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Corrected projection perspective distortion

  • US 10,158,834 B2
  • Filed: 08/30/2016
  • Issued: 12/18/2018
  • Est. Priority Date: 08/30/2016
  • Status: Active Grant
First Claim
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1. A system for projecting an image, the system comprising:

  • a projector operable for rendering a test pattern over each of two dimensions of a projection surface, the rendered test pattern being one or more of a two dimensional (2D) barcode, Quick Response (QR) code, and a Han Xin code;

    a scanner operable, upon the rendered test pattern conforming to a perspective related specification for a spatial configuration of barcode data disposed over the two dimensions, for reading data encoded therewith;

    a sensor operable for detecting an angle of a projection in each of the two dimensions corresponding to the rendering of the test pattern, relative to a line orthogonal to a plane corresponding to a portion of the projection surface; and

    a processor operable for computing a spatial transformation over the rendered test pattern, upon a nonconformity thereof to the specification, the computed transformation comprising a perspective adjustment related to the angle of the projection, and for controlling the projector based on the computed transformation,wherein the processor is operable, further, in relation to the controlling of the projector based on the computed transformation, for one or more of causing, commanding, configuring, or programming the projector to render the test pattern,wherein the sensor is operable, further, for repeating the detecting of the angle of the projection, andwherein the processor is operable, further and heuristically, for repeating the computing of the transformation, and the controlling of the projector based on the computed transformation.

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