Resources Contact Us Home
Method and system for measuring the relief of an object

Image Number 4 for United States Patent #RE42899.

A method and a system for measuring the relief of an object are described herein. The system includes a grid projecting for projecting a grid, an image acquisition apparatus that includes a camera, and a computer. Providing a reference object having common elements with the object to measure, the method includes the steps of a) positioning the grid at three different known positions relative to the camera and the common elements; b) for each position of the grid, projecting the grid unto the reference object and, with the camera, taking an image of the reference object to yield three images having values for each pixel of the camera and c) computing the reference object phase for each pixel using the three reference object intensity values for the corresponding pixel. Steps a), b) and c) are repeated by replacing the reference object by the object to be measured. The difference of height between the object to be measured and the reference object for each pixel are then computed by subtracting the reference object phase and the object phase for the corresponding pixel.

  Recently Added Patents
Decentralized processing network
Event handling in an integrated execution environment
High-frequency power amplifier
Collaborative computing community role mapping system and method
Data paths using a first signal to capture data and a second signal to output data and methods for providing data
Method and mobile device for awareness of language ability
Diazeniumdiolated phosphorylcholine polymers for nitric oxide release
  Randomly Featured Patents
Pixel circuit
Rectangular chafing dish
Use of agents containing creatine, creatinine and/or their derivatives to fortify and improve the structure of keratinic fibers
Metal fitting
Memory management using migration for a run-time environment
Analytical method involving detection of an exciplex
Method and system for widening the synchronization range for a discrete multitone multicarrier single pilot tone system
TGF-.beta. pathway genes
Test fixtures for C4 solder-bump technology
Mounted body and method for manufacturing the same