Imperx Adds Custom Flat-Field Correction to Lynx Camera Capabilities


9 May 2006 (Boca Raton, Fla.) -- Vignetting (falloff of image brightness with distance from the frame's center) and pixel-to-pixel CCD-sensitivity variations can be major problems for machine-vision systems used in inspection and motion-control applications. While Imperx' Lynx programmable cameras include software correction for these variations based on an array of calibration coefficients measured during final product testing at their factory, these coefficients cannot fully compensate for changes in vignetting when different lenses are used or pixel sensitivities change with age.

To eliminate this problem, Imperx has introduced the Imperx FFC Processor utility as a free software upgrade for their IPX-2M30, IPX-2M30H, IPX-4M15, and IPX-11M5 series cameras. The utility, which runs on the imaging system's host computer, guides the user through a four-step calibration process identical to what the factory's test department uses to field-correct cameras during final test. The result is a flat-field correction (FFC) file containing the correction factors the camera needs to perform on-board flat-field correction while acquiring images. The final steps load the file into the camera and turn on the FFC feature. The camera then provides images identical to what a hypothetical perfect camera system - with no vignetting or sensitivity variations - would provide.

The user can create a library of FFC files for each lens/aperture setting/illumination combination to be used in their application, and automatically download the appropriate corrections whenever the camera configuration changes.

About Imperx Imperx, Inc. designs, develops and manufactures advanced, state-of-the-art imaging products used in the machine vision, medical, defense, surveillance and astronomy markets - wherever there is a need to capture high-resolution digital color or black/white images for both still and full-rate motion processing.

Imperx' product portfolio is focused in four core areas: cameras, frame grabbers, adapters and repeaters. The LYNX mega-pixel camera line features rich, high resolution, high speed, color and monochrome image-capture devices, and offers unprecedented performance for today's demanding machine vision and surveillance applications. The VCE series of analog frame grabbers have achieved number-one market share. Framelink(TM) digital frame grabbers for Camera Link® cameras are the only products of their kind on the market! The Adapt-A-Link(TM) series of adapters allows customers to leverage their investment in existing cameras or frame grabbers with dissimilar interfaces by performing the necessary adaptation. The Imperx series of Adapt-A-Link(TM) repeaters overcomes distance limits imposed by the Camera Link® and LVDS standards, providing virtually unlimited physical reach for distributed image-sensing systems.

For more information, visit the Imperx, Inc. website at www.imperx.com.

Framelink(TM) and Adapt-A-Link(TM) are registered trademarks of Imperx, Inc., Boca Raton, Fla.

Camera Link® is a registered trademark of the Automated Imaging Association, Ann Arbor, Mich.

Editorial Contact: James Liolin
Lion Advertising
550 Mamaroneck Avenue
Harrison, NY 10528
ph. 914-670-0138
fax. 914-670-0596
email: jliolin@lionadv.com

Company Contact: Petko Dinev, Ph.D.
President, Chief Executive Officer
Imperx, Inc.
6421 Congress Avenue
Suite 204
Boca Raton, Fla. 33487 U.S.A.
Toll free: 1-866-849-1662
Phone: 1-561-989-0006
Fax: 1-561-989-0045
email: info@imperx.com
URL: www.imperx.com

All Topics