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System, method and application for estimating pneumatic pressure state of vehicle tires using a handheld device

  • US 10,041,850 B2
  • Filed: 11/21/2016
  • Issued: 08/07/2018
  • Est. Priority Date: 11/08/2011
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a camera;

    an image acquisition module configured to acquire a video stream depicting a ground contact of a vehicle wheel using the camera, wherein the acquiring comprises;

    (i) iteratively, based on the video stream received from the camera, analyzing a frame of the video, to determine (a) an orientation between an axis of the vehicle wheel and a focal axis of the camera, (b) a center distance of the vehicle wheel in the frame, and (c) whether the frame depicts at least the ground contact, and(ii) when the orientation is substantially coaxial and the ground contact is substantially centered in an analyzed frame of the video, selecting the respective frame;

    an image analysis module configured to receive the selected frame from the image acquisition module and to analyze the selected frame, for estimating the pneumatic pressure state of a tire of the wheel in the selected frame; and

    a presentation module configured to present the estimated pneumatic pressure state of the tire via a display.

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