Method and apparatus for determining the coordinates of an object
Abstract
A method and apparatus is described for determining the coordinates on the surface of an object which is illuminated by a beam having pixels which have been modulated according to predetermined mathematical relationships with pixel position within the modulator. The reflected illumination is registered by an image sensor at a known location which registers the intensity of the pixels as received. Computations on the intensity, which relate the pixel intensities received to the pixel intensities transmitted at the modulator, yield the proportional loss of intensity and planar position of the originating pixels. The proportional loss and position information can then be utilized within triangulation equations to resolve the coordinates of associated surface locations on the object.
 Inventors:

 Los Alamos, NM
 Santa Fe, NM
 Issue Date:
 Research Org.:
 Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
 OSTI Identifier:
 874982
 Patent Number(s):
 6504605
 Assignee:
 The Regents of the University of California (Oakland, CA)
 Patent Classifications (CPCs):

G  PHYSICS G01  MEASURING G01B  MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
 DOE Contract Number:
 W7405ENG36
 Resource Type:
 Patent
 Country of Publication:
 United States
 Language:
 English
 Subject:
 method; apparatus; determining; coordinates; described; surface; illuminated; beam; pixels; modulated; predetermined; mathematical; relationships; pixel; position; modulator; reflected; illumination; registered; image; sensor; location; registers; intensity; received; computations; relate; intensities; transmitted; yield; proportional; loss; planar; originating; information; utilized; triangulation; equations; resolve; associated; locations; /356/382/702/
Citation Formats
Pedersen, Paul S, and Sebring, Robert. Method and apparatus for determining the coordinates of an object. United States: N. p., 2003.
Web.
Pedersen, Paul S, & Sebring, Robert. Method and apparatus for determining the coordinates of an object. United States.
Pedersen, Paul S, and Sebring, Robert. Wed .
"Method and apparatus for determining the coordinates of an object". United States. https://www.osti.gov/servlets/purl/874982.
@article{osti_874982,
title = {Method and apparatus for determining the coordinates of an object},
author = {Pedersen, Paul S and Sebring, Robert},
abstractNote = {A method and apparatus is described for determining the coordinates on the surface of an object which is illuminated by a beam having pixels which have been modulated according to predetermined mathematical relationships with pixel position within the modulator. The reflected illumination is registered by an image sensor at a known location which registers the intensity of the pixels as received. Computations on the intensity, which relate the pixel intensities received to the pixel intensities transmitted at the modulator, yield the proportional loss of intensity and planar position of the originating pixels. The proportional loss and position information can then be utilized within triangulation equations to resolve the coordinates of associated surface locations on the object.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}