There are two main advantages.  The first is the most obvious, HDTV offers significantly better resolution (image definition) than conventional standard definition video signals.  HDTV can offer twice the horizontal and twice the vertical resolution of conventional SDTV (four times the picture detail).  The other significant advantage is the big improvement in colour fidelity because of the number of pixels that make up the picture and the lack of colour interference that is such a problem with composite NTSC and PAL video images.

The much increased resolution available from HDTV means that high-quality video inspection and survey tasks can be performed faster and better.  Full 1080i HDTV video offers the equivalent of a 2MPixel stills image on every single video frame.  This allows video inspections to be more detailed, and potentially reduces the need for stills photographic inspection.  For remote manipulator operations, the additional image definition provided by HDTV potentially allows complex manipulative tasks to be completed faster and more easily, with less operator fatigue.

 

This table illustrates total horizontal and vertical pixel resolution via box size. It does not accurately reflect the screen shape (aspect ratio) of these formats, which is either 4:3 or 16:9.

 

FAQ
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