×

Compact interactive tabletop with projection-vision

  • US 10,026,177 B2
  • Filed: 12/11/2013
  • Issued: 07/17/2018
  • Est. Priority Date: 02/28/2006
  • Status: Active Grant
First Claim
Patent Images

1. A system comprising:

  • at least one processor; and

    memory encoding computer executable instructions that, when executed by the at least one processor, perform acts comprising;

    causing to sense an object over an interactive surface, the interactive surface being illuminated with an infrared source;

    causing to track a shadow of the object appearing on the interactive surface based on the interactive surface reflecting infrared light when the object is moving; and

    enabling touch detection by examining the shadow of the object to calculate a height of the object over the interactive surface when the object and the shadow of the object are matched, wherein the height serves as a signal for cursor control to determine if the object is hovering over or touching the interactive surface, based on an analysis of the shadow of the object in relation to a binarized image of the object.

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