Timecode is not used in tracking #29688

New Issue

David Sheftick · 2011-12-24T21:52:34+01:00

David Sheftick commented

2011-12-24 21:52:34 +01:00

%%%Blender does not use the timecode index when tracking video files. This causes vary poor tracking results in video files that require TCs. If the entire sequence is cashed into memory then the tracking works fine, but once it comes to a point that is not yet cashed it goes crazy.
I am not sure where the timecode is being ignored, possibly in the case of getting the keyframe/previous frame?
Notice how unstable the tracking is in the attached file.
http://davidsheftick.com/uploads/Tracking.zip

Tested on Blender 2.61 official release.
Windows 7 64bit and Ubuntu 11.04 32 bit.
4GB ram
NVIDIA Quadro 1600M
#9500 Core 2 Duo @ 2.6 GHz.
%%%

%%%Blender does not use the timecode index when tracking video files. This causes vary poor tracking results in video files that require TCs. If the entire sequence is cashed into memory then the tracking works fine, but once it comes to a point that is not yet cashed it goes crazy. I am not sure where the timecode is being ignored, possibly in the case of getting the keyframe/previous frame? Notice how unstable the tracking is in the attached file. http://davidsheftick.com/uploads/Tracking.zip Tested on Blender 2.61 official release. Windows 7 64bit and Ubuntu 11.04 32 bit. 4GB ram NVIDIA Quadro 1600M #9500 Core 2 Duo @ 2.6 GHz. %%%

David Sheftick commented

2011-12-24 21:52:34 +01:00

Changed status to: 'Open'

Sergey Sharybin commented

2011-12-27 11:55:39 +01:00

%%%Fixed in svn rev42898. Thanks for the report, will close it now.

P.S. Trackign isn't really solid still because you're truing to track small piece of cicrle and it's really difficult to prevent track from sliding in this case. Think trying to track head of pin or the whole pin might help resolving sliding.
P.P.S. It'll be a bit difficult to solv this scene because all markers are placed to the same plane. It'll be much more accurate solve if there'll be some markers in the background.%%%

%%%Fixed in svn rev42898. Thanks for the report, will close it now. P.S. Trackign isn't really solid still because you're truing to track small piece of cicrle and it's really difficult to prevent track from sliding in this case. Think trying to track head of pin or the whole pin might help resolving sliding. P.P.S. It'll be a bit difficult to solv this scene because all markers are placed to the same plane. It'll be much more accurate solve if there'll be some markers in the background.%%%

Sergey Sharybin commented

2011-12-27 11:55:41 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2011-12-27 11:55:41 +01:00

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Timecode is not used in tracking #29688