Mr. Sion Jennings Profile

Sion Jennings

Research Officer at National Research Council Canada

SPIE Involvement:

Conference Program Committee | Conference Chair | Author

Publications (30)

PROCEEDINGS ARTICLE | May 25, 2012

Flight test evaluation of a prototype optical instrument for airborne sense-and-avoid applications

Proc. SPIE. 8387, Unmanned Systems Technology XIV

KEYWORDS: Target detection, Signal to noise ratio, Optical components, Point spread functions, Visualization, Cameras, Sensors, Modulation transfer functions, Signal detection, Prototyping

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PROCEEDINGS ARTICLE | May 22, 2012

Rotary wing brown-out symbology: the DVEST test

Proc. SPIE. 8383, Head- and Helmet-Mounted Displays XVII; and Display Technologies and Applications for Defense, Security, and Avionics VI

KEYWORDS: Defense and security, Driver's vision enhancers, Safety, Visualization, Sensors, Databases, Video, Clouds, Head, Visibility

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PROCEEDINGS ARTICLE | June 1, 2011

Millimeter-wave data acquisition for terrain mapping, obstacle detection, and dust penetrating capability testing

Proc. SPIE. 8042, Display Technologies and Applications for Defense, Security, and Avionics V; and Enhanced and Synthetic Vision 2011

KEYWORDS: Radar, Extremely high frequency, Visualization, Cameras, Sensors, Control systems, Data acquisition, Associative arrays, Algorithm development, Data fusion

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PROCEEDINGS ARTICLE | May 2, 2009

Flight performance using a hyperstereo helmet-mounted display: aircraft handling

Proc. SPIE. 7326, Head- and Helmet-Mounted Displays XIV: Design and Applications

KEYWORDS: Safety, Error analysis, Fourier transforms, Control systems, Head, Analytical research, Head-mounted displays, Night vision systems, Global Positioning System, Night vision goggles

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PROCEEDINGS ARTICLE | May 2, 2009

Flight performance using a hyperstereo helmet-mounted display: adaptation to hyperstereopsis

Proc. SPIE. 7326, Head- and Helmet-Mounted Displays XIV: Design and Applications

KEYWORDS: Defense and security, Eye, Visualization, Sensors, 3D modeling, Night vision, Visual system, Head-mounted displays, Night vision systems, Night vision goggles

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PROCEEDINGS ARTICLE | May 2, 2009

Flight performance using a hyperstereo helmet-mounted display: post-flight debriefing questionnaire

Proc. SPIE. 7326, Head- and Helmet-Mounted Displays XIV: Design and Applications

KEYWORDS: Safety, Curium, Visualization, Sensors, Control systems, Distortion, Head, Image sensors, Head-mounted displays, Aircraft structures

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SPIE Conference Volume | April 30, 2009

Head- and Helmet-Mounted Displays XIV: Design and Applications

SPIE Conference Volume | May 19, 2008

Head- and Helmet-Mounted Displays XIII: Design and Applications

PROCEEDINGS ARTICLE | April 30, 2008

Development of NVG test maneuvers for civilian aircraft

Proc. SPIE. 6955, Head- and Helmet-Mounted Displays XIII: Design and Applications

KEYWORDS: Driver's vision enhancers, Goggles, Mirrors, Displays, Visualization, Fourier transforms, Control systems, Head, Light sources and illumination, Head-mounted displays

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PROCEEDINGS ARTICLE | April 14, 2008

Low light comparison of target visibility with night vision goggles

Proc. SPIE. 6955, Head- and Helmet-Mounted Displays XIII: Design and Applications

KEYWORDS: Goggles, Light sources, Visualization, Computer simulations, Light sources and illumination, Contrast sensitivity, Environmental sensing, Night vision goggles, Standards development, Visibility

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PROCEEDINGS ARTICLE | May 1, 2007

Effects of image intensifier halo on perceived layout

Proc. SPIE. 6557, Head- and Helmet-Mounted Displays XII: Design and Applications

KEYWORDS: Light sources, Eye, Light emitting diodes, Visualization, Cameras, Night vision, Digital imaging, Photomasks, Image intensifiers, Visibility

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PROCEEDINGS ARTICLE | May 1, 2007

Preliminary assessment of night vision goggles in airborne forest fire suppression

