| 摘要 |
An automated image recording and document generation system is disclosed tha t generates identity documents using image and text information that is input to the system using computer controlled video cameras. The image and text information is combined with other stored images, such as logs, signatures a nd seals, to produce official identity documents such as identity cards, driver s licenses and passports. Prior to use the system automatically enters a setup and calibration phase wherein a video camera images a backdrop having border s on the left and right vertical edges and the digitized video output is analyzed to adjust the camera zoom and to locate the center of the backdrop in front of which an individual will sit or stand to have their picture taken. The image of a person whose picture is taken is analyzed and is centered horizontally in a picture by adding or subtracting columns of background col or to the left or right side of the picture as needed. The system also adjusts the iris of the camera for brightness. After setup an individual whose pictu re is to be taken is positioned in front of the backdrop and their pictures is taken. The picture is analyzed to locate the edges of the face of the individual. The camera is tilted under control of the computer to roughly position the individuals face vertically in the picture. Thereafter, the system adds or subtracts scan lines of tire backdrop color above the face of the individual to finally position the face in the picture. The picture is also electronically adjusted for gamma and picture brightness.
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