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- University of LisbonPT261 papers
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29 papers · 1 filter
Using Wavelet Domain Fingerprints to Improve Source Camera Identification
Xinle Tian, Matthew Nunes, Emiko Dupont +3
Camera fingerprint detection plays a crucial role in source identification and image forensics, with wavelet denoising approaches proving particularly effective for extracting sens…
Deep Learning-based Event Data Coding: A Joint Spatiotemporal and Polarity Solution
Abdelrahman Seleem, André F. R. Guarda, Nuno M. M. Rodrigues +1
Neuromorphic vision sensors, commonly referred to as event cameras, generate a massive number of pixel-level events, composed by spatiotemporal and polarity information, thus deman…
A Double Deep Learning-based Solution for Efficient Event Data Coding and Classification
Abdelrahman Seleem, André F. R. Guarda, Nuno M. M. Rodrigues +1
Event cameras have the ability to capture asynchronous per-pixel brightness changes, called "events", offering advantages over traditional frame-based cameras for computer vision a…
Deep Learning-based Compressed Domain Multimedia for Man and Machine: A Taxonomy and Application to Point Cloud Classification
Abdelrahman Seleem, André F. R. Guarda, Nuno M. M. Rodrigues +1
In the current golden age of multimedia, human visualization is no longer the single main target, with the final consumer often being a machine which performs some processing or co…
Remote Pathological Gait Classification System
Pedro Albuquerque, Joao Machado, Tanmay Tulsidas Verlekar +2
Several pathologies can alter the way people walk, i.e. their gait. Gait analysis can therefore be used to detect impairments and help diagnose illnesses and assess patient recover…
CapsField: Light Field-based Face and Expression Recognition in the Wild using Capsule Routing
Alireza Sepas-Moghaddam, Ali Etemad, Fernando Pereira +1
Light field (LF) cameras provide rich spatio-angular visual representations by sensing the visual scene from multiple perspectives and have recently emerged as a promising technolo…