Stephen B Webb

US Patent:

8059916, Nov 15, 2011

Filed:

Jun 24, 2010

Appl. No.:

12/822281

Inventors:

Christopher O. Jaynes - Denver CO, US
Stephen B. Webb - Denver CO, US

Assignee:

Mersive Technologies, Inc. - Denver CO

International Classification:

G06K 9/32

US Classification:

382293

Abstract:

A method of calibrating a multi-projector image display system is provided. According to the method, non-parametric calibration data for the display system is recovered and used to generate a non-parametric model of the display system. Local parametric models relating to the display surface of the projection screen are generated and are compared with data points defined by the non-parametric calibration data to identify one or more local errors in the non-parametric calibration data. The local errors in the non-parametric calibration data are converted to data points defined at least in part by the local parametric models and the projectors are operated to project an image on the image projection screen by utilizing a hybrid calibration model comprising data points taken from the non-parametric model and data points taken from one or more local parametric models. Additional embodiments are disclosed and claimed.

US Patent:

8606004, Dec 10, 2013

Filed:

Jul 15, 2011

Appl. No.:

13/184282

Inventors:

Christopher O. Jaynes - Denver CO, US
Thomson Comer - Denver CO, US
Stephen B. Webb - Denver CO, US
Michael Tolliver - Denver CO, US

Assignee:

Mersive Technologies, Inc. - Denver CO

International Classification:

G06K 9/00

US Classification:

382167, 382162, 358504, 358518

Abstract:

A system for automatic color matching of multiple displays in a multi-display system. A sensor observes the output energy of each of the displays in a multi-display system and measures the difference in the color responses for a given input color. This difference is used to derive a modification function that is applied to each display. The displays are modified accordingly, and then the color is displayed again. This process is repeated until the measured values from each of the displays are within a minimum measurement error tolerance, so that the differences in displayed colors observed among the displays are minimized.

US Patent:

20090262260, Oct 22, 2009

Filed:

Apr 17, 2009

Appl. No.:

12/425896

Inventors:

Christopher O. Jaynes - Denver CO, US
Stephen B. Webb - Lexington KY, US

Assignee:

MERSIVE TECHNOLOGIES, INC. - Lexington KY

International Classification:

H04N 9/31

US Classification:

348744, 348E09025

Abstract:

A display system includes a first and second display source configured to generate first and second images that overlap to form a multiple-display image. Each illuminated point within an overlap region includes a first image pixel contribution generated by the first display source and a second image pixel contribution generated by the second display source. The display system is programmed to select one or more dithering pixels within the overlap region and apply a blending function that alters one or more radiometric parameters of pixels within the overlap region. The blending function includes a deterministic blending function that alters contribution of non-dithering pixels based at least in part on the location of the non-dithering pixel within the overlap region. The blending function also includes a dithering component that alters contributions of dithering pixels within the overlap region of multiple-display image based at least in part on a modification value X.

US Patent:

20110134332, Jun 9, 2011

Filed:

Nov 30, 2010

Appl. No.:

12/956572

Inventors:

Christopher O. Jaynes - Denver CO, US
Thomson Comer - Denver CO, US
Stephen B. Webb - Denver CO, US
Michael Tolliver - Denver CO, US

International Classification:

H04N 9/64
G09G 5/02

US Classification:

348708, 345590, 348E09025, 348E09037

Abstract:

A method of generating a display from a plurality of color image display sources such as a projector or a video monitor. The non-linear color response is first determined for each projector/monitor by using a color camera or other sensor to capture a displayed image. Each of the display sources is then linearized using the inverse of the respective non-linear color response. A common reachable gamut is derived in an observed color space for each of the sources. A transform is determined that maps an observed gamut to a target device-specific color space for each of the display sources. The respective transform is then applied to color values input to each of the display sources to make more similar the observed color response of each of the displays.

US Patent:

20140104304, Apr 17, 2014

Filed:

Dec 9, 2013

Appl. No.:

14/100986

Inventors:

- Denver CO, US
Thomson Comer - Denver CO, US
Stephen B. Webb - Denver CO, US
Michael Tolliver - Denver CO, US

Assignee:

Mersive Technologies, Inc. - Denver CO

International Classification:

G09G 5/02
G09G 5/12

US Classification:

345600

Abstract:

A system for automatic color matching of multiple displays in a multi-display system. A sensor observes the output energy of each of the displays in a multi-display system and measures the difference in the color responses for a given input color. This difference is used to derive a modification function that is applied to each display. The displays are modified accordingly, and then the color is displayed again. This process is repeated until the measured values from each of the displays are within a minimum measurement error tolerance, so that the differences in displayed colors observed among the displays are minimized.