[opendtv] Re: News: Intel introduces chips designed to improve Internet video quality
- From: "Hughes Gary-DJWV76" <ghughes@xxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 20 Nov 2007 14:26:39 -0500
> [mailto:opendtv-bounce@xxxxxxxxxxxxx] On Behalf Of Tom Barry
> Sent: Tuesday, November 20, 2007 12:41 PM
>
> Anybody know if AVC-intra still has much advantage over
> MPEG-2 if it is using just intra-frame compression and loses
> the advantages of its fancier (and CPU intensive) motion
> compensation modes?
It offers intra-mode spatial prediction and the high profiles (that
Panasonic is using in their AVC Intra prducts) add perceptual based
quantization scaling (although MPEG-2 had something similar).
I've read some papers that claim intra only H.264 is competitive with
JPEG2000, and if the end product is going to be transcoded to an AVC
emission format there is probably an advantage in starting with AVC
Intra.
Gary
Gary Hughes
Video Architect, Advanced Engineering
Motorola On Demand Solutions, MA34
80 Central St.
Boxborough, MA 01719
Email: ghughes@xxxxxxxxxxxx
Office: 978 266 7269
Mobile: 978 339 3615
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