Abstract: A method improves facial recognition using pairs of images acquired simultaneously of substantially different portions of faces. By using such pairs, the 3D pose and actual size of the faces can be determined, which enables better normalization and comparison with similar image pairs of identified faces stored in a database.

Abstract: The invention provides sensors and event monitoring to a cellular telephone to perform surveillance. Using audio and visual sensing capabilities, an environment can be monitored to detect significant surveillance events and to trigger surveillance alerts in response to the events, or to report current sensor information in response to an in-coming call.

Abstract: A surveillance system includes an event detector mounted in an environment, and an ultrasound generator coupled to the event detector. The ultrasound generator emits an ultrasound signal in response to the event detector detecting an event in the environment. A camera acquires a visual signal of the environment, and a microphone acquires the ultrasound signal, both of which are recorded on a storage media for subsequent searching and indexing. An event detector/ultrasound generator pair, can be purely mechanical or a battery operated electronic circuit.

Abstract: A high contrast front projection system includes a reflective screen configured to reflect light in a plurality of narrow-band frequencies, and a projector configured to emit light substantially in the narrow-band frequencies. The narrow-band frequencies are centered on red, green, and blue colors such that the reflective screen reflects about 90% of light at the plurality of narrow-band frequencies, and less than 10% of light at other frequencies.

Abstract: In a rear projection television, cathode ray tubes are mounted inside an enclosure so that each cathode ray tube projects output images onto a rear projection screen using a corresponding electron beam. Calibration images are generated for each cathode ray tube. A camera, also mounted inside the enclosure, acquires an input image of each calibration image. A distortion in each input image is measured, and the output images of the cathode ray tubes are corrected by adjusting the signals controlling the corresponding electron beams according to the distortion.

Abstract: A crib shield system includes one or more panels to be used with crib. The panels are formed, at least in part, of a mesh-type material (e.g., an integrated padded mesh material) that includes openings too small to permit an infant to insert a finger or toe therethrough. Further, the integrated padded mesh material may be used with one or more other apparatus (e.g., a blanket, a toy, etc.).

Abstract: A canopy for use with a ventilator slot extending through a window frame has pressure differential responsive flow control means arranged to progressively close the flow passage through the canopy as the pressure differential increases, thus preventing draughts. The canopy has a body with an inlet and an outlet and a bowed wall therebetween. A normally straight baffle strip is attached to the center of the wall and there are non-aligned apertures in the wall and the baffle respectively. When the pressure differential between the inlet and outlet is low, the baffle is well-spaced from the wall but as the pressure differential increases the baffle is bowed progressively towards the wall against the inherent bias of the strip to progressively close the flow path through the apertures.

Abstract: A canopy for use with a ventilator slot extending through a window frame has pressure differential responsive flow control means arranged to progressively close the flow passage through the canopy as the pressure differential increases, thus preventing draughts. The canopy has a body with an inlet and an outlet and a bowed wall therebetween. A normally straight baffle strip is attached to the center of the wall and there are non-aligned apertures in the wall and the baffle respectively. When the pressure differential between the inlet and outlet is low, the baffle is well-spaced from the wall but as the pressure differential increases the baffle is bowed progressively towards the wall against the inherent bias of the strip to progressively close the flow path through the apertures.