[M4IF Technotes] Objects in Simple Profile / Visual

[Fernando Pereira]

 Hi !
"Iain Richardson (ensigr)" wrote:
> 
> Hello
> 
> Annex N of MPEG-4 Visual (amend. 1) states that a Simple Profile stream
> can contain up to 4 objects; however, the Simple profile doesn't include
> the shape coding tools and my understanding was that Simple Profile
> encoders dealt with complete video frames. I'm interested in finding out
> how/why a Simple Profile encoder can support multiple objects.

 The objects are rectangular so no need dor shape coding. To compose the
various objects in the scene you will need MPEG-4 Systems tools like
BIFS.
 Regards
		Fernando
-- 
Fernando Manuel Bernardo Pereira, Ph.D., Professor
Instituto Superior Técnico - Instituto de Telecomunicações
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