References of "Verly, Jacques"
     in
Bookmark and Share    
See detailGeneral Chair and Co-Organizer of (2015) "3D Stereo MEDIA: The International 3D Summit for Science, Technology, Art, and Business". Held in Liège, Belgium, on 14-17 Dec 2015, at Theater of Liège and University of Liège. 7th edition. J. G. Verly initiated event in 2008.
Verly, Jacques ULg

Book published by Image&3D Europe ASBL (2015)

3D Stereo MEDIA 2015 was held in Liège, Belgium, on 14-15 Dec 2015, and comprised the following sub-events: 3D Workshop in Cannes (Festival de Cannes, American Pavilion, Cannes, France, 15 May 2015 ... [more ▼]

3D Stereo MEDIA 2015 was held in Liège, Belgium, on 14-15 Dec 2015, and comprised the following sub-events: 3D Workshop in Cannes (Festival de Cannes, American Pavilion, Cannes, France, 15 May 2015), Scientific Conference: 2015 International Conference on 3D Imaging (IC3D 2015), 3D Content Financing Market, International 3D Festival, Professional Conference, 3D Academy, Awards Evening. [less ▲]

Detailed reference viewed: 28 (1 ULg)
See detailLa 3D, son histoire et son actualité à l'ULg
Verly, Jacques ULg

Conference given outside the academic context (2015)

Detailed reference viewed: 25 (2 ULg)
See detailEvaluation of head-up and head-down displays in stereoscopic driving simulation environment
Grogna, David ULg; Sodnik, Jaka; Verly, Jacques ULg et al

Conference (2015, November 10)

Detailed reference viewed: 32 (2 ULg)
See detailLa 3D dans toutes ses dimensions ! - Introduction
Verly, Jacques ULg

Speech/Talk (2015)

Detailed reference viewed: 18 (2 ULg)
Full Text
Peer Reviewed
See detailThermal-vacuum and vibration test campaigns that led to the OUFTI-1 nanosatellite being fully qualified by ESA for launch and operation in Earth orbit
De Dijcker, Sébastien ULg; Werner, Xavier ULg; Broun, Valery ULg et al

Conference (2015, September)

OUFTI-1’s test campaigns were divided into two phases. The goal of Phase 1 is to demonstrate that the different functionalities of the satellite work as intended. The goal of Phase 2 is to subsequently ... [more ▼]

OUFTI-1’s test campaigns were divided into two phases. The goal of Phase 1 is to demonstrate that the different functionalities of the satellite work as intended. The goal of Phase 2 is to subsequently demonstrate that the satellite can withstand the launch into orbit, and then work properly in the conditions of space. The corresponding tests thus involve both thermal-vacuum environmental tests (in appropriate test chambers) and vibration tests (on appropriate vibration pods). The conditions simulated during these tests are as close as possible to those that the satellite will encounter during its mission, covering as many cases as possible, amid uncertainties, since neither the launcher nor the orbit were known prior to the tests. Both phases involve the flight model (FM), in accordance with the so-called "protoflight" approach. [less ▲]

Detailed reference viewed: 119 (7 ULg)
Full Text
Peer Reviewed
See detailOverview of the ground facilities for controlling the OUFTI-1 nanosatellite and for routing its radio-communications through the worldwide D-STAR repeater network
Werner, Xavier ULg; De Dijcker, Sébastien ULg; Broun, Valery ULg et al

Poster (2015, September)

Overview of the current state and upgrade plan of the OUFTI-1 nanosatellite ground segment. The OUFTI-1 project was initiated in September 2007. The OUFTI-1 nanosatellite is a one-unit (1U) CubeSat. Its ... [more ▼]

Overview of the current state and upgrade plan of the OUFTI-1 nanosatellite ground segment. The OUFTI-1 project was initiated in September 2007. The OUFTI-1 nanosatellite is a one-unit (1U) CubeSat. Its main payload is - in essence - a D-STAR repeater in space, potentially the first one ever. D-STAR is an amateur-radio (“ham”), digital radio-communication protocol (with associated equipment) allowing the simultaneous transmission of voice and data, such as GPS coordinates and call-signs. The satellite was tested in 2014 and 2015 within the ESA’s Education Office Fly Your Satellite! (FYS) project, and it is now fully qualified and ready for launch and operation in space. [less ▲]

Detailed reference viewed: 58 (2 ULg)
Full Text
Peer Reviewed
See detailArchitecture of educational OUFTI-1 nanosatellite of University of Liège, as tested in preparation for space flight
Werner, Xavier ULg; De Dijcker, Sébastien ULg; Broun, Valery ULg et al

