Moisture sensor and windshield fog detector

  • US 6,097,024 A
  • Filed: 07/02/1999
  • Issued: 08/01/2000
  • Est. Priority Date: 09/16/1997
  • Status: Expired due to Term
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First Claim
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1. A system for detecting moisture on a surface, comprising:

  • an array image sensor;

    an optical system to image a portion of the surface onto the array image sensor; and

    a processing system coupled to the array image sensor, the processing system analyzing images from the array image sensor to detect moisture, wherein the processing system alternately processes the images from different subwindows of the array image sensor, the subwindows being smaller than the array image sensor.

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