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What is Display Calibration | Information Base Articles | Tech Tips | Poynton's Vector

 

Why Viewing Angle is Important
Darrell Bird
02/01/12

 A meter’s viewing angle is not really something we need to be concerned about when dealing with transmissive illuminate displays, like flat screen TVs, since the meter is typically either in direct contact with the screen or very near it.  However, when we’re calibrating projectors, knowing the viewing angle of your meter is critical.

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Closed Loop Calibration
Joshua Quain
11/09/11

Expand your knowledge of video calibration by reading our new article on close loop calibration and learn how CalMAN AutoCal actually works through its communication with the different components. Read through the purpose of each calibration device and how each is connected to CalMAN for a close loop calibration that enhances the user’s ability to make cascading setting quickly and efficiently.

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3D HDTV Calibration Basics
Tom Schulte
4/6/2011

With the advent of the 3D display we have all been left wondering: What is relevant in a 3D display? How do active shutter glasses affect viewing? What should we look for in a 3D display? What calibration procedure should we use? This Tip is designed to answer all of these questions.

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Stereoscopic 3D Video in the Home
Tom Schulte
4/6/2011

Many consumers are looking with interest at all the 3D TV and projector models that are now becoming available to them, and most of them hope that they don’t need to replace all their video equipment to gain 3D playback capabilities. When your clients ask you whether any of their current video equipment can work for watching 3D movies, or when they ask you for recommendations for purchasing new 3D video equipment, do you feel comfortable with your answers? Or, when you install 3D equipment for a client, but you don’t get 3D pictures, do you know how to quickly get back to the happy installer/happy client mode?

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C.M.S.
Terry Paullin
12/2010

The term surfaced about two or three years ago on display products whose "CMS" adjustments fell far from the mark. They were two dimensional, hard to use and at the end of the day, did little or nothing to fix the targeted problems. As the technology has continued to mature, "CMS" has become a term that now has a broader meaning to encompass a wider variety of adjustments intended to "manage" all things that have a significant impact on color — specifically, grayscale, gamma and gamut.

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Chromaticity Shift and Viewing Angle
Raymond Soneira
12/10/2010

With this issue, we bring you a new contributor, Dr. Raymond Soneira, a research scientist with a career that spans physics, computer science, and television system design. Dr. Soneira obtained his Ph.D. in Theoretical Physics from Princeton University, spent 5 years as a Long-Term Member of the world famous Institute for Advanced Study in Princeton, and another 5 years as a Principal Investigator in the Computer Systems Research Laboratory at AT&T Bell Laboratories. He is currently President of DisplayMate Technologies Corporation of Amherst, New Hampshire, which produces video calibration, evaluation, and diagnostic products for consumers, technicians, and manufacturers.

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Four-Color Matrix Method
Edward Kelley
11/08/2010

Many of us use colorimeters to attempt to make measurements of the colors presented on electronic displays. These colorimeters often consist of three or four filtered photodiodes that in proper combination provide chromaticity values (x, y) and the luminance L for the CIE 1931 color space.i

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Runco LS-5 DLP Front Projector
Terry Paullin
08/2010
 
This may be the first time "Runco" and "very affordable" have seen each other in the same sentence. "High quality" is a familiar sentence pal, but so are retail numbers well into 5 digits. But so be it. The new LS-5 DLP front projector DOES carry the Runco logo and logs in at a tick under $7,000. With anything close to its performance in the marketplace sporting at least one extra digit in the price tag, this offering should be a no-brainer for anyone waiting to see what's around the corner. Wait no longer. Pristine pixels for minimum dinero are here at last. But now I've gone and spilled the beans ...

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Video Calibration – What is it and why do we do it?
Lou Erhardt
07/06/2010

Albert Einstein once said, "You never really understand something until you can explain it to your grandmother." It is a simple gauge, yet one that can be very humbling when we deal in complex topics. Nowadays, most of us have been introduced to, and/or have some level of understanding of what video calibration is. Still, we might find it a bit challenging to describe what calibration actually means.

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This Changes Everything! ... About Calibration
Terry Paullin
06/2010

Some may read this as a blatant commercial for SpectraCal. It is not. What follows is a short, informal treatise on the state-of-the-art of display calibration, what a calibration client should know and how it may affect you.

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