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Method and apparatus for indicating a field of view for a document camera

  • US 6,463,220 B1
  • Filed: 11/08/2000
  • Issued: 10/08/2002
  • Est. Priority Date: 11/08/2000
  • Status: Expired due to Term
First Claim
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1. A document camera, comprising:

  • a lens with a zoom mechanism;

    a photo detector for capturing a first electronic image of a document imaged by the lens;

    an image processor for processing the first electronic image of the document captured by the photo detector;

    the image processor determining a capture zone within the first electronic image of the document;

    the capture zone identifying one or more complete zones within the first electronic image of the document imaged by the lens;

    a projector for projecting a field of view indicator onto the document imaged by the tens that identifies the capture zone;

    a controller for controlling the zoom mechanism to capture a second electronic image of the capture zone identified by the field of view indicator;

    the second electronic image recording the capture zone with a greater resolution than the first electronic image.

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