System, method and application for estimating pneumatic pressure state of vehicle tires using a handheld device
First Claim
Patent Images
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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Abstract
System method and computer operable application for estimating pneumatic pressure in tires of vehicles, using a handheld device having at least one camera installed therein that allow acquiring an image of a wheel of a vehicle, using the camera of the handheld device, analyzing the acquired image for estimating value of at least one parameter of the tire of the wheel in the image, where the parameter is related to pneumatic pressure of the tire, estimating pneumatic pressure state of the respective tire by using the parameter and presenting an indication of the estimated pneumatic pressure state.
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Citations
19 Claims
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1. A system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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acquiring a video stream depicting a ground contact of a vehicle wheel, using at least one camera, the acquiring comprising; (i) iteratively, based on the video stream received from the at least one 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 at least one 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; analyzing the selected frame for estimating value of at least one parameter of the tire related to pneumatic pressure thereof; estimating pneumatic pressure state of the tire by using the parameter; and presenting an indication of the estimated pneumatic pressure state, using a display. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer operable application comprising:
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an image acquisition module configured to acquire a video stream depicting a ground contact of a vehicle wheel, using a 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 said 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 analyze the selected frame, for estimating the pneumatic pressure state of a tire in the selected frame; and a presentation module for presenting the estimated pneumatic pressure state of the tire via a display.
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Specification