Chair of Multimedia Telecommunications and Microelectronics


Robert Ratajczak

Robert Ratajczak


(born 1985) received M.Sc. degree from Poznan University of Technology in 2010. He is a Ph.D. student at the Chair of Multimedia Telecommunications and Microelectronics. The main areas of his professional activities are stereoscopic image processing, object detection and video compression algorithms.

Contact

Room: 138 (Polanka)
Phone: +48 61 665 3842
Mail: rratajczak@multimedia.edu.pl

Advisor hours

Thu 10:15 - 11:45

Awards

Research projects

Publications

International journals

  1. Marek Domański, Olgierd Stankiewicz, Krzysztof Wegner, Maciej Kurc, Jacek Konieczny, Jakub Siast, Jakub Stankowski, Robert Ratajczak, Tomasz Grajek,
    High Efficiency 3D Video Coding Using New Tools Based on View Synthesis,
    IEEE Transactions on Image Processing, Special Issue on 3D Video Representation, Compression, & Rendering, Vol. 22, No. 9, September 2013, pp. 3517-3527,
    Full textEndNoteCitationDOI

International conferences

  1. Krzysztof Wegner, Dominika Łosiewicz, Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Real-time virtual navigation provision by simple means,
    International Conference on Signals and Electronic Systems, ICSES 2018, Kraków, Poland, September 10-12 2018,
    EndNoteCitation
  2. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Krzysztof Klimaszewski, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Siast, Jakub Stankowski, Krzysztof Wegner,
    Demonstration of a simple free viewpoint television system,
    IEEE International Conference on Image Processing ICIP 2017, Bejing, China, 17-20 September 2017,
    Full textEndNoteCitation
  3. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Łukasz Kowalski, Maciej Kurc, Adam Łuczak, Dawid Mieloch, Robert Ratajczak, Jarosław Samelak, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Methods of High Efficiency Compression for Transmission of Spatial Representation of Motion Scenes,
    IEEE International Conference on Multimedia and Expo ICME 2015, Torino, Italy, June 29-July 3 2015,
    Full textEndNoteCitation
  4. Tomasz Grajek, Robert Ratajczak, Marek Domański, Krzysztof Wegner,
    Limitations of Vehicle Length Estimation Using Stereoscopic Video Analysis,
    20th International Conference on Systems, Signals and Image Processing, IWSSIP 2013, Bucharest, Romania, 7-9 July 2013, pp. 27-30, ISBN: 978-1-4799-0941-4,
    Full textEndNoteCitation
  5. Robert Ratajczak, Tomasz Grajek, Krzysztof Wegner, Krzysztof Klimaszewski, Maciej Kurc, Marek Domański,
    Vehicle Dimensions Estimation Scheme Using AAM on Stereoscopic Video,
    10th IEEE International Conference on Advanced Video and Signal-Based Surveillance, AVSS 2013, Workshop on Vehicle Retrieval in Surveillance (VRS) 2013, Kraków, Poland, 27-30 August 2013, pp. 478-482,
    Full textEndNoteCitation
  6. Marek Domański, Tomasz Grajek, Damian Karwowski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Coding of multiple video+depth using HEVC technology and reduced representations of side views and depth maps,
    29th Picture Coding Symposium, PCS 2012, Kraków, Poland, 7-9 May 2012, pp. 5-8,
    Full textEndNoteCitationDOI
  7. Robert Ratajczak, Marek Domański, Krzysztof Wegner,
    Vehicle Size Estimation from Stereoscopic Video,
    19th International Conference on Systems, Signals and Image Processing, IWSSIP 2012, Vienna, Austria, 11-13 April 2012, pp. 405-408, ISBN: 978-1-4577-2191-5 ,
    Full textEndNoteCitation
  8. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    New coding technology for 3D video with depth maps as proposed for standardization within MPEG,
    19th International Conference on Systems, Signals and Image Processing, IWSSIP 2012, Vienna, Austria, 11-13 April 2012, pp. 401-404, ISBN: 978-1-4577-2191-5 ,
    Full textEndNoteCitation
  9. Marek Domański, Jacek Konieczny, Maciej Kurc, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    3D video compression by coding of disoccluded regions,
    19th IEEE International Conference on Image Processing (ICIP 2012), Orlando, Florida, U.S.A., 30 September - 3 October 2012, pp. 1317-1320,
    Full textEndNoteCitationDOI

