Abstract:
The face of a human subject (16) is alternately illuminated by first and second sources of active illumination (28, 30) disposed above and below a video camera (32) that captures images of the subject's face. Glare due to reflection of the active illumination from eyeglasses (24) worn by the subject (16) shifts up or down from one image to the next due to the different locations of the first and second sources (28, 30). Eye detection and tracking routines (50, 52) ignore images in which the eye (22) is occluded by eyeglass glare so that the glare does not interfere with the performance of the routines.
Abstract:
A system and method are provided for actively illuminating and monitoring a subject (26), such as a driver of a vehicle (10). The system includes a video imaging camera (32) orientated to generate images of the subject eye(s) (28). The system also includes first and second light sources (20 and 30) offset from each other and operable to illuminate the subject. The system further includes a controller (34) for controlling illumination of the first and second light sources (20 and 30) such that when the imaging camera (32) detects sufficient glare (74), the controller (34) controls the first and second light sources (20 and 30) to minimize the glare (74). This is achieved by turning off the illuminating source (20 or 30) causing the glare (74).
Abstract:
A display device (10) built on an insulating substrate (12) suitable for processing on both sides that includes a plurality of conductive through-holes (20) through the substrate (12). One side is reserved for a high-density array (14) of organic light emitting diodes (OLEDs). The OLEDs can be high-density because the electrical connections for the OLEDs are on the other side of the substrate (12) and interconnected via the conductive through-holes (20). The cathode sides (26) of the OLEDs are interconnected by a light transmitting layer (28) overlaying the cathode side that is electrical conductive. On the side of the substrate (12) opposite the OLEDs is an array of anode contacts (32) configured to form an electrical contact with a driver circuit (34).
Abstract:
A display system (10) for displaying a seamless mosaic of a plurality of images projected by a plurality of projectors (12) by aligning the images projected so the mosaic appears seamless. The display system (10) includes a display (16) defining a display surface (14), a first projector (12A), and a second projector (12B) configured to project onto distinct areas that partially overlap. A light detector (30) located adjacent to the display surface (14) detects light projected onto the overlap area. Image signals received by the projectors (12) are adjusted to eliminate the overlap and or balance the brightness of each projected image so the composite image appears to be a seamless mosaic.
Abstract:
A display device having integral photo-sensors for touch sensing is used to detect and mitigate the effects of veiling glare that obscures information being conveyed by the display device. The photo-sensors are periodically sampled to identify optically saturated regions of the display device. If the saturated regions of the display device are being used to convey relevant information, one or more counter-measures are initiated to mitigate the effects of the glare. The counter-measures may include: increasing the display brightness at least in the identified glare region, tilting the display or its cover lens away from estimated direction of the glare source, re-sizing or re-formatting the displayed information, using an alternate display device to convey the information, and presenting the information with a different layer of a multi-layer display.
Abstract:
A system and method are provided for actively illuminating and monitoring a subject (26), such as a driver of a vehicle (10). The system includes a video imaging camera (32) orientated to generate images of the subject eye(s) (28). The system also includes first and second light sources (20 and 30) offset from each other and operable to illuminate the subject. The system further includes a controller (34) for controlling illumination of the first and second light sources (20 and 30) such that when the imaging camera (32) detects sufficient glare (74), the controller (34) controls the first and second light sources (20 and 30) to minimize the glare (74). This is achieved by turning off the illuminating source (20 or 30) causing the glare (74).
Abstract:
An automotive occupant position restraint apparatus (22) senses a position of an occupant (10, 16) of a motor vehicle (14). An optical energy source (30) emits optical energy that is substantially limited to a first range of wavelengths that corresponds to an atmospheric absorption peak. An optical energy receiver (32) receives the optical energy emitted by the optical energy source after the optical energy has been reflected within a passenger compartment (42) of the motor vehicle. A range of wavelengths that the receiver is operable to receive is substantially limited to a second range of wavelengths that corresponds to the atmospheric absorption peak.