A history of CCTV test charts!


ViDi Labs has just finished designing its latest test chart for the CCTV industry, v.5.0.

This is a great update with many new features that will easily and convincingly indicate various camera qualities. The new test chart is intended for cameras with various aspect ratio imaging sensors such as 16:9, 3:2 and 4:3, including the most common HD resolution (1920×1080 pixels), the new UHD (aka 4k, with 3840×2160 pixels) and all other megapixel cameras. Most importantly, this new test chart accommodates the latest CCTV standards, including the IEC 62676-4 and 62676-5 standards and continuous sine-wave Siemens stars for better resolution measurements, faces, money and cards samples, number-plates, as well as Macbeth colour chart. Here at ViDi Labs, we felt it was time for a test chart update.

However, before I explain all the innovations that are included in this new design, I would like to go back in time and give you a history of the test charts we have been producing for over twenty- five years. It may come as a surprise to some that we were the first in the industry to introduce test charts for the CCTV industry.

Back in 1994, I wrote and published my first book on the subject of CCTV (simply called ‘CCTV’).

At the time it was the fundamental book in the world on this subject. My intentions were not only to demystify Closed Circuit Television technology but, equally, to offer a tool to CCTV customers that they could use to test, analyse and compare cameras. It was during this time that I came up with an idea to design a test chart that could be printed on the back cover of this first book. So, not only could one read the book, but they could also use the back cover as a test target as well…Click here to read full article.


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