Proc. SPIE. 6557, Head- and Helmet-Mounted Displays XII: Design and Applications

KEYWORDS: Goggles, Safety, Visualization, Surgery, Opacity, Combustion, Light sources and illumination, Reconnaissance, Night vision goggles, Visibility

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PROCEEDINGS ARTICLE | May 1, 2007

Comparison of an NVG model with experiments to elucidate temporal behaviour

Proc. SPIE. 6557, Head- and Helmet-Mounted Displays XII: Design and Applications

KEYWORDS: Light sources, Light emitting diodes, Modulation, Cameras, Image processing, Laser energy, Laser processing, Automatic control, Pulsed laser operation, Performance modeling

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PROCEEDINGS ARTICLE | April 27, 2007

Flight assessment of an integrated DNAW helicopter pilotage display system: flight trial HAWKOWL

Proc. SPIE. 6559, Enhanced and Synthetic Vision 2007

KEYWORDS: Image fusion, Visualization, Image processing, Video, Control systems, Head, Navigation systems, Video processing, Digital video recorders, Global Positioning System

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PROCEEDINGS ARTICLE | May 18, 2006

Spatial navigation using night vision goggles

Proc. SPIE. 6224, Helmet- and Head-Mounted Displays XI: Technologies and Applications

KEYWORDS: Goggles, Visualization, Night vision, Navigation systems, Head-mounted displays, Cognition, Electro optics, Visual optics, Night vision goggles, Information visualization

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PROCEEDINGS ARTICLE | May 19, 2005

Physical modeling and characterization of the halo phenomenon in night vision goggles

Proc. SPIE. 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications

KEYWORDS: Point spread functions, Light sources, Light emitting diodes, Visual process modeling, Data modeling, Reflection, Imaging systems, Scattering, Cameras, Night vision goggles

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PROCEEDINGS ARTICLE | May 19, 2005

Light source halos in night vision goggles: psychophysical assessments

Proc. SPIE. 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications

KEYWORDS: Goggles, Light sources, Light emitting diodes, Visualization, Image processing, Photography, Distance measurement, Light sources and illumination, Target recognition, Night vision goggles

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PROCEEDINGS ARTICLE | May 19, 2005

Comparison of three night vision intensification tube technologies on resolution acuity: results from grating and Hoffman ANV-126 tasks

Proc. SPIE. 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications

KEYWORDS: Defense and security, Goggles, Light sources, Visualization, Night vision, Light sources and illumination, Modulation transfer functions, Psychophysics, Night vision goggles, Standards development

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PROCEEDINGS ARTICLE | May 19, 2005

Detection of motion-defined form using night vision goggles

Proc. SPIE. 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications

KEYWORDS: Target detection, Image visualization, Visualization, Image processing, Photons, Night vision, Image quality, Image filtering, Neodymium, Night vision goggles

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PROCEEDINGS ARTICLE | September 8, 2004

Detection of motion-defined form under simulated night vision conditions

Proc. SPIE. 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications

KEYWORDS: Target detection, Signal to noise ratio, Image visualization, Visual process modeling, Visualization, Photons, Night vision, Software development, Motion models, Night vision goggles

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PROCEEDINGS ARTICLE | September 8, 2004

Validation of synthetic imagery for night vision devices

Proc. SPIE. 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications

KEYWORDS: Optical filters, Visual process modeling, Luminescence, Microchannel plates, Photons, Electrons, Night vision, Image filtering, Scintillation, Motion models

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PROCEEDINGS ARTICLE | September 8, 2003

Handling qualities comparison of panoramic night vision goggles and 46-deg. night vision goggles

Proc. SPIE. 5079, Helmet- and Head-Mounted Displays VIII: Technologies and Applications

KEYWORDS: Goggles, Safety, Visual process modeling, Visualization, Fourier transforms, Head, Objectives, Image intensifiers, Panoramic photography, Night vision goggles

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PROCEEDINGS ARTICLE | August 5, 2002

Sources of error in a helmet-mounted enhanced and synthetic vision system

Proc. SPIE. 4711, Helmet- and Head-Mounted Displays VII

KEYWORDS: Image fusion, Visualization, Sensors, Databases, Head, Image sensors, Navigation systems, Head-mounted displays, Heads up displays, Synthetic vision

