Searched for: subject:"Cameras"
(1 - 20 of 30)

Pages

document
Labans, E. (author), Bisagni, C. (author)
The ability to steer carbon fibre tapes, varying the tow angle, can widen the designs possibilities of cylindrical shells that are one of the main components of aerospace structures. This research presents experimental and numerical investigation of two carbon fibre reinforced plastic cylindrical shells – a cylinder with conventional layup made...
journal article 2019
document
Duan, Zhiyao (author), Essid, Slim (author), Liem, C.C.S. (author), Richard, Gael (author)
In the physical sciences and engineering domains, music has traditionally been considered an acoustic phenomenon. From a perceptual viewpoint, music is naturally associated with hearing, i.e., the audio modality. Moreover, for a long time, the majority of music recordings were distributed through audio-only media, such as vinyl records,...
journal article 2019
document
Cabrera Quiros, L.C. (author), Demetriou, A.M. (author), Gedik, E. (author), van der Meij, Leander (author), Hung, H.S. (author)
We present MatchNMingle, a novel multimodal/multisensor dataset for the analysis of free-standing conversational groups and speed-dates in-the-wild. MatchNMingle leverages the use of wearable devices and overhead cameras to record social interactions of 92 people during real-life speed-dates, followed by a cocktail party. To our knowledge,...
journal article 2018
document
Chen, Junwen (author), Liu, Zhigang (author), Wang, H. (author), Nunez Vicencio, Alfredo (author), Han, Zhiwei (author)
The excitation and vibration triggered by the long-term operation of railway vehicles inevitably result in defective states of catenary support devices. With the massive construction of high-speed electrified railways, automatic defect detection of diverse and plentiful fasteners on the catenary support device is of great significance for...
journal article 2018
document
Cornel, W.A. (author), Westerweel, J. (author), Poelma, C. (author)
The challenge presented in this research is to determine the local volumetric bubble concentration (or void fraction) in the center of a microbubble cloud with limited optical access and without disturbing the flow. By applying defocused volumetric shadowgraphy to an aerated water column we were able to measure the characteristics of single...
conference paper 2018
document
Muller, K. (author), Tam, D.S.W. (author), Westerweel, J. (author)
Obtaining accurate experimental data from Lagrangian tracking and tomographic velocimetry requires an accurate and consistent camera calibration over multiple views. At length-scales that span beyond the laboratory environment obtaining a camera calibration can be challenging. Combining tools developed in computer vision and non-linear camera...
conference paper 2018
document
Liu Cheng, A. (author), Bier, H.H. (author), Mostafavi, Sina (author)
This paper presents a new instance in a series of discrete proof-of-concept implementations of comprehensively intelligent built-environments based on Design-to-Robotic-Production and -Operation (D2RP&O) principles developed at Delft University of Technology (TUD). With respect to D2RP, the featured implementation presents a customized...
conference paper 2017
document
Schakel, W.J. (author), Gorter, C.M. (author), de Winter, J.C.F. (author), van Arem, B. (author)
With the increasing number of vehicles equipped with Adaptive Cruise Control (ACC), it becomes important to assess its impact on traffic flow efficiency, in particular with respect to capacity and queue discharge rate. Simulation studies and surveys suggest that ACC has both positive and negative effects on traffic flow, but empirical...
journal article 2017
document
Luan, Ying (author), Renaud, Guillaume (author), Raymond, Jason L. (author), Segers, Tim (author), Lajoinie, Guillaume (author), Beurskens, Robert (author), Mastik, Frits (author), Kokhuis, Tom J A (author), van der Steen, A.F.W. (author), Versluis, Michel (author), de Jong, N. (author)
In this study we present a combined optical sizing and acoustical characterization technique for the study of the dynamics of single freely-floating ultrasound contrast agent microbubbles exposed to long burst ultrasound excitations up to the milliseconds range. A co-axial flow device was used to position individual microbubbles on a...
journal article 2016
document
Brunner, S. (author), Gruber, L. (author), Hirtl, A. (author), Suzuki, K (author), Marton, J. (author), Schaart, D.R. (author)
Photodetectors with excellent time resolution are becoming increasingly important in many applications in medicine, high energy- and nuclear physics applications, biology, and material science. Silicon photomultipliers (SiPM) are a novel class of solid-state photodetectors with good timing properties. While the time resolution of analog SiPMs...