Poster (2015, September)

Overview of the OUFTI-1 nanosatellite space segment. The OUFTI-1 project was initiated in September 2007. The nanosatellite is a one-unit (1U) CubeSat. Its main payload is - in essence - a D-STAR repeater ... [more ▼]

Overview of the OUFTI-1 nanosatellite space segment. The OUFTI-1 project was initiated in September 2007. The nanosatellite is a one-unit (1U) CubeSat. Its main payload is - in essence - a D-STAR repeater in space, potentially the first one ever. D-STAR is an amateur-radio (“ham”), digital radio communication - protocol (with associated equipment) allowing the simultaneous transmission of voice and data, such as GPS coordinates and call-signs. [less ▲]

Detailed reference viewed: 89 (2 ULg)
Peer Reviewed
See detailHow novice and expert drivers adjust their driving behavior when they feel drowsy?
Berastegui, Pierre ULg; Piette, Christine; François, Clémentine ULg et al

Poster (2015, July 29)

This paper aims to explore adaptive behaviors developed by drivers to prevent drowsiness. Specifically, we postulate that driving expertise is associated with better drowsiness awareness, allowing experts ... [more ▼]

This paper aims to explore adaptive behaviors developed by drivers to prevent drowsiness. Specifically, we postulate that driving expertise is associated with better drowsiness awareness, allowing experts to adequately adjust their driving behaviors when they feel drowsy. The present study was carried on a high-fidelity driving simulator coupled with an innovative system allowing objective sleepiness assessment based on EEG and Eye-tracking data. The Karolinska Sleepiness Scale was used to evaluate subjective drowsiness. The ratio between objective and subjective assessments gave an indicator of drowsiness awareness. Standard Deviation of Lateral Position (SDLP) was used as a measure of performance while driving speed and ocular fixations were recorded in order to highlight adaptive behaviors. 16 subjects were recruited from general population and categorized in two groups of expertise based on the Belgian Institute for Road Safety’s criteria. Our results show that expert drivers show better drowsiness awareness than novices and mobilize speed increasing and vigilance reallocation strategies to maintain satisfactory level of drowsiness. [less ▲]

Detailed reference viewed: 79 (27 ULg)
Full Text
Peer Reviewed
See detailDevelopment and validation of an accelerometer-based method for quantifying gait events
Boutaayamou, Mohamed ULg; Schwartz, Cédric ULg; Stamatakis, Julien et al

in Medical Engineering & Physics (2015)

An original signal processing algorithm is presented to automatically extract, on a stride-by-stride basis, four consecutive fundamental events of walking, heel strike (HS), toe strike (TS), heel-off (HO ... [more ▼]

An original signal processing algorithm is presented to automatically extract, on a stride-by-stride basis, four consecutive fundamental events of walking, heel strike (HS), toe strike (TS), heel-off (HO), and toe-off (TO), from wireless accelerometers applied to the right and left foot. First, the signals recorded from heel and toe three-axis accelerometers are segmented providing heel and toe flat phases. Then, the four gait events are defined from these flat phases. The accelerometer-based event identification was validated in seven healthy volunteers and a total of 247 trials against reference data provided by a force plate, a kinematic 3D analysis system, and video camera. HS, TS, HO, and TO were detected with a temporal accuracy ± precision of 1.3 ms ± 7.2 ms, ‒4.2 ms ± 10.9 ms, ‒3.7 ms ± 14.5 ms, and ‒1.8 ms ± 11.8 ms, respectively, with the associated 95% confidence intervals ranging from ‒6.3 ms to 2.2 ms. It is concluded that the developed accelerometer-based method can accurately and precisely detect HS, TS, HO, and TO, and could thus be used for the ambulatory monitoring of gait features computed from these events when measured concurrently in both feet. [less ▲]

Detailed reference viewed: 175 (58 ULg)
Peer Reviewed
See detailSegmentation of gait cycles using foot-mounted 3D accelerometers
Boutaayamou, Mohamed ULg; Bruls, Olivier ULg; Denoël, Vincent ULg et al

in Proceedings of the IEEE International Conference on 3D Imaging 2015 (2015)

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The ... [more ▼]

