[opendtv] Re: The HD Plebo Effect
- From: Tom Barry <trbarry@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 09 Oct 2009 12:36:55 -0400
Craig Birkmaier wrote:
> At 8:51 AM -0400 10/9/09, Craig Birkmaier wrote:
>> While it is not practical to have one-size-fit-all, a few sizes may
>> be sufficient. Apple's iTunes SD content is now 360P while it's HD
>> content is 720P. 360P is the resolution of the screen on an iPhone.
>> It looks fine upscaled to my 50" DLP display.
>>
>
>
> My bad. The iPhone is 480 x 320 at 163 dpi.
>
> Apple states that SD movies are now encoded using the full 720
> horizontal samples for all aspect ratios; the source can be up to 480
> lines but is typically less, as most movies are 1.85:1 or wider. They
> also state that the horizontal samples use an anamorphic squeeze to
> fully utilize the 720 samples per line. The letterbox areas are not
> encoded so the average number of lines is probably closer to 360.
>
> Regards
> Craig
>
I'm not exactly in the market for a new phone yet but have been
following the HTC Touch Diamond 2. This will have a 480x800 resolution
and I expect other vendors to follow.
<http://www.htc.com/www/product/touchdiamond2/specification.html>
Even for lower rez source a upscaled display can look better. And I
have discovered I like reading books on my current windows mobile HTC
phone so want the slightly larger and more detailed screen. I expect
even pocket devices to eventually all have at least 720p resolution and
eventually many/most will also be able to operate as small projectors.
- Tom
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