[opendtv] Re: Panasonic's AG-HVX200
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 27 Apr 2005 08:58:30 -0400
At 10:18 AM -0400 4/26/05, Mark Schubin wrote:
> >Oversampling is a good thing, and as Mark tells us, we can
>>push more detail under the usable portion of the MTF curve when we
>>downsample for emission coding.
>>
>>
>Not more "detail." Detail is limited by the emission constraints. More
>"sharpness." Sharpness is proportional to the square of the area under
>an MTF curve, and an HD camera and lens increase that area even at low
>detail.
>
Thanks for the clarification Mark.
Now a question. Is not sharpness directly related to the ability to
perceive detail?
I am reminded of many early HDTV demos where there was plenty of
detail, but the pictures lacked decent contrast and sharpness. It
seems that this is a necessary pre-cursor to the ability to perceive
increased detail...
Regards
Craig
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