• Binocular-Combination-Oriented Perceptual Rate-Distortion Optimization for Stereoscopic Video Coding 

      Liu Y., Liu J., Argyriou A., Ci S. (2018)
      In the chain of stereoscopic video processing, stereoscopic video coding and viewing are usually two independent stages. Conventional stereoscopic video coding puts an emphasis on improving the coding efficiency by seeking ...
    • Evaluation of heterogeneous scheduling algorithms for wavefront and tile parallelism in video coding 

      Panagou N., Koziri M., Papadopoulos P.K., Oikonomou P., Tziritas N., Kolomvatsos K., Loukopoulos T., Khan S.U. (2019)
      Video is by far the “biggest” Big Data, stretching network and storage capacity to their limits. To handle the situation, video compression has been an active field of study for many years, producing output of huge commercial ...
    • Fast Rules to Speedup HEVC to VVC Transcoding 

      Panagou N., Belememis P., Papadopoulos P.K., Koziri M., Loukopoulos T. (2021)
      With the advent of the newly introduced Versatile Video Coding Standard (VVC) the need for converting legacy content from its widely used predecessor, High Efficiency Video Coding (HEVC), to the new format has emerged due ...
    • On evaluating the impact of tile partitioning in AV1 

      Panagou N., Papadopoulos P.K., Koziri M., Loukopoulos T. (2018)
      The advent of 4K and 8K resolutions in cameras and TV sets, posed a challenge to Video on Demand (VoD) and live streaming industry since the network overhead compared to FullHD was multiplied. For this reason, new video ...
    • On planning the adoption of new video standards in social media networks: a general framework and its application to HEVC 

      Koziri M., Papadopoulos P.K., Tziritas N., Dadaliaris A.N., Loukopoulos T., Stamoulis G.I. (2017)
      In recent years, we have witnessed an explosion in the growth of social media networks, powered by the proliferation of handheld smart devices with high processing capabilities and a plethora of sensors including high-resolution ...
    • On predicting bottlenecks in wavefront parallel video coding using deep neural networks 

      Panagou N., Oikonomou P., Papadopoulos P.K., Koziri M., Loukopoulos T., Iakovidis D. (2019)
      Video coding incurs high computational complexity particularly at the encoder side. For this reason, parallelism is used at the various encoding steps. One of the popular coarse grained parallelization tools offered by ...
    • Tile Based Wavefront Parallelism in HEVC 

      Papaioannou G.I., Koziri M.G., Papadopoulos P.K., Loukopoulos T., Anagnostopoulos I. (2020)
      High Efficiency Video Coding (HEVC) was developed to tackle the 4K resolution era, achieving up to 50% more compression efficiency (for the same video quality) compared to its predecessor H.264/AVC. However, this performance ...