Why HDTV?

10.07.2007 14:11

When I was designing Galaksija's video amplifier I did some reading on the design of analogue (now called low-definition) TV systems. It's impressive how much science and research went into this.

The resolution of various components of the video stream (luminance, chrominance) for example was chosen on the basis of research into the capabilities of the human eye. Only some relatively minor design decisions were based on technology limitations of the time (like interlaced picture).

Now suddenly there appears to be a general opinion that these 40-years old specifications aren't good enough and that everyone should move to new HDTV standards. These new standards seem to be based on a race who will cram more pixels on the screen rather than some scientific method (it seems they can't even decide on a single picture format).

So I wonder: either the designers of the original TV missed something and the resolution of the analogue TV is really smaller than it should be or are HDTV systems designed only so that they look better in the shop when you're looking at them from a much shorter distance than usual and can actually see the difference in the resolution.

Posted by Tomaž | Categories: Ideas

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