<div dir="ltr">Hey,<div><br></div><div>Nice to see developers interested in the motion tracker! :)</div><div><br></div><div>For the actual tracking we're using planar region tracker, which is implemented in track_region.cc [1], which is being use via automated pipeline. Input for this tracker is based on kalman's filter, which does rough prediction of the next coordinate and then tracker will either refine the predicted coordinate using Ceres least square minimizer with a motion model selected by user. If if kalman's prediction wasn't good enough then the planar region tracker will invoke brute initialization which is based on classical SAD tracker and then will refine it to subpixel precision,</div><div><br></div><div>Let me know if you've got more questions about how motion tracking is implemented in Blender.</div><div><br></div><div>[1] <a href="https://developer.blender.org/diffusion/B/browse/master/extern/libmv/libmv/tracking/track_region.cc">https://developer.blender.org/diffusion/B/browse/master/extern/libmv/libmv/tracking/track_region.cc</a></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Jul 11, 2015 at 8:29 PM, <span dir="ltr"><<a href="mailto:andi.wen.er@gmail.com" target="_blank">andi.wen.er@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div dir="ltr" style="font-family:'Calibri','Segoe UI','Meiryo','Microsoft YaHei UI','Microsoft JhengHei UI','Malgun Gothic','sans-serif';font-size:12pt"><div>Hi,</div><div><br></div><div>I am new to blender develepement and would like to contribute to the motion tracking,</div><div>so I have the following question:</div><div>Which region tracker is used in the final blender release?</div><div>As I can not find any setting in blender, I guess that only one is used. In the code however</div><div>I can see multiple trackers implemented.</div><div><br></div><div>Andi<br></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div><span style="color:rgb(102,102,102)">With best regards, Sergey Sharybin</span></div></div>
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