International conferences - standardization

  1. Krzysztof Wegner, Tomasz Grajek, Adam Grzelka, Mateusz Lorkiewicz, Robert Ratajczak, Olgierd Stankiewicz, Jakub Stankowski, Hubert Żabiński, Marek Domański,
    Depth Estimation Reference Software extension for lightfield images,
    ISO/IEC JTC1/SC29/WG11 MPEG2019, m46126, Marrakech, Morocco, 13-19 January 2019,
    Full textEndNoteCitation
  2. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Krzysztof Klimaszewski, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Siast, Jakub Stankowski, Krzysztof Wegner,
    Free-viewpoint television demonstration for sports events,
    ISO/IEC JTC1/SC29/WG11 MPEG2018, M41991, Gwangju, South Korea, 22-26 January 2018,
    Full textEndNoteCitation
  3. Marek Domański, Krzysztof Klimaszewski, Maciej Kurc, Robert Ratajczak, Olgierd Stankiewicz, Krzysztof Wegner,
    Super-multi-view light-field images from Poznan University of Technology,
    ISO/IEC JTC1/SC29/WG11 MPEG2015, M36566, Warsaw, Poland, 20-27 June 2015,
    Full textEndNoteCitation
  4. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Technical Desciption of Poznan University of Technology proposal for Call on 3D Video Coding Technology,
    ISO/IEC JTC1/SC29/WG11, MPEG 2011 / M22697, Geneva, Switzerland, 28 November-02 December 2011,
    Full textEndNoteCitation
  5. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Multiview HEVC – experimental results,
    Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, MPEG 2011 / M22147, Geneva, Switzerland, 28 November - 02 December 2011,
    Full textEndNoteCitation

National journals

  1. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Poznański kodek obrazów trójwymiarowych,
    Przegląd Telekomunikacyjny, No. 2-3, February/March 2013, pp. 81-83,
    EndNoteCitation

Patents & Applications

  1. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Adam Łuczak, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation using 3D models,
    Patent office: USPTO, Status: granted,
    Application number: US 14/690484, Filling date: 20.04.2015,
    Patent number: US 9430850, Date of Patent: 30.08.2016,
    EndNoteCitation
  2. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Maciej Kurc, Jakub Stankowski, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation,
    Patent office: USPTO, Status: granted,
    Application number: US 14/664983, Filling date: 23.03.2015,
    Patent number: US 9384417, Date of Patent: 5.07.2017,
    EndNoteCitation
  3. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Adam Łuczak, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation using 3D models,
    Patent office: EPO, Status: application,
    Application number: EP 15164287.3, Filling date: 20.04.2015,
    EndNoteCitation
  4. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Maciej Kurc, Jakub Stankowski, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation,
    Patent office: EPO, Status: granted,
    Application number: EP 15160202.06, Filling date: 23.03.2015,
    Publication number: EP 3073442, Publication date: 28.09.2016,
    Patent number: EP 3073442, Date of Patent: 01.03.2017,
    Validated in: PL, DE, FR, GB,
    EndNoteCitation
  5. Marek Domański, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Image coding method,
    Patent office: USPTO, Status: granted,
    Application number: US 13/680652, Filling date: 19.11.2012,
    Publication number: US 2013/0129235A1, Publication date: 23.05.2013,
    Patent number: US 8761527, Date of Patent: 24.06.2014,
    EndNoteCitation

