Dear experts and Mr. Gero,
It seems that the conditions described in the document can hardly be called "reasonable and fair conditions".
For example, for Media codecs, it specifies H.263 with Annex O. As we all know, Annex O (with spatial, temporal and SNR scalability) is NOT in the Wireless Profiles of H.263. Indeed, it is not in ANY of the profiles defined in H.263.
The whole Annex O is such a very complex algorithm, that it is NOT even in the most complex profiles where complexity is not that much a concern. It is really unimaginable that any mobile applications will use Annex O.
If the Siemens proposal needed such a un-realistic scenario to provide any possible gain, the wireless connection oriented Annex I seems is not the right place for it.
Since Mr. Gero have just proposed the condition now, he may have enough resource to test it before the document submission date. Maybe you can test it also without Annex O, Mr. Gero?
Sincerely,
Adam Li
---------- Adam H. Li, Ph.D. Image Communication Lab (310) 825-5178 (Lab) University of California, Los Angeles (310) 825-7928 (Fax)
-----Original Message----- From: Mailing list for parties associated with ITU-T Study Group 16 [mailto:ITU-SG16@mailbag.cps.intel.com]On Behalf Of Baese Gero Sent: Friday, October 13, 2000 7:38 AM To: ITU-SG16@mailbag.cps.intel.com Subject: test conditions provided
Dear experts,
the long lasting diskussion about the superiority of one of the proposals concerning error resilient transmission of progressive multimedia streams(H.323 Annex I) needs to be decided on an objective basis soon.
Therefor we are providing reasonable and fair test conditions.
The test conditions are focused on a common UMTS scenario with video input and PSNR as an objective quality measurement. Furthermore every step in between is well defined and a graphic visualization of the outcome is the ideal and easy basis, with not much room for interpretation, for the decision process.
Comments, questions and supplements are welcome.
Best wishes Gero Baese
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