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Haven't seen any new features added onto the map #49

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Fromandto opened this issue Sep 27, 2014 · 3 comments
Closed

Haven't seen any new features added onto the map #49

Fromandto opened this issue Sep 27, 2014 · 3 comments

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@Fromandto
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I launch the live stream file with the setting as

grid_size 20
max_n_kfs 0
loba_num_iter 10
max_fts 300

and point the camera (60fps, wide angle, global shutter) at a wall with a lot of portraits hanging on it .

Initialization result is great .

tracking around the initialization location is great too.

But when i move the camera away from the initial location, I cannot see any new feature points added onto the map. New areas are covered with portraits similar to the initial place.

In the packed bag and video, new feature points are added instantly when the camera translate or move away from the scene.

I wonder if the parameter setting is wrong ?
max_n_kfs set to 0 means infinite key frame ?

Hope anyone could help me out of this !

@mhkabir
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mhkabir commented Sep 28, 2014

Set max_n_kfs to something sensible like 15 or 20. 0 = no new keyframes(AFAIK)

Also, keyframe selection is designed for downward looking cameras and forward motions don't work very well.

@Fromandto
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I can see new features added onto the map now

@cssexpert217
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Hi @Fromandto,

Could you please tell me what changes did you need to make in order to get it working? Thanks

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3 participants