2019

  1. Krzysztof Wegner, Tomasz Grajek, Adam Grzelka, Mateusz Lorkiewicz, Robert Ratajczak, Olgierd Stankiewicz, Jakub Stankowski, Hubert Żabiński, Marek Domański,
    Depth Estimation Reference Software extension for lightfield images,
    ISO/IEC JTC1/SC29/WG11 MPEG2019, m46126, Marrakech, Morocco, 13-19 January 2019,
    Full textEndNoteCitation

2018

  1. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Krzysztof Klimaszewski, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Siast, Jakub Stankowski, Krzysztof Wegner,
    Free-viewpoint television demonstration for sports events,
    ISO/IEC JTC1/SC29/WG11 MPEG2018, M41991, Gwangju, South Korea, 22-26 January 2018,
    Full textEndNoteCitation

  2. Krzysztof Wegner, Dominika Łosiewicz, Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Real-time virtual navigation provision by simple means,
    International Conference on Signals and Electronic Systems, ICSES 2018, Kraków, Poland, September 10-12 2018,
    EndNoteCitation

2017

  1. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Krzysztof Klimaszewski, Dawid Mieloch, Robert Ratajczak, Olgierd Stankiewicz, Jakub Siast, Jakub Stankowski, Krzysztof Wegner,
    Demonstration of a simple free viewpoint television system,
    IEEE International Conference on Image Processing ICIP 2017, Bejing, China, 17-20 September 2017,
    Full textEndNoteCitation

2015

  1. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Adam Łuczak, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation using 3D models,
    Patent office: USPTO, Status: granted,
    Application number: US 14/690484, Filling date: 20.04.2015,
    Patent number: US 9430850, Date of Patent: 30.08.2016,
    EndNoteCitation

  2. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Maciej Kurc, Jakub Stankowski, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation,
    Patent office: USPTO, Status: granted,
    Application number: US 14/664983, Filling date: 23.03.2015,
    Patent number: US 9384417, Date of Patent: 5.07.2017,
    EndNoteCitation

  3. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Adam Łuczak, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation using 3D models,
    Patent office: EPO, Status: application,
    Application number: EP 15164287.3, Filling date: 20.04.2015,
    EndNoteCitation

  4. Marek Domański, Tomasz Grajek, Krzysztof Klimaszewski, Maciej Kurc, Jakub Stankowski, Robert Ratajczak, Krzysztof Wegner,
    A system and method for object dimension estimation,
    Patent office: EPO, Status: granted,
    Application number: EP 15160202.06, Filling date: 23.03.2015,
    Publication number: EP 3073442, Publication date: 28.09.2016,
    Patent number: EP 3073442, Date of Patent: 01.03.2017,
    Validated in: PL, DE, FR, GB,
    EndNoteCitation

  5. Marek Domański, Adrian Dziembowski, Tomasz Grajek, Adam Grzelka, Łukasz Kowalski, Maciej Kurc, Adam Łuczak, Dawid Mieloch, Robert Ratajczak, Jarosław Samelak, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Methods of High Efficiency Compression for Transmission of Spatial Representation of Motion Scenes,
    IEEE International Conference on Multimedia and Expo ICME 2015, Torino, Italy, June 29-July 3 2015,
    Full textEndNoteCitation

  6. Marek Domański, Krzysztof Klimaszewski, Maciej Kurc, Robert Ratajczak, Olgierd Stankiewicz, Krzysztof Wegner,
    Super-multi-view light-field images from Poznan University of Technology,
    ISO/IEC JTC1/SC29/WG11 MPEG2015, M36566, Warsaw, Poland, 20-27 June 2015,
    Full textEndNoteCitation

2013

  1. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Poznański kodek obrazów trójwymiarowych,
    Przegląd Telekomunikacyjny, No. 2-3, February/March 2013, pp. 81-83,
    EndNoteCitation