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Head-up displays (HUDs) or helmet-mounted displays (HMDs) that provide pilots with world-referenced symbology or imagery require critical alignment and minimal time delays. In this paper, some aspects of system accuracy and latency will be discussed in the context of the Enhanced and Synthetic Vision System (ESVS), which is displayed on an HMD. In a joint program, the Canadian Department of National Defence (DND), CAE Inc., CMC Electronics, and the Flight Research Laboratory of the National Research Council of Canada integrated and flight-tested an enhanced and synthetic vision system. The goal of the program was to examine the potential of the ESVS concept for search and rescue operations. Despite obvious misalignments between the enhanced and synthetic images, the current system demonstrated the potential of ESVS systems with most of the test pilots able to navigate at low altitude in low visibility in an area without prepared navigation aids. The flight tests highlighted the system potential- the synthetic imagery provided continuous virtual VFR conditions, while the enhanced sensor generally provided more accurate spatial data and obstacle avoidance information. The ESVS program finished with the first helicopter flight test of both enhanced and synthetic visual displays presented on an HMD. While this milestone was successfully achieved, there is clearly a need for improved technology and further research to implement safe and effective ESVS systems. The system alignment was found to be a complex and perplexing issue. It was not possible to align the system within the precise tolerances generally accepted for HUD-equipped aircraft and, in fact, errors that were an order of magnitude greater than the recommendations were common. Errors built up in such a way that the system developers needed to develop an interim alignment solution and pilots were forced to deal with relatively large angular offsets. This was less than optimal, but proved to be sufficient for the tasks in the trials. However, it is clear that a rigorous alignment procedure is required to satisfy the strict requirements of an all-weather system that would support aggressive maneuvering and navigation in unknown terrain.

PROCEEDINGS ARTICLE | July 16, 2002

Hybrid enhanced and synthetic vision system architecture for rotorcraft operations

Proc. SPIE. 4713, Enhanced and Synthetic Vision 2002

KEYWORDS: Image fusion, Imaging systems, Cameras, Sensors, Databases, Head, Image sensors, Navigation systems, Image enhancement, Head-mounted displays

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PROCEEDINGS ARTICLE | June 23, 2000

Effects of field-of-view on pilot performance in night vision goggles flight trials: preliminary findings

Proc. SPIE. 4021, Helmet- and Head-Mounted Displays V

KEYWORDS: Goggles, Eye, Visual process modeling, Visualization, Lenses, Head, Analytical research, Global Positioning System, Night vision goggles, Information visualization

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PROCEEDINGS ARTICLE | June 23, 2000

Theoretical issues relevant to helmet-mounted display attitude symbology

Proc. SPIE. 4021, Helmet- and Head-Mounted Displays V

KEYWORDS: Nose, Visual process modeling, Visualization, Head, Analytical research, Head-mounted displays, Analog electronics, Heads up displays, Information visualization, Vestibular system

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PROCEEDINGS ARTICLE | July 12, 1999

Integration and test of a high-resolution helmet-mounted display

Proc. SPIE. 3689, Helmet- and Head-Mounted Displays IV

KEYWORDS: Displays, Electronics, Safety, Visualization, Imaging systems, Cameras, Sensors, Control systems, Head, Head-mounted displays

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PROCEEDINGS ARTICLE | August 11, 1998

In-flight evaluation of a fiber optic helmet-mounted display

Proc. SPIE. 3362, Helmet- and Head-Mounted Displays III

KEYWORDS: Eye, Fiber optics, Visualization, Imaging systems, Cameras, Sensors, Fourier transforms, Control systems, Head, Head-mounted displays

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PROCEEDINGS ARTICLE | July 1, 1997

In-flight evaluation of stereoscopic imagery in helicopter cockpits

Proc. SPIE. 3057, Cockpit Displays IV: Flat Panel Displays for Defense Applications

KEYWORDS: Eye, Safety, Visualization, Fourier transforms, Legal, Head, LCDs, 3D displays, Stereoscopic displays, Prototyping

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PROCEEDINGS ARTICLE | June 18, 1997

Helmet-mounted display research activity on the NRC Bell 205 airborne simulator

Proc. SPIE. 3058, Head-Mounted Displays II

KEYWORDS: Visualization, Imaging systems, Cameras, Sensors, Fourier transforms, Control systems, Head, Projection systems, Head-mounted displays, Chlorine

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