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Annex 3 to Doc. AVC-106R
Annex 3 to Doc. AVC-106R

AGREEMENTS AND ACTION POINTS FOR THE PICTURE FORMAT ISSUE


INTERIM COMMON VIEW OF THE EXPERTS GROUP

1. No standardization of format conversion.
2. Can specify a maximum resolution for the "601" class of services
	a) 59.94Hz frame rate
	b) Progressive
	c) 576 lines
	d) 7xx pels/line
	e) 4:3 aspect ratio
3. Support CIF Pel Aspect Ratio
4. Above applies to the decoder.


QUESTIONS

1. Impact of square pels?
2. Next class is HDTV or EDTV?
3. Are Max and SCIF the same?
4. Which subsets are allowed?


SINGLE FIXED SCIF
-------------------------------------------------------------------------------------
		PROS				|		CONS
-------------------------------------------------------------------------------------
 1. Fixed decoder				| 1. Limits picture size and shape
 2. MCU easier				| 2. Intra-regional is more expensive
 3. Windows easier			|    and poorer performance.
 4. Equal burden				| 3. Two conversions instead of one.
 5. Display with only one 		|
    conversion				|
-------------------------------------------------------------------------------------

MAXIMUM SERVICE CLASS
-------------------------------------------------------------------------------------
		PROS				|		CONS
-------------------------------------------------------------------------------------
 1. Unforeseen services			| (Some pros for SINGLE FIXED SCIF may
 2. Allows for multi-format displays	|  be reworded here?)
-------------------------------------------------------------------------------------


HOMEWORK

1. Performance of SCIF conversions ; delay, quality, etc.
2. Coding efficiency
3. Conversion requirements
4. Address all "con" issues.
5. Applications of H.26x codec


FRAMEWORK FOR DISCUSSION OF H.26X FORMAT: see the attached table