  2. Tomasz Grajek, Robert Ratajczak, Marek Domański, Krzysztof Wegner,
    Limitations of Vehicle Length Estimation Using Stereoscopic Video Analysis,
    20th International Conference on Systems, Signals and Image Processing, IWSSIP 2013, Bucharest, Romania, 7-9 July 2013, pp. 27-30, ISBN: 978-1-4799-0941-4,
    Full textEndNoteCitation

  3. Marek Domański, Olgierd Stankiewicz, Krzysztof Wegner, Maciej Kurc, Jacek Konieczny, Jakub Siast, Jakub Stankowski, Robert Ratajczak, Tomasz Grajek,
    High Efficiency 3D Video Coding Using New Tools Based on View Synthesis,
    IEEE Transactions on Image Processing, Special Issue on 3D Video Representation, Compression, & Rendering, Vol. 22, No. 9, September 2013, pp. 3517-3527,
    Full textEndNoteCitationDOI

  4. Robert Ratajczak, Tomasz Grajek, Krzysztof Wegner, Krzysztof Klimaszewski, Maciej Kurc, Marek Domański,
    Vehicle Dimensions Estimation Scheme Using AAM on Stereoscopic Video,
    10th IEEE International Conference on Advanced Video and Signal-Based Surveillance, AVSS 2013, Workshop on Vehicle Retrieval in Surveillance (VRS) 2013, Kraków, Poland, 27-30 August 2013, pp. 478-482,
    Full textEndNoteCitation

2012

  1. Marek Domański, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Image coding method,
    Patent office: USPTO, Status: granted,
    Application number: US 13/680652, Filling date: 19.11.2012,
    Publication number: US 2013/0129235A1, Publication date: 23.05.2013,
    Patent number: US 8761527, Date of Patent: 24.06.2014,
    EndNoteCitation

  2. Marek Domański, Tomasz Grajek, Damian Karwowski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Coding of multiple video+depth using HEVC technology and reduced representations of side views and depth maps,
    29th Picture Coding Symposium, PCS 2012, Kraków, Poland, 7-9 May 2012, pp. 5-8,
    Full textEndNoteCitationDOI

  3. Robert Ratajczak, Marek Domański, Krzysztof Wegner,
    Vehicle Size Estimation from Stereoscopic Video,
    19th International Conference on Systems, Signals and Image Processing, IWSSIP 2012, Vienna, Austria, 11-13 April 2012, pp. 405-408, ISBN: 978-1-4577-2191-5 ,
    Full textEndNoteCitation

  4. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    New coding technology for 3D video with depth maps as proposed for standardization within MPEG,
    19th International Conference on Systems, Signals and Image Processing, IWSSIP 2012, Vienna, Austria, 11-13 April 2012, pp. 401-404, ISBN: 978-1-4577-2191-5 ,
    Full textEndNoteCitation

  5. Marek Domański, Jacek Konieczny, Maciej Kurc, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    3D video compression by coding of disoccluded regions,
    19th IEEE International Conference on Image Processing (ICIP 2012), Orlando, Florida, U.S.A., 30 September - 3 October 2012, pp. 1317-1320,
    Full textEndNoteCitationDOI

2011

  1. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Technical Desciption of Poznan University of Technology proposal for Call on 3D Video Coding Technology,
    ISO/IEC JTC1/SC29/WG11, MPEG 2011 / M22697, Geneva, Switzerland, 28 November-02 December 2011,
    Full textEndNoteCitation

  2. Marek Domański, Tomasz Grajek, Damian Karwowski, Krzysztof Klimaszewski, Jacek Konieczny, Maciej Kurc, Adam Łuczak, Robert Ratajczak, Jakub Siast, Olgierd Stankiewicz, Jakub Stankowski, Krzysztof Wegner,
    Multiview HEVC – experimental results,
    Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, MPEG 2011 / M22147, Geneva, Switzerland, 28 November - 02 December 2011,
    Full textEndNoteCitation