Abstract: An imaging system using a color shutter receives signals indicative of color information in a plurality of planes together with infrared information and a signal indicative of the infrared radiation alone. The infrared radiation signal may be subtracted from the signals associated with the color planes to develop signals free of infrared radiation effects for each of the desired color planes. In addition an infrared signal is available which may have useful applications in some situations. In this way, color information color bands may be obtained without the need an infrared filter and infrared information is retained for use in other applications if desired. In addition infrared and dark current information may be derived that can be used for dark current correction.

Abstract: A method and apparatus pertains to aligning and/or stitching together several 3-D fragments. The steps comprise determining at least two fragments having a corresponding set of alignment marks and aligning at least two fragments with respect to a coordinate system using the corresponding set of alignment marks in the respective fragments.

Abstract: A method and apparatus pertains to aligning and/or stitching together several 3-D fragments. The steps comprise determining at least two fragments having a corresponding set of alignment marks and aligning at least two fragments with respect to a coordinate system using the corresponding set of alignment marks in the respective fragments.

Abstract: A method and apparatus pertains to aligning and/or stitching together several 3-D fragments. The steps comprise determining at least two fragments having a corresponding set of alignment marks and aligning at least two fragments with respect to a coordinate system using the corresponding set of alignment marks in the respective fragments.

Abstract: An anonymity system including a cryptographic device. The cryptographic device of the anonymity system is adapted to initially determine whether a response to an incoming electronic message is requested. If so, an address of the anonymity system is encrypted with a key. In one embodiment, the key may be a public key of a system targeted to receive an outgoing electronic message from the anonymity system inclusive of data contained in the incoming electronic message. The encrypted address is placed into an outgoing electronic message before re-routing to the target system to allow the target system to re-route the response back to the anonymity system.

Abstract: A method and apparatus to capture stereoscopic images is disclosed. A light source having a diffracting device to project a structured light unto a target object is provided. A plurality of imaging devices to capture images of the target object is provided.

Abstract: A infrared pixel sensor comprising a pixel circuit and a composite infrared pass filter comprising a plurality of filters, wherein each filter belonging to the plurality of filters are substantially transparent to infrared radiation and have a visible pass spectrum so that the composite infrared pass filter is substantially opaque to visible light. Signals from infrared pixel sensors are subtracted from color pixel sensors to correct for infrared radiation in the image signal without the need for an infrared blocking filter.

Abstract: A method and apparatus for calibrating an imaging device having an image sensor is disclosed. A deviation of the image sensor with respect to a chosen coordinate system is determined. A roll of the image sensor with respect to the chosen coordinate system is determined. A pin hole coordinate with respect to the chosen coordinate system is determined.

Abstract: A method and apparatus pertains to aligning and/or stitching together several 3-D fragments. The steps comprise determining at least two fragments having a corresponding set of alignment marks and aligning at least two fragments with respect to a coordinate system using the corresponding set of alignment marks in the respective fragments.

Abstract: A method and apparatus for extracting three-dimensional (3-D) data from a target object is disclosed. A plurality of markers are formed on the object. A plurality of images are captured of the object. A first point is designated from a marker from one of the images and a line equation corresponding to the first point is determined. A second point in a marker in another image corresponding to the first point is determined and a second line equation corresponding to the second point is determined. The intersection of the two line equations is determined.

Abstract: A light sensing device including at least one light sensor is provided. The at least one light sensor is configured to be exposed to a light image. In response to the light image, the at least one light sensor is configured to generate a first signal. The light sensing device further includes a measuring device coupled to the at least one light sensor. The light sensing device also includes a sampling generator configured to generate a sampling signal to the measuring device. The sampling signal is inhibited when the first signal is lesser than or equal to a predetermined value. Upon inhibition of the sampling signal, the measuring device retains a measure of the first signal.