Automotive lighting systems are designed in order to provide the driver enough visibility, day and night, whatever the weather. In road lighting practice, an object of a fixed size in a simple scene is considered as visible if the contrast between its luminance and its background luminance is higher than a threshold contrast. This ratio is denoted VL (Visibility Level). We propose a framework i...

3D fingerprint recognition is an emerging technology in biometrics. However, current 3D fingerprint acquisition systems are usually with complex structure and high-cost and that has become the main obstacle for its popularization. In this work, we present a novel photometric method and an experimental setup for real-time 3D fingerprint reconstruction. The proposed system consists of seven LED l...

This paper presents a multiple camera system to determine the head pose of people in an indoor setting. Our approach extends current eye tracking techniques from a single camera system to a multiple camera system. The head pose of a person is determined by triangulating multiple facial features that are obtained in real-time from eye trackers. Our work is unique in that it allows us to observe ...

Filming or videotaping a work of art is traditionally done in either the gallery or studio setting. In either case, the work is taken off view and methodically surrounded by camera and lighting equipment. This process is time consuming, expensive and places the work at risk of being damaged by light, heat and/or toppling equipment. The tremendous investment and risk involved in this process req...

This paper proposes a method to detect calibration patterns for accurate camera calibration under complicated backgrounds and uneven lighting conditions of industrial fields. Required to measure object dimensions, the preprocessing of camera calibration must be able to extract calibration points from a calibration pattern. However, industrial fields for visual inspection rarely provide the prop...

Acquiring satisfactory and usable images with a camera involves ensuring that the film or digital sensor in a camera is properly exposed given a scene’s illumination strength and color. Several camera parameters affect this process. To properly handle variations of lighting strength a camera’s exposure can be adjusted by varying three parameters: exposure time, aperture size, and film or sensor...

We describe a home lighting robot that uses directional spotlights to create complex lighting scenes. The robot senses its visual environment using a panoramic camera and attempts to maintain its target goal state by adjusting the positions and intensities of its lights. Users can communicate desired changes in the lighting environment through speech and gesture (e.g., "Make it brighter over th...