skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method to smooth photometric variations across multi-projector displays

Abstract

A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.

Inventors:
;
Issue Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531510
Patent Number(s):
7,038,727
Application Number:
10/283,991
Assignee:
The University of Chicago (Chicago, IL)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2002-10-30
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 97 MATHEMATICS AND COMPUTING

Citation Formats

Majumder, Aditi, and Stevens, Rick L. Method to smooth photometric variations across multi-projector displays. United States: N. p., 2006. Web.
Majumder, Aditi, & Stevens, Rick L. Method to smooth photometric variations across multi-projector displays. United States.
Majumder, Aditi, and Stevens, Rick L. Tue . "Method to smooth photometric variations across multi-projector displays". United States. https://www.osti.gov/servlets/purl/1531510.
@article{osti_1531510,
title = {Method to smooth photometric variations across multi-projector displays},
author = {Majumder, Aditi and Stevens, Rick L.},
abstractNote = {A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {5}
}

Patent:

Save / Share:

Works referenced in this record:

Optical blending for multi-projector display wall systems
patent, May 2003


Modular display system
patent, August 2003


Calibrating projection displays
patent, June 2002


Super-resolution display
patent, September 2002


Method and apparatus for providing a seamless tiled display
patent, April 2002


Method and apparatus for calibrating a tiled display
patent, October 2001


Multi-projection image display device
patent, February 2004


Adjustable multiple image display smoothing method and apparatus
patent, August 1992


Electro-optical display apparatus
patent, April 2001


Method and apparatus for adjusting multiple projected raster images
patent, September 2000


Mutiscreen display apparatus
patent, March 1995


    Works referencing / citing this record:

    Multi-projector system and method
    patent, July 2013


    Mesh for rendering an image frame
    patent, December 2010


    System and method for displaying remote content through multiple projectors
    patent, January 2013


    Video frame synchronization for a federation of projectors using camera feedback
    patent, December 2015


    Blend maps for rendering an image frame
    patent, March 2011


    Correcting row and column shifts in a calibration matrix for a projection system
    patent, September 2012


    System and method for generating scale maps
    patent, September 2010


    System and method for projecting multiple image streams
    patent, September 2015


    Systems and methods using a slideshow generator
    patent, January 2016


    Photometric and radiometric calibration using optical feedback
    patent, April 2016


    Image processing device
    patent, May 2014


    Processing multiple regions of an image in a graphics display system
    patent, January 2013


    Ambient light absorbing screen
    patent, March 2009


    Optical and electrical blending of display images
    patent, March 2008


    System and method for color and intensity calibrating of a display system for practical usage
    patent, November 2016


    System and method for determining a gamma curve of a display device
    patent, July 2011


    Calibrating a projection system
    patent, October 2011