Chair of Multimedia Telecommunications and Microelectronics


Błażej Szydełko

Błażej Szydełko


Contact

Room: 107 (Polanka)
Phone: +48 61 665 3846
Mail: blazej.szydelko@put.poznan.pl

Duty hours

Wednesday 13:30-15:00

Fields of interest

Immersive video, camera calibration algorithms

Publications

International journals

  1. Dawid Mieloch, Adrian Dziembowski, Dominika Klóska, Błażej Szydełko, Jun Young Jeong, Gwangsoon Lee,
    A New Approach to Decoder-Side Depth Estimation in Immersive Video Transmission,
    IEEE Transactions on Broadcasting, Vol. 69, No. 4, 2023, pp. 951-965, ISSN: 1557-9611,
    Full textEndNoteCitationDOI

International conferences - standardization

  1. Jakub Stankowski, Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Jun Young Jeong, Gwangsoon Lee,
    A new approach to geometry features signaling,
    ISO/IEC JTC1/SC29/WG4 MPEG 147, M68843, July 2024,
    Full textEndNoteCitation
  2. Jakub Stankowski, Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Jun Young Jeong, Gwangsoon Lee,
    Signaling of extended geometry assistance,
    ISO/IEC JTC1/SC29/WG4 MPEG 147, M68232, July 2024,
    Full textEndNoteCitation
  3. Błażej Szydełko, Adrian Dziembowski, Gwangsoon Lee, Jun Young Jeong,
    Implementation of MIV DSDE sub-profile in TMIV,
    ISO/IEC JTC1/SC29/WG4 MPEG 144, m64709, October 2023,
    Full textEndNoteCitation
  4. Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Marek Domański, Gwangsoon Lee, Jun Young Jeong,
    Partial geometry assistance information,
    ISO/IEC JTC1/SC29/WG4 MPEG 136, M58047, October 2021,
    Full textEndNoteCitation
  5. Gordon Clare, Patrick Garus, Felix Henry, Błażej Szydełko, Dawid Mieloch, Adrian Dziembowski, Marek Domański, Gwangsoon Lee, Jun Young Jeong,
    Combination of m56626 and m56335 for Geometry Assistance SEI message,
    ISO/IEC JTC1/SC29/WG04 MPEG 134, M56950, April 2021,
    Full textEndNoteCitation

National journals

Patents & Applications

  1. Jun Young Jeong, Gwangsoon Lee, Dawid Mieloch, Marek Domański, Adrian Dziembowski, Błażej Szydełko, Dominika Klóska,
    Method for decoding immersive video and method for encoding immersive video,
    Patent office: USPTO, Status: pending,
    Application number: US 18/096455, Filling date: 12.01.2023,
    Publication number: 2023/0230285, Publication date: 20.07.2023,
    EndNoteCitation
  2. Jun Young Jeong, Gwangsoon Lee, Dawid Mieloch, Marek Domański, Błażej Szydełko, Adrian Dziembowski,
    Immersive video encoding method and immersive video decoding method,
    Patent office: USPTO, Status: pending,
    Application number: US 17/966420, Filling date: 14.10.2022,
    Publication number: US 2023/0124419, Publication date: 20.04.2023,
    EndNoteCitation

2024

  1. Jakub Stankowski, Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Jun Young Jeong, Gwangsoon Lee,
    A new approach to geometry features signaling,
    ISO/IEC JTC1/SC29/WG4 MPEG 147, M68843, July 2024,
    Full textEndNoteCitation

  2. Jakub Stankowski, Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Jun Young Jeong, Gwangsoon Lee,
    Signaling of extended geometry assistance,
    ISO/IEC JTC1/SC29/WG4 MPEG 147, M68232, July 2024,
    Full textEndNoteCitation

2023

  1. Jun Young Jeong, Gwangsoon Lee, Dawid Mieloch, Marek Domański, Adrian Dziembowski, Błażej Szydełko, Dominika Klóska,
    Method for decoding immersive video and method for encoding immersive video,
    Patent office: USPTO, Status: pending,
    Application number: US 18/096455, Filling date: 12.01.2023,
    Publication number: 2023/0230285, Publication date: 20.07.2023,
    EndNoteCitation

  2. Jun Young Jeong, Gwangsoon Lee, Dawid Mieloch, Marek Domański, Błażej Szydełko, Adrian Dziembowski,
    Immersive video encoding method and immersive video decoding method,
    Patent office: USPTO, Status: pending,
    Application number: US 17/966420, Filling date: 14.10.2022,
    Publication number: US 2023/0124419, Publication date: 20.04.2023,
    EndNoteCitation

  3. Dawid Mieloch, Adrian Dziembowski, Dominika Klóska, Błażej Szydełko, Jun Young Jeong, Gwangsoon Lee,
    A New Approach to Decoder-Side Depth Estimation in Immersive Video Transmission,
    IEEE Transactions on Broadcasting, Vol. 69, No. 4, 2023, pp. 951-965, ISSN: 1557-9611,
    Full textEndNoteCitationDOI

    Abstract

    This paper presents a novel approach to decoder-side depth estimation (DSDE) in immersive video transmission. The proposal improves the state-of-the-art coding approach by changing the encoding and decoding processes so that the decoder-side depth estimator can utilize partial geometry information about the scene from several available input depth maps. Proposed changes allow for significantly faster decoding and better quality of virtual viewports presented to the viewer. The paper proposes two approaches, namely input depth map assistance (IDMA) and extended IDMA (eIDMA), both compliant with the bitstream of MPEG immersive video (MIV) standard. IDMA involves sending full depth maps for a selected subset of input views, which are then used to refine and enhance the depth maps for the remaining views. In eIDMA, the decoder additionally reprojects decoded depth maps to the remaining views and enhances them with depth patches containing difficult-to-estimate areas. Proposed methods were tested under the ISO/IEC MPEG Video Coding common test conditions for MIV. The combination of two proposals, the adaptive IDMA, was shown to outperform the current state-of-the-art DSDE approach in the rendered video quality and the computational complexity of decoder. MPEG experts have appreciated the proposed approaches, which will comply with a new DSDE profile of the incoming second edition of the MIV standard.

  4. Błażej Szydełko, Adrian Dziembowski, Gwangsoon Lee, Jun Young Jeong,
    Implementation of MIV DSDE sub-profile in TMIV,
    ISO/IEC JTC1/SC29/WG4 MPEG 144, m64709, October 2023,
    Full textEndNoteCitation

2022

2021

  1. Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Marek Domański, Gwangsoon Lee, Jun Young Jeong,
    Partial geometry assistance information,
    ISO/IEC JTC1/SC29/WG4 MPEG 136, M58047, October 2021,
    Full textEndNoteCitation

  2. Gordon Clare, Patrick Garus, Felix Henry, Błażej Szydełko, Dawid Mieloch, Adrian Dziembowski, Marek Domański, Gwangsoon Lee, Jun Young Jeong,
    Combination of m56626 and m56335 for Geometry Assistance SEI message,
    ISO/IEC JTC1/SC29/WG04 MPEG 134, M56950, April 2021,
    Full textEndNoteCitation