[mythtv-users] High end, state of the art Myth Frontend

[Joseph Fry]

>>>> What is the current best de-interlacer for high motion (sports)
>>>
>>>
>>> I'd have to say it's picking up a $5 wrench and repeatedly hitting
>>> whoever it was decided it should be interlaced in the first place.
>>
>>
>> I'm doing my best with my clients but it's really joe public who mucked
>> things up by mumbling 1080 is bigger than 720 so mus' be better!?
>>
>> There were people at my previous motor sports employer who said that 1080i
>> looked better because it looked more like SD when panned, 720p looked too
>> clean!?!
>>
>> There are many many people in Television standards bodies who have said
>> quietly into their beer that 1080i was a big mistake. 720p for broadcast,
>> 1080p for bluray would have been great and lovely.
>
>
> I dunno.  A broadcast HD channel here last year went from 1080i60 to 720p30
> without me realizing the change was coming.  The very next hockey game I
> watched I immediately noticed the picture looked crappy.  I assumed somehow
> the game had inadvertently been transcoded by myth, but no, I discovered the
> channel had changed format.
>
> 1080 has 2.25 times the resolution of 720 and it really makes a big
> difference.  Count me as one who would prefer a well-deinterlaced 1080i game
> to a 720p one.

If they went to 720p30... that would suck.  720p is 60Hz.  I would
imagine that they screwed something up on their end, as without doubt,
720p makes for far fewer motion artifacts.  While a good deinterlacer
helps 1080i... I have never seen a deinterlacer that can get rid of
the smearing during high motion... smearing that a true progressive
image will not have.

I have seen bad progressive scan cameras though.  Essentially, many
cameras don't read the entire frame at once.... instead they scan the
lines of the CCD one at a time over whatever period the shutter speed
is set to.  this means that during a pan, the top line and the bottom
line can be significantly displaced, causing vertical objects to
appear slanted.  Any good broadcast quality camera uses frame transfer
CCD's to eliminate this problem.