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Ioannis Pitas
Researcher at Aristotle University of Thessaloniki
Publications - 826
Citations - 26338
Ioannis Pitas is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Facial recognition system & Digital watermarking. The author has an hindex of 76, co-authored 795 publications receiving 24787 citations. Previous affiliations of Ioannis Pitas include University of Bristol & University of York.
Papers
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On fast running max-min filtering
Dinu Coltuc,Ioannis Pitas +1 more
TL;DR: A flexible hardware implementation for n ranging between two consecutive powers of two is discussed, very close to log/sub 2/ n, where n is the size of the given window.
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Age of Information in SWIPT-Enabled Wireless Communication System for 5GB
TL;DR: This work uses two SWIPT protocols: time-switching and power- splitting at the relay node and compute the AoI performance, which has a great potential to energize energy constrained communication nodes in wireless sensor networks and Internet of Things (IoT) applications while maintaining a high degree of Quality-of-Service (QoS).
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Multimodal speaker clustering in full length movies
Ioannis Kapsouras,Anastasios Tefas,Nikos Nikolaidis,Geoffroy Peeters,L. Benaroya,Ioannis Pitas +5 more
TL;DR: The results proved that the visual information can improve the speaker clustering accuracy and hence the diarization process, and introduced a new video-based feature, called actor presence, that can be used to enhance audio-based speaker clusters.
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Learning Discriminant Person-Specific Facial Models Using Expandable Graphs
TL;DR: A novel algorithm for finding discriminant person-specific facial models is proposed and tested for frontal face verification and significantly enhances the performance of elastic graph matching in frontal face verify.
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Robust face recognition via low-rank sparse representation-based classification
TL;DR: Experimental results on several face image databases show the effectiveness and robustness of LRSRC in face image recognition.