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Flow meter using a dynamic background image

  • US 9,759,343 B2
  • Filed: 11/11/2015
  • Issued: 09/12/2017
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
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1. A method for adjusting a flow rate of a fluid line, the method comprising:

  • capturing an image of a drip chamber using an image sensor;

    comparing the image of a drip chamber with a dynamic background image wherein the dynamic background image contains a pattern having a plurality of lines; and

    adjusting a flow rate of fluid flowing through the fluid line in accordance with the comparison between the image of the drip chamber and the dynamic background image.

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