[opendtv] Re: Redefining high definition : please include videoprojectors
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 1 Jun 2012 09:55:12 -0400
At 5:35 PM -0500 5/31/12, Manfredi, Albert E wrote:
Craig Birkmaier wrote:
TV broadcasters could learn a lot from the streaming video industry,
which now offers multiple versions of content based on available
resolution of the target receiver and the bandwidth of the pipe being
used to deliver the content.
I don't know what you're trying to say here.
We were talking about the quality of broadcast TV images versus
Digital Cinema, and Richard noted that they take great care to
preserve the QUALITy of the samples (essentially near lossless
coding).
I noted that the quality of Broadcast TV is often severely
compromised by trying to squeeze too much into the channel.
The point is that it is better to deliver quality samples at lower
spatial resolutions, than to squeeze too hard and wreck the delivered
images, just for the sake of calling it HD. The streaming industry
looks at the channel bandwidth and the needs of the device to
determine the level of resolution to send.
Broadcasters cannot negotiate with the receivers and modify what they
send, but they can select resolutions that assure that the delivered
samples are of good quality.
Perhaps more important, if broadcasters choose to implement non-real
time services (e.g. downloading programs to devices overnight when
bandwidth is plentiful), then the broadcasts could deliver multiple
versions, and devices could look at the download schedule to cache
the appropriate version for the device.
Regards
Craig
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
Other related posts:
