×

Method for generally continuously calibrating an interactive input system

  • US 9,360,966 B2
  • Filed: 03/15/2013
  • Issued: 06/07/2016
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for generally continuously calibrating an interactive input system, the interactive input system comprising at least two imaging devices having fields of view encompassing a region of interest, at least one of said imaging devices calibrated using a projection matrix having an associated quality metric, the method comprising:

  • storing a plurality of computed locations generated in response to each pointer brought into said region of interest;

    when said plurality of computed locations satisfy at least one condition, estimating new values for parameters of the projection matrix based on a plurality of computed locations of at least one pointer brought into proximity with the region of interest;

    calculating a new quality metric using the new parameter values; and

    if the new quality metric is more accurate than the existing quality metric, updating the projection matrix using the new parameter values.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×