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Towards Better Quality of Experience in HTTP Adaptive Streaming

16th International Conference on Signal Image Technology & Internet based Systems October 19-21, 2022 | Dijon, France Conference Website [PDF] Babak Taraghi (AAU, Austria), Selina Zoë Haack (AAU, Austria), and Christian Timmerer (AAU, Austria) Abstract: HTTP Adaptive Streaming (HAS) is nowadays … Continue reading

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Hadi Amirpour to give a talk at INSA France

LiVE: Toward Better Live Video Experience INSA, France  27th September 2022 | Rennes, France   Abstract: In this presentation, we first introduce the principles of video streaming and the existing challenges. While live video streaming is expected to continue growing … Continue reading

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Secure Reversible Data Hiding in Encrypted Images based on Classification Encryption Difference

IEEE 24th Workshop on MultiMedia Signal Processing (MMSP) September 26-28, 2022 | Shanghai, China [PDF] Lingfeng Qu (Southwest Jiaotong University),  Hadi Amirpour (Alpen-Adria-Universität Klagenfurt),   Mohammad Ghanbari (University of Essex, UK), and Christian Timmerer (Alpen-Adria-Universität Klagenfurt), Hongjie He (Southwest Jiaotong University) Abstract: This paper introduces an algorithm to … Continue reading

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Between Two and Six? Towards Correct Estimation of JND Step Sizes for VMAF-based Bitrate Laddering

 14th International Conference on Quality of Multimedia Experience (QoMEX) September 5-7, 2022 | Lippstadt, Germany [PDF][Poster] Hadi Amirpour (Alpen-Adria-Universität Klagenfurt), Raimund Schatz (AIT Austrian Institute of Technology, Austria), and Christian Timmerer (Alpen-Adria-Universität Klagenfurt) Abstract: We currently witness the rapidly growing importance of intelligent video streaming quality … Continue reading

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FuRA: Fully Random Access Light Field Image Compression

10th European Workshop on Visual Information Processing (EUVIP) September 11-14, 2022 | Lisbon, Portugal [PDF] Hadi Amirpour (Alpen-Adria-Universität Klagenfurt),   Christine Guillemot (INRIA, France), and Christian Timmerer (Alpen-Adria-Universität Klagenfurt) Abstract: Light fields are typically represented by multi-view images and enable post-capture actions such as refocusing and … Continue reading

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Detection and Localization of Video Transcoding From AVC to HEVC Based on Deep Representations of Decoded Frames and PU Maps

IEEE Transactions on Multimedia [PDF] Haichao Yao (Beijing Jiaotong University), Rongrong Ni (Beijing Jiaotong University), Hadi Amirpour (Alpen-Adria-Universität Klagenfurt), Christian Timmerer (Alpen-Adria-Universität Klagenfurt), Yao Zhao (Beijing Jiaotong University). Abstract: In general, manipulated videos will eventually undergo recompression. Video transcoding will occur when … Continue reading

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Hadi Amirpour to give a talk at Fraunhofer FOKUS MWS

Video Encoding Optimizations for Live Video Streaming FOKUS Media Web Symposium 20th – 24th June 2022 | Berlin, Germany   Abstract: Live video streaming is expected to become mainstream in the fifth-generation (5G) mobile networks. Optimizing video encoding for live video … Continue reading

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