Abstract: One aspect of the invention comprises a method of embedding data in a code readable by machine from a visible light scan of the code. The method comprises pre-printing a two dimensional array of pixels on a substrate. The pixels include at least one calibration pixel, and each have color values. The method selectively alters at least a subset of the pixels by using laser radiation to alter color saturation of the color values of the pixels in the subset relative to the calibration pixel according to digital data values of the code to be embedded in the subset of pixels. This method has been adapted to embed personalized information in pre-printed graphic elements on ID cards.

Abstract: We provide techniques for uniquely linking security elements in identification documents. In one implementation we provide a digital watermark embedded on, and a smartcard chip embedded in, an identification document. The smart card chip includes a hash or a reduced-bit representation of the digital watermark, while the digital watermark includes a hash of information stored on the smartcard chip. In another implementation we cross-correlate encryption keys carried by various machine-readable features on an identification document. In still another implementation, we embed biometric information, which is stored in smartcard electronic circuitry, with a digital watermark. In one case the watermark is reversible, so that it can be removed to yield unmarked biometric information. In another case the watermark is fragile, to reveal whether the biometric information has been subjected to a transformation. In yet another implementation, we provide a jurisdictional indicator on an identification document.

Abstract: A capture station for creating identification documents comprises a housing including a camera and lighting device, a base, and at least one leg extending from the base. The housing is mounted to the leg to enable height adjustment of the camera. One configuration of the capture station has two substantially rigid and parallel legs with the housing mounted between the legs. Configurations of the capture station can include a processor, such a CPU or embedded controller, enabling ID document data capture functions to be executed within the capture station, and to be controlled via a remote computer via a network connection. In one embodiment, the processor is housed in the base and communicates with the camera via wiring routed through the leg. Peripherals used in capture functions, such as a fingerprint reader, signature pad, display, etc., may be mounted to the leg via clamps, or a plug in receptacle with power and communication wiring provided in the leg.

Abstract: An identification document is provided comprising a printable layer, a computer readable data storage element, and a computer readable calibration element. The computer readable data storage element is formed on the printable layer and comprises a plurality of pixels, wherein each pixel has one of a predetermined plurality of colors. The computer readable calibration element is formed on the printable layer and comprises a plurality of pixels and includes information enabling a determination of the pixel size in the computer readable data storage element and also a determination of at least a portion of the predetermined plurality of colors.

Abstract: A lighting device for illuminating an object from a light source includes a housing having an inner surface portions of which are diffusely reflective and an aperture disposed in the housing aligned with the light source. The lighting device further includes a diffuser positioned between the light source and the object and a reflector disposed adjacent the aperture between the light source and the diffuser.