PHASE-ERROR COMPENSATION METHOD AND DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 24, 2017
app pub date -
Sep 2, 2015
filing date -
Sep 2, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A phase-error compensation method and device, comprising: utilizing a phase-shifting-profilometry measuring system to obtain fringe sequence charts; based on Hilbert transform, transforming the fringe sequence charts from a space domain to a Hilbert transform domain; based on least squares phase shift method, solving the phases of the fringe sequence charts in the space domain and the Hilbert transform domain respectively, and obtaining a phase chart in the space domain and a phase chart in the Hilbert transform domain; averaging the phase chart in the space domain and the phase chart in the Hilbert transform domain to obtain an average phase, and utilizing the average phase to perform phase-error compensation. The invention possesses a self-compensation mechanism, does not need any auxiliary condition, and thus meets the requirements of high-speed, high-precision and high-universality 3D digital imaging and measuring based on the phase shifting profilometry.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully