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Casao, S. (author), Serra Gomez, A. (author), Murillo, Ana C. (author), Böhmer, J.W. (author), Alonso Mora, J. (author), Montijano, Eduardo (author)Smart cameras are an essential component in surveillance and monitoring applications, and they have been typically deployed in networks of fixed camera locations. The addition of mobile cameras, mounted on robots, can overcome some of the limitations of static networks such as blind spots or back-lightning, allowing the system to gather the...journal article 2024
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Paredes-Vallés, Federico (author)In the ever-evolving landscape of robotics, the quest for advanced synthetic machines that seamlessly integrate with human lives and society becomes increasingly paramount. At the heart of this pursuit lies the intrinsic need for these machines to perceive, understand, and navigate their surroundings autonomously. Among the senses, vision...doctoral thesis 2023
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Yang, Yufeng (author)Event-based cameras promise new opportunities for smart vision systems deployed at the edge. Contrary to their conventional frame-based counterparts, event-based cameras generate temporal light intensity changes as events on a per-pixel basis, enabling ultra-low latency with microsecond-scale temporal resolution, low power consumption at...master thesis 2023
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van Geerenstein, Mathijs (author)3D object detection models that exploit both LiDAR and camera sensor features are top performers in large-scale autonomous driving benchmarks. A transformer is a popular network architecture used for this task, in which so-called object queries act as candidate objects. Initializing these object queries based on current sensor inputs leads to...master thesis 2023
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Hollman, Seb (author)This graduation project emerged from an existing collaboration between the Delft University of Technology and the Responsible Sensing Lab; a project of the Amsterdam Institute of Advanced Metropolitan Solutions. The Initial Assignment had the goal of enhancing the feeling of safety in public environments through the use of responsible sensing....master thesis 2023
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Kaldenbach, Marco (author)The advancement of wireless communication technologies has transformed how we exchange information in our daily lives. However, the increasing demand for wireless communication faces challenges due to limited radio wave bandwidth availability. In this context, visible light communication has emerged as a promising alternative, utilizing visible...master thesis 2023
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van der Kolk, Niels (author)Hidden spy cameras are a growing worldwide threat to people’s intimacy and privacy. With the growing interest in full-screen devices and the underlying development of under-screen cameras, a new type of potential security risk is introduced. Recent smartphones such as the ZTE AXON 40 already demonstrate that it’s infeasible to detect the camera...master thesis 2023
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Hoogenberg, Friso (author)Gravitational waves predicted by Einstein have been measured in a few observatories worldwide. These detectors are complex interferometers with sizes of kilometers. Misalignments and aberrations in their optical set-up can create higher-order modes in the laser beam. These higher-order mode effects should be compensated to improve the...master thesis 2023
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Katkam, Rohan (author)The current wireless networks can face congestion issues due to the increasing number of digital devices. One way to overcome this is to establish communica-tion at a different range of frequencies, specifically in visible light. Most studies in Visible Light Communication (VLC) systems use active light sources like LEDs for transmission, but...master thesis 2023
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SUN, Hanchu (author)Surveillance cameras have become increasingly prevalent in public areas worldwide, including in Amsterdam. In Amsterdam, the number and intensity of surveillance cameras in public spaces, such as streets, parks, and plazas, have reportedly increased, even in locations where they were already well-established. In addition to the growing number of...master thesis 2023
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LIU, YUSHAN (author)Antarctica plays a crucial role in global climate change research, but current models only extend back to the satellite era from the 1990s to the present, leaving significant gaps in our understanding of the continent’s past and covering only limited locations. Historical aerial surveys, which may extend back to the 1930s and cover more...student report 2023
