08737685 cites 31 patents.

Systems and methods are provided for detecting a movement of an object marked with a marker. The system includes a sensor configured to capture a first image of the marker and to capture a second image of the marker after the first image, each of the first and second images having pixels each having a visual intensity. A controller is configured to compare the first image and the second image by comparing the visual intensity of each of the pixels of the first image and the second image, determine an area of overlap between the first image and the second image based on the comparison, calculate a change in position of the marker in the second image relative to the marker in the first image based on the area of overlap, and detect the movement of the object based on the change in position of the marker.

Title
Systems and methods for detecting the movement of an object
Application Number
13/93548
Publication Number
8737685 (B2)
Application Date
April 25, 2011
Publication Date
May 27, 2014
Inventor
John White
Clearwater
FL, US
Manuel I Rodriguez
St. Petersburg
FL, US
Nicholas Lyn Sue
Seminole
FL, US
Karl Becker
Riverview
FL, US
Agent
Ingrassia Fisher & Lorenz P C
Assignee
Honeywell International
NJ, US
IPC
G06K 9/00
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