University of Peradeniya : Computer Vision Research Group

We are a research group consisting of faculty, students and external collaborators trying to push the boundaries of computer vision theory and applications.


News

2020 Jun 28 Retinex based GAN Pipeline to Utilize Paired and Unpaired Datasets for Enhancing Low Light Images paper accepted for oral presentation at MERCON 2020.
2020 Generalizing Foreground Estimation Algorithms in Dynamic Background Conditions abstract accepted for oral presentation at IRC 2020.
2019 Dec 18 Non-contact infant sleep apnea detection paper accepted for oral presentation at ICIIS 2019.
2018 A framework for vision-based multiple target finding and action using multirotor UAVs paper accepted for ICUAS 2018.
2018 Real-time video enhancement using graphical processing units paper accepted for MERCON 2018.
2017 Separating tables from text and non-text objects in printed documents for digital reconstruction paper accepted for oral presentation at ICIAFS 2017.

Publications

  • Vu Tran, Gihan Jayatilaka, Ashwin Ashok, and Archan Misra. 2021. DeepLight: Robust & Unobtrusive Real-time Screen-Camera Communication for Real-World Displays. In Proceedings of the 20th International Conference on Information Processing in Sensor Networks (co-located with CPS-IoT Week 2021) (IPSN '21). Association for Computing Machinery, New York, NY, USA, 238–253.
    [DOI, PDF, PDF (preprint), Presentation, Code ]
  • Harshana Weligampola, Gihan Jayatilaka, Suren Sritharan, Parakrama Ekanayake, Roshan Ragel, Vijitha Herath, Roshan Godaliyadda.
    An optical physics inspired CNN approach for intrinsic image decomposition. In 2021 IEEE International Conference on Image Processing (ICIP). IEEE.
    [PDF (preprint)]
  • Weligampola, H., Jayatilaka, G., Sritharan, S., Godaliyadda, R., Ekanayaka, P., Ragel, R. and Herath, V., 2020, July. A Retinex based GAN Pipeline to Utilize Paired and Unpaired Datasets for Enhancing Low Light Images. In 2020 Moratuwa Engineering Research Conference (MERCon) (pp. 224-229). IEEE.
    [PDF, PDF (preprint), Presentation, Code ]
  • Hinas, A.; Ragel, R.; Roberts, J.; Gonzalez, F. A Framework for Multiple Ground Target Finding and Inspection Using a Multirotor UAS. Sensors 2020, 20, 272.
    [PDF, DOI]
  • Jayatilaka, G., Weligampola, H., Sritharan, S., Pathmanathan, P., Ragel, R. and Nawinne, I., 2019, December. Non-contact Infant Sleep Apnea Detection. In 2019 14th Conference on Industrial and Information Systems (ICIIS) (pp. 260-265). IEEE.
    [PDF, PDF (preprint) ]
  • JA. Hinas, R. Ragel, J. Roberts and F. Gonzalez, "A Framework for Vision-Based Multiple Target Finding and Action Using Multirotor UAVs," 2018 International Conference on Unmanned Aircraft Systems (ICUAS), Dallas, TX, 2018, pp. 1320-1327, doi: 10.1109/ICUAS.2018.8453313.
    [PDF]
  • R. Silva, A. Dasanayaka and R. Ragel, "Real-time Video Enhancement Using Graphical Processing Units," 2018 Moratuwa Engineering Research Conference (MERCon), Moratuwa, 2018, pp. 549-554, doi: 10.1109/MERCon.2018.8421937.
    [PDF]

  • People

    Faculty


    External Collaborators


    Graduate Research Students


    Undergraduate Research Students

    • Chamin Jayasooriya - Thesis on Action Recognition in Sports
      [web, email, researchgate]
    • Mohamed Irfan - Thesis on Ensuring Academic Integrity Of Online Examinations
      [web, email]
    • Isuru U. Sudasinghe - Adaptive people movement and action prediction using CCTV to control appliances
      [web, email]
    • U.L Risith Ravisara Perera - Adaptive people movement and action prediction using CCTV to control appliances
      [web, email]
    • Ruchika Alwis - Adaptive people movement and action prediction using CCTV to control appliances
      [web, email]

    Alumni

    Former Faculty
    Past Collaborators
    Former Students
    • Rosen Silva - GPU acceleration of video enhancement (Undergraduate 2017. Now at WSO2.)
    • Asela Dasanayaka - GPU acceleration of video enhancement (Undergraduate 2017. Now at Technische Universität München)


    Courses

    CO543 Image Processing

    Taught by: Dr. Kamalanath Samarakoon and Dr. Upul Jayasinghe
    Course Content: Introduction, Digital image fundamentals, Image enhancement in the spatial domain, Image enhancement in the frequency domain, Colour image processing, Image compression, Assignments.
    E15 (6th sem). Will be offered to E16 (Xth semester).

    Resources

    Our research group utilizes a cluster of GPU servers to do the computation. We also use a multitude of edge computing devices to build systems.



    Go to the Computer Vision Library to access more resources on Computer Vision.
    (Please note that this website is only accessible via Faculty of Engineering email accounts)


    Join us

    Click here to see the list of open project ideas for undergraduates to do.



    If you are a/an You should
    ce.pdn.ac.lk fourth year undergraduate hoping to work on a final year project Follow the procedure displayed on the moodle at right before the beginning of the 7th semester.
    ce.pdn.ac.lk third year undergraduate hoping to work on a final year project in computer vision. Talk to a faculty member of the research group and see how you can start building up an idea to work in the fourth year. You will work with him/her on developing a project idea and s/he will add it to the list of project topics to be officially selected from in the 7th semester.
    eng.pdn.ac.lk or sci.pdn.ac.lk/scs/ fourth year undergraduate hoping to work on a final year project Talk to a faculty member of our research group unofficially and discuss your interests and see if there is a topic you would like to work on. Find an thesis adviser from your department and see if s/he is willing to collaborate with our research group. Send a joint supervision request officially through your thesis adviser.
    eng.pdn.ac.lk, or sci.pdn.ac.lk/scs undergraduate hoping to work on a project that counts for a requirement on their degree program. Contact a faculty member of the research group and discuss your common interests to see if there is a suitable topic. Once you have a common interest, contact the faculty member officially through the specific course coordinator from your department.
    Any pdn.ac.lk undergraduate hoping to work on an extra curricular project Write to any member of the research group, meet and come up with a project plan.
    Any graduate (with a degree in a related field) hoping to pursue a PG Dip (with research), MPhil or PhD Look up CERPS website for the official information and contact a faculty member for supervision.
    A researcher in a university working on a computer vision/image processing/video processing application looking for a collaboration. Contact a faculty member. We have openings to incorporate your research ideas into student projects (if they match our requirements).

    Webmaster

    This website is maintained by Isuri Devindi [Department of Computer Engineering, Univeristy of Peradeniya]

    Last Update : 13-05-2021

    If you have any concerns about the content of this website, please email Prof. Roshan Ragel (instead of writing to the webmaster). This website is monitored by Web consultation unit, University of Peradeniya.