective Structure-from-Motion for Hybrid Camera System. International Conference on Pattern Recognition.
  • Teke, M., & Temizel A. (2010).  Multi-Spectral Satellite Image Registration Using Scale-Restricted SURF. International Conference on Pattern Recognition.
  • Baştanlar, Y., Temizel A., & Yardımcı Y. (2010).  3D Structure Extraction with Omnidirectional and Perspective Cameras. IEEE 18th Signal Processing, Communication and Applications Conference.
  • Teke, M., & Temizel A. (2010).  Çoklu Bant Uydu Görüntülerinin Ölçek Sınırlandırılmış SURF Kullanılarak Çakıştırılması. IEEE 18th Signal Processing, Communication and Applications Conference.
  • Yigit, A., & Temizel A. (2010).  Termal ve Görünür Bant İmgeleri Kullanılarak Terk Edilen Nesne Tespiti. IEEE 18th Signal Processing, Communication and Applications Conference.
  • Atas, M., Temizel A., & Yardımcı Y. (2010).  Using Hyperspectral Imaging and Artificial Neural Network for Classification of Aflatoxin Contaminated Chili Pepper. IEEE 18th Signal Processing, Communication and Applications Conference.
  • Baştanlar, Y., Temizel A., & Yardımcı Y. (2010).  Improved SIFT Matching for Image Pairs with a Scale Difference. IET Electronics Letters. 46(5). 

 
 2009

  • Vural, M. F., Yardımcı Y., & Temizel A. (2009).  Registration of Multispectral Satellite Images With Orientation-Restricted SIFT. IEEE International Geoscience & Remote Sensing Symposium (IGARSS).
  • Baştanlar, Y., Temizel A., & Yardımcı Y. (2009).  Automatic Point Matching and Robust Fundamental Matrix Estimation for Hybrid Camera Scenarios. IEEE 17th Signal Processing and Communications Applications Conference 2009.
  • Vural, M. F., Yardımcı Y., & Temizel A. (2009).  Multi Modal Satellite Image Registration Using SIFT. IEEE 17th Signal Processing and Communications Applications Conference, 2009..
  • Sağlam, A., & Temizel A. (2009).  Real-time Adaptive Camera Tamper Detection for Video Surveillance. IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS).
  • Çetin, Y., Yılmaz E., & Yardımcı Y. (2009).  Üç Boyutlu Sanal Çevre Görsel İpuçlarının Helikopter Simülatörleri Açısından İncelenmesi. 3.Ulusal Savunma Uygulamaları Modelleme ve Simülasyon Konferansı.

 
 2008

  • Baştanlar, Y., & Yardımcı Y. (2008).  Corner Validation based on Extracted Corner Properties. Computer Vision and Image Understanding,Elsevier. 112(3), 
  • Kalkan, H., & Yardımcı Y. (2008).  Extraction of Discriminative Features from Hyperspectral Data. IEEE International Conference on Data Mining Workshops.
  • Baştanlar, Y., Puig L., Sturm P., Guerrero Campo J., & Barreto J. (2008).  DLT-like Calibration of Central Catadioptric Cameras. Proc. of Workshop on Omnidirectional Vision (OmniVis 2008).
  • Çetin, A. E., Yardımcı Y., Kalkan H., İnce N. F., Onaran İ., Pearson T. C., et al. (2008).  Identificatıon of Damaged Wheat Kernels and Cracked-Shell Hazelnuts with Impact Acoustics Time-Frequency Patterns. Transactions of the Asabe, Amer. Soc. Agricultural & Biological Engineers. 51(4), 
  • Yardımcı, Y., Zabulis X., Çetin Y., Grammalidis N., Baştanlar Y., & Yılmaz E. (2008).  3D Scene Reconstruction Based on Robust Camera Motion Estimation and Space Sweeping for a Cultural Heritage Virtual Tour System. 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video.
  • Serçe, H., Baştanlar Y., Temizel A., & Yardımcı Y. (2008).  On Detection of Edges and Interest Points for Omnidirectional Images in Spherical Domain. IEEE 16th Signal Processing and Communications Applications Conference, 2008.

 
 2007

  • Aksay, A., Temizel A., & Çetin A. E. (2007).  Camera Tamper Detection Using Wavelet Analysis For Video Surveillance. 2007 IEEE Conference on Advanced Video and Signal Based Surveillance. 558-562.
  • İnce, N. F., Onaran İ., Tevfik A. H., Kalkan H., Pearson T. C., Çetin A. E., et al. (2007).  Wheat and Hazelnut Inspection with Impact Acoustics Time-Frequency Patterns. ASABE Annual International Meeting.
  • Temizel, A. (2007).  Image Resolution Enhancement using Wavelet Domain Hidden Markov Tree and Coefficient Sign Estimation. IEEE International Conference on Image Processing 2007. 5, 381-384.
  • Temizel, A., Akhan M. B., & Aksay A. (2007).  Archival of transformed and compressed data. US Patent.
  • Temizel, A. (2007).  Post Processing for Wavelet Domain HMT Image Resolution Enhancement. IEEE 15th Signal Processing and Communications Applications Conference 2007.
  • Baştanlar, Y. (2007).  User Behaviour in Web-Based Interactive Virtual Tours. 29th International Conference on Information Technology Interfaces (ITI 2007).

 
 2006

  • Onaran, İ., Pearson T. C., Yardımcı Y., & Çetin A. E. (2006).  Classification of Hazelnut Kernels by Using Impact Acoustic Time-Frequency Patterns. Transactions of the ASABE. 49(6), 1971-1976.
  • Akhan, M. B., Temizel A., & Aksay A. (2006).  Image enhancement and data loss recovery using wavelet transforms. US Patent.
  • Kalkan, H., & Yardımcı Y. (2006).  Classification Of Hazelnut Kernels By Impact Acoustics. IEEE International Workshop on Machine Learning For Signal Processing.
  • Temizel, A., & Vlachos T. (2006).  Wavelet Domain Image Resolution Enhancement. IEE Proceedings Vision, Image and Signal Processing. 153(1), 

 
 2005

  • Temizel, A., & Vlachos T. (2005).  Image Resolution Up-scaling in the Wavelet Domain Using Directional Cycle Spinning. SPIE Journal of Electronic Imaging. 14(4), 
  • Akhan, M. B., Ahıska Y., Akar G., Aksay B., & Temizel A. (2005).  Method and System For a Highly Efficient Low Bit Rate Codec. US Patent.
  • Temizel, A., & Vlachos T. (2005).  Wavelet Domain Image Resolution Enhancement Using Cycle Spinning and Edge Modelling. EUSIPCO ‘05.
  • Temizel, A., & Vlachos T. (2005).  Wavelet Domain Image Resolution Enhancement Using Cycle-Spinning. IEE Electronics Letters. 41(3), 

 
Group Members: 

Yasemin Yardımcı Çetin, Tuğba Taşkaya Temizel, Pelin Bayraktar, Ahmet Yiğit, Mustafa Teke, Okan Bilge Özdemir , Mustafa Yağcıoğlu, Berker Loğoglu, Emine Çimen, Ayşe Elvan Gündüz, Cihan Öngün, Figen Beken, Umut Çınar