We describe a new gait segmentation method based on the continuous wavelet transform to identify stride-by-stride gait cycles from measurements of foot-mounted three-dimensional (3D) accelerometers. The detection of such gait cycles is indeed a crucial step for an accurate extraction of relevant gait events such as heel strike, toe strike, heel-off, and toe-off. We demonstrate the ability of this segmentation method, used in conjunction with a validated extraction algorithm, to calculate the following gait (duration) parameters for each gait cycle during the gait of a healthy young subject and of an elderly subject with Parkinson’s disease (PD) in OFF and ON states: durations of (1) loading response, (2) mid-stance, (3) push-off, (4) stance, (5) swing, (6) stride, (7) step, and (8) double support phases. The experimental results show that the proposed method can extract relevant refined gait parameters to quantify subtle gait disturbances in subjects with PD. [less ▲]

Detailed reference viewed: 59 (8 ULg)
Peer Reviewed
See detailAmbulatory system using wearable accelerometers for gait analysis in Parkinson’s disease
Boutaayamou, Mohamed ULg; Demonceau, Marie ULg; Schwartz, Cédric ULg et al

in Proceedings of the 14th Belgian Day on Biomedical Engineering (2015)

We describe a signal-processing algorithm for gait analysis in Parkinson’s disease (PD) using an ambulatory system with wearable accelerometers. This algorithm is versatile enough to detect, on a stride ... [more ▼]

We describe a signal-processing algorithm for gait analysis in Parkinson’s disease (PD) using an ambulatory system with wearable accelerometers. This algorithm is versatile enough to detect, on a stride-by-stride basis, refined gait parameters that quantify subtle gait disturbances in PD in a rater-independent way. [less ▲]

Detailed reference viewed: 59 (10 ULg)
See detailOrganizer and General Chair of 2014 International Conference on 3D Food Printing
Verly, Jacques ULg

Book published by University of Liège (2014)

Detailed reference viewed: 40 (0 ULg)
See detailGeneral Chair and Co-Organizer of (2014) "3D Stereo MEDIA: The International 3D Summit for Science, Technology, Art, and Business". Held in Liège, Belgium, on 9-11 Dec 2014, at Theater of Liège and University of Liège. 6th edition. J. G. Verly initiated event in 2008.
Verly, Jacques ULg

Book published by Image&3D Europe ASBL (2014)

3D Stereo MEDIA 2014 was held in Liège, Belgium, on 9-11 Dec 2014, and comprised the following sub-events: 3D Workshop in Cannes (Festival de Cannes, American Pavilion, Cannes, France, 16 May 2015 ... [more ▼]

3D Stereo MEDIA 2014 was held in Liège, Belgium, on 9-11 Dec 2014, and comprised the following sub-events: 3D Workshop in Cannes (Festival de Cannes, American Pavilion, Cannes, France, 16 May 2015), Scientific Conference: 2014 International Conference on 3D Imaging (IC3D 2014), 3D Content Financing Market, International 3D Festival, Professional Conference, B2B Meetings, Awards Evening. [less ▲]

Detailed reference viewed: 12 (0 ULg)
See detailOrganizer, General Chair, and Editor of 2014 International Conference on 3D Imaging
Verly, Jacques ULg

Book published by Institute of Electrical and Electronics Engineers (IEEE) (2014)

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailDevelopment and validation of a 3D kinematic-based method for determining gait events during overground walking
Boutaayamou, Mohamed ULg; Schwartz, Cédric ULg; Denoël, Vincent ULg et al

in IEEE International Conference on 3D Imaging (IC3D) (2014, December 09)

A new signal processing algorithm is developed for quantifying heel strike (HS) and toe-off (TO) event times solely from measured heel and toe coordinates during overground walking. It is based on a rough ... [more ▼]

A new signal processing algorithm is developed for quantifying heel strike (HS) and toe-off (TO) event times solely from measured heel and toe coordinates during overground walking. It is based on a rough estimation of relevant local 3D position signals. An original piecewise linear fitting method is applied to these local signals to accurately identify HS and TO times without the need of using arbitrary experimental coefficients. We validated the proposed method with nine healthy subjects and a total of 322 trials. The extracted temporal gait events were compared to reference data obtained from a force plate. HS and TO times were identified with a temporal accuracy ± precision of 0.3 ms ± 7.1 ms, and –2.8 ms ± 7.2 ms in comparison with reference data defined with a force threshold of 10 N. This algorithm improves the accuracy of the HS and TO detection. Furthermore, it can be used to perform stride-by-stride analysis during overground walking with only recorded heel and toe coordinates. [less ▲]

Detailed reference viewed: 81 (20 ULg)