journal article 2016
document
Ren, Y. (author), Kruit, P. (author)
Our group is developing a multibeam scanning electron microscope (SEM) with 196 beams in order to increase the throughput of SEM. Three imaging systems using, respectively, transmission electron detection, secondary electron detection, and backscatter electron detection are designed in order to make it as versatile as a single beam SEM. This...
journal article 2016
document
Daamen, W. (author), Yuan, Y. (author), Duives, D.C. (author), Hoogendoorn, S.P. (author)
Nowadays, many large scale events are organised in urban areas that are not designed to accomodate these large visitor flows, as not only the sheer number of people is larger than anticipated, but also their behaviour is different. For a timely deployment of crowd management measures, continuous information on the real-time traffic state on the...
conference paper 2016
document
Inacio, P.M.G. (author), Ditmar, P.G. (author), Klees, R. (author), Hashemifarahani, H. (author)
Star cameras (SCs) on board the GRACE satellites provide information about the attitudes of the spacecrafts. This information is needed to reduce the K-band ranging data to the centre of mass of the satellites. In this paper, we analyse GRACE SC errors using two months of real data of the primary and secondary SCs. We show that the errors...
journal article 2015
document
Melin, J. (author), Lauri, M. (author), Ritala, R. (author)
We construct a stereo vision system mounted on a micro air vehicle applying two high resolution consumer grade cameras. The system hardware and mechanical configuration are presented. A novel image processing algorithm specifically suited for high resolution stereo images is described, and its properties are discussed. Empirical data from...
conference paper 2014
document
Zhao, Q. (author)
Fluorescence microscopy is a well-established platform for biology and biomedical research (Chapter 2). Based on this platform, fluorescence lifetime imaging microscopy (FLIM) has been developed to measure fluorescence lifetimes, which are independent of fluorophore concentration and excitation intensity and offer more information about the...
doctoral thesis 2014
document
Zhao, Q. (author), Schelen, B. (author), Schouten, R. (author)
We have built an all-solid-state camera that is directly modulated at the pixel level for frequency-domain fluorescence lifetime imaging microscopy (FLIM) measurements. This novel camera eliminates the need for an image intensifier through the use of an application-specific charge coupled device design in a frequency-domain FLIM system. The...
journal article 2012
document
Gorte, B.G.H. (author), Sithole, G. (author)
The paper addresses range image segmentation, particularly of data recorded by range cameras, such as the Microsoft Kinect and the Mesa Swissranger SR4000. These devices record range images at video frame rates and allow for acqui-sition of 3-dimensional measurement sequences that can be used for 3D reconstruction of indoor environments from...
journal article 2012
document
Paris, R. (author), Thurner, T. (author), Berndorfer, T. (author), Yoo, H.W. (author), Schitter, G. (author)
Due to their reconfigurability and sensor-near signal processing, smart cameras are ideally suited for applications in optical metrology. This article describes ongoing research activities in this area and demonstrates the efficient implementation of complex algorithms on limited hardware through intelligent systems integration. This enables the...
journal article 2012
document
Mata Pavia, J. (author), Charbon, E. (author), Wolf, M. (author)
An imager for optical tomography was designed based on a detector with 128x128 single-photon pixels that included a bank of 32 time-to-digital converters. Due to the high spatial resolution and the possibility of performing time resolved measurements, a new contact-less setup has been conceived in which scanning of the object is not necessary....
conference paper 2011
document
Van Rooijen, V. (author), De Voogd-Claessen, L. (author), Lauche, K. (author), Jeanne, V. (author), Van der Vliet, R. (author)
This paper reports the development of a new product for unrestrained heart rate measurement to provide feedback and target training efforts in professional swimming. While training is considered to be the key to becoming a top athlete, little is known about how to determine the right training course for individual athletes (Maase, 2009, ). In...
journal article 2010
Searched for: subject:"Cameras"
(1 - 20 of 30)

Pages