Question on the Query Interaction

[yksu]

Hi,

I have a question for the query interaction (QIM) for the tracking_instances.

So, at the end to the forward function, it appen the active track instance to the init_track_instance.

Why we do the appending but not just update or replacing the old track instance by the updated track instance?

[ilnehc]

@yksu You need additional track queries to detect newborn objects.

[yksu]

Thanks for the point out the newborn object.

My current issues is that for the downstream task, where I need the fixed shape of query, while the way UniAD implement would have more than 300 agents.

But, I'm wondering that since after the detection and matching for single fraame,
isn't we just need to update the query according to the active_index?