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Pandharipande, Ashish (author), Cheng, Chih Hong (author), Dauwels, J.H.G. (author), Gurbuz, Sevgi Z. (author), Ibanez-Guzman, Javier (author), Li, Guofa (author), Piazzoni, Andrea (author), Wang, Pu (author), Santra, Avik (author)Automotive perception involves understanding the external driving environment and the internal state of the vehicle cabin and occupants using sensor data. It is critical to achieving high levels of safety and autonomy in driving. This article provides an overview of different sensor modalities, such as cameras, radars, and light detection and...journal article 2023
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Wang, C.W. (author), Jiang, W. (author), Yang, K. (author), Sarsenbayeva, Z. (author), Tag, B. (author), Dingler, T. (author), Goncalves, J. (author), Kostakos, V. (author)Objectives: Hand hygiene has long been promoted as the most effective way to prevent the transmission of infection. However, due to low compliance and low quality of hand hygiene reported in previous studies, constant monitoring of hand hygiene compliance and quality among healthcare workers is crucial. This study investigated the feasibility...journal article 2023
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Roth, M. (author), Gavrila, D. (author)We present intrApose, a novel method for continuous 6 DOF head pose estimation from a single camera image without prior detection or landmark localization. We argue that using camera intrinsics alongside the intensity information is essential for accurate pose estimation. The proposed head pose estimation framework is crop-aware and scale...journal article 2023
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Stefanidis, K. B. (author), Schiemer, C. (author), Freeman, J. (author), Mulgrew, K. (author), Oviedo-Trespalacios, O. (author), Truelove, V. (author)Objective: Mobile phone use while driving is a major cause of distraction and area for concern. Numerous factors have been shown to be associated with engagement in mobile phone use while driving, including peer influences and social media content encouraging the behavior. Phone detection cameras are being increasingly utilized to enforce the...journal article 2023
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Guffanti, Diego (author), Lemus Perez, D.S. (author), Vallery, H. (author), Brunete, Alberto (author), Hernando, Miguel (author), Horemans, H.L.D. (author)Three-dimensional (3D) cameras used for gait assessment obviate the need for bodily markers or sensors, making them particularly interesting for clinical applications. Due to their limited field of view, their application has predominantly focused on evaluating gait patterns within short walking distances. However, assessment of gait...journal article 2023
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Zeng, Jinchen (author), Butler, R.M. (author), van den Dobbelsteen, J.J. (author), Hendriks, B.H.W. (author), van der Elst, M. (author), Dauwels, J.H.G. (author)In this paper, we aim to design an automatic camera pose estimation pipeline for clinical spaces such as catheterization laboratories. Our proposed pipeline exploits Scaled-YOLOv4 to detect fixed objects. We adopt the self-supervised key-point detector SuperPoint in combination with SuperGlue, a keypoint matching technique based on graph neural...conference paper 2023
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Hoogelander, M. (author), van Berkel, S.L. (author), Malotaux, E.S. (author), Alonso Del Pino, M. (author), Cavallo, D. (author), Spirito, M. (author), Llombart, Nuria (author)This article presents the development of a focal plane array (FPA) for terahertz imaging applications with a near diffraction-limited resolution achieved through a very tight sampling of the focal plane. The antenna array is integrated with direct detectors in a 22-nm CMOS technology and operates from 200 to 600 GHz. The tight sampling of the...journal article 2023
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Abedin, K.M. (author), Tao, N. (author), Anisimov, A. (author), Groves, R.M. (author)The performance of defect detection in composite materials using digital shearography is important for correct decision-making in non-destructive testing. In this work, we compared a high-resolution 24-megapixel digital still camera (DSLR) and a conventional medium-resolution 5-megapixel camera to determine the detectability of blind holes in...conference paper 2023
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Alfrink, Kars (author), Keller, A.I. (author), Doorn, N. (author), Kortuem, G.W. (author)Local governments increasingly use artificial intelligence (AI) for automated decision-making. Contestability, making systems responsive to dispute, is a way to ensure they respect human rights to autonomy and dignity. We investigate the design of public urban AI systems for contestability through the example of camera cars: human-driven...conference paper 2023