Stuart Nightenhelser

Forensic scientific analysis of motor vehicle collisions involving automobiles, trucks, commercial vehicles, farm equipment, motorcycles, bicycles and pedestrians

Railroad grade crossing incidents, train-train collisions and incidents in railroad yards, including analysis of train lighting, locomotive event recorder output, train braking and stopping distance, and sight triangle obstructions

Incidents involving lighting and reduced light, as well as reflectance and retro-reflectance of scene materials

Human factors areas including human perception and reaction; human visual acuity and depth perception throughout the visual field; color vision and night vision; visibility; analysis of object size and brightness versus the viewing background, and their relationship to visibility; and glare effects

Effects of environment and atmosphere on visibility, such as low light, fog, smoke, glare, reduced brightness contrast, visual clutter, and visual cues such as relative motion, repetitive motion, changes in lighting, and line of sight measurement

Incidents involving physics and mechanics of motion

Photogrammetry, photographic and video image analysis and measurement

Program management

Product design, development and test

Machine vision and imaging system development

Construction of high-accuracy 3D scene data from stereo image pairs

Development and coding of autonomous algorithms for detection, classification and identification of scene objects and features using multi-spectral sensor data

Computer modeling and simulations

LADAR/LIDAR system specification and development

Mathematical characterization of image contrast and object detection thresholds under differing circumstances of lighting, weather conditions, surface wetness, and seasonal and diurnal changes in scene spectral content

Accident Recon./Invest.