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Motion detection system

  • US 5,396,284 A
  • Filed: 08/20/1993
  • Issued: 03/07/1995
  • Est. Priority Date: 08/20/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for detecting motion within video images comprising:

  • (a) statistical means for deriving a first plurality of statistical values including a first value representative of a first portion of a video image, and a second value representative of a second portion of the video image, said second portion of the video image at least partially overlapping said first portion;

    (b) storage means for storing a second plurality of statistical values derived from a previous video image;

    (c) comparison means for comparing spatially corresponding statistical values of said first and second pluralities of statistical values and for signaling a difference determined between any of the spatially corresponding statistical values; and

    (d) motion indicating means responsive to the difference signal for indicating the detection of motion.

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