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US 6,668,661 B2Granted
Pressure distribution image analysis process
AssigneeRam Consulting, Inc.
InventorCristin Rider
Life of this patent
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Abstract
A method of analyzing force on a surface is described including providing a pressure-sensitive medium, applying the force to the medium, determining any change in the medium as a result of the applied force, correlating the change in the medium with a pressure value, and analyzing the force value. The pressure-sensitive film may be scanned, each shade or color on the film assigned a pixel value corresponding with pressure values, and the total pixel area values measured to determine pressure characteristics, such as average pressure or total pressure area.
Claims13
A method of calculating a force comprising the steps of:
- providing a pressure-sensitive color-changing film;
- applying the force to the film;
- measuring temperature and humidity ambient to the film;
- determining a visual color change in the film as a result of the applied
- obtaining a pressure value corresponding to the visual color change by correlating the visual color change in the film with the pressure value, including factoring in effects of the measured ambient temperature and humidity on the change in the film;
- analyzing the pressure value;
- and
- calculating an amount of the force applied to the film based on the analyzed pressure value.
5 more elements
Dependencies are inferred from the claim text.