A lot of visualization material is advertised to the general public as having “billions of colors”. This dazzling spec, however, is still unlikely to be noticed by that public because it depends on the content displayed. And, more importantly, it depends on the uniformity of the display equipment.
A lot of visualization material is advertised to the general public as having “billions of colors”. This dazzling spec, however, is still unlikely to be noticed by that public because it depends on the content displayed. And, more importantly, it depends on the uniformity of the display equipment.
LCD to the rescue
Color is important for broadcast professionals in the sense that what they are editing or broadcasting needs to look exactly the same as the recorded signal, which often poses a challenge. For a long time, one limiting aspect of color reproduction of recorded material was display technology itself. Luckily, cumulative advances in professional LCD technology straightened out nearly all color uniformity, accuracy and calibration issues, and have finally resulted in up-to-date, digital monitors that can handle the variety of requirements of the modern post-production environment.
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Colors of life
Financial considerations fade quickly when we’re dealing with life-critical work in medical imaging. There an error in the image’s color uniformity could result in a wrong diagnosis, and even put a patient’s life at risk. High-end medical displays now feature a technology called “I-Guard”. Through a minuscule photometer, I-Guard monitors overall image quality and ensures that all displays throughout the hospitals are in tune with each other.
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Codes of color
Less obvious fields where color plays a role, are scientific research and utilities monitoring. If an operator fails to recognize a certain hue of red as an indication of danger because it looks like brown, it could result in the wrong decisions. To avoid color differences in segmented and multi-part display systems, one solution is manual calibration. But this is costly, and it takes time. Therefore, new solutions were developed that would automate this process and kill two birds with one stone: eliminate initial differences as well as differences over time. For video walls in control rooms, Barco has developed a technology called Sense6. This intelligent sensor technology realigns the native color triangles of all DLP display cubes or LCD tiles’ to one common optimum color triangle. Furthermore, it routinely readjusts and calibrates the entire display’s color triangle for differences that may occur over time.
