>> >> rather it is some kind of interpolation.
>>
>> Well if the programme is only broadcast at 50Hz then it either has to refresh
>> the same image a few times (so no point) or make up (i.e. guess) the
>> extra frames. These frames never existed so it is a guess.
>>
Actually my description is probably wrong, WHICH descibe it as follows:
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100Hz and 200Hz processing
Most TV pictures are broadcast or recorded at 50Hz – that’s 50 fields or 25 frames per second.
In an attempt to manipulate the picture and create the illusion of smoother motion, many LCD and plasma TVs feature 100Hz processing software. This basically doubles the number of frames on screen.Some of the very latest LCD and plasma TVs boast 200Hz processing software, quadrupling the original frame rate, and placing 100 frames on the screen every second.
600Hz processing
600Hz processing Instead of increasing the frame rate in the same way as 100 or 200Hz models, 600Hz TVs rapidly flash the pixels (that make up each frame) on and off in an attempt to create the illusion of smoother movement. Technically known as ‘sub-field’ processing, it’s found on some plasma TVs.
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Last edited by: Cheddar on Mon 20 Dec 10 at 22:41
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