Vehicle vision system

  • US 7,567,291 B2
  • Filed: 09/27/2002
  • Issued: 07/28/2009
  • Est. Priority Date: 12/31/1997
  • Status: Active Grant
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First Claim
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1. A vehicle viewing system for displaying an image of a scene to a vehicle operator, the system comprising:

  • a camera system to generate a signal corresponding to the scene by integrating light from the scene incident on pixel cells, the pixel cells having a variable integration time that sets the length of time during which the pixel cells integrate light despite being exposed to light over a longer period comprising;

    an optical sensor operative to produce a digital signal corresponding to the scene, wherein the digital signal comprising a magnitude and a range for each pixel cell, the range indicative of the integration period used by the pixel cell; and

    a lens system to focus the image of the scene onto the optical sensor;

    a display system to present the image of the scene; and

    a processor system in communication with the camera system and the display system, the processor system operable to determine the camera system integration time based on brightness levels in the scene.

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