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Diffstat (limited to 'extern/libmv/ChangeLog')
-rw-r--r-- | extern/libmv/ChangeLog | 130 |
1 files changed, 98 insertions, 32 deletions
diff --git a/extern/libmv/ChangeLog b/extern/libmv/ChangeLog index c52d5456c32..222fc4eaa1f 100644 --- a/extern/libmv/ChangeLog +++ b/extern/libmv/ChangeLog @@ -1,3 +1,101 @@ +commit 575336f794841ada90aacd783285014081b8318c +Author: Sergey Sharybin <sergey.vfx@gmail.com> +Date: Mon Jan 7 15:58:40 2013 +0600 + + Fixed for keyframe selection + + - Calculate residuals for GRIC in pixel space rather than + in normalized space. + + This seems to be how it's intended to be used. + + Algebraic H and F will still use normalized coordinates which + are more stable, after this matrices are converted to pixel + space and Ceres refinement happens in pixel space. + + - Standard deviation calculation was wrong in GRIC. It shouldn't + be deviation of residuals, but as per Torr it should be deviation + of measurement error, which is constant (in our case 0.1) + + Not sure if using squared cost function is correct for GRIC, + but cost function is indeed squared and in most papers cost + function is used for GRIC. After some further tests we could + switch GRIC residuals to non-squared distance. + + - Bring back rho part of GRIC, in unit tests it doesn't make + sense whether it's enabled or not, lets see how it'll behave + in real-life footage. + + - Added one more unit test based on elevator scene and manual + keyframe selection. + +commit 24117f3c3fc5531beb6497d79bb6f1780a998081 +Author: Sergey Sharybin <sergey.vfx@gmail.com> +Date: Sun Jan 6 19:07:06 2013 +0600 + + Added test for keyframe selection based on manual selection + + Additional changes: + + - Reduce minimal correspondence to match real-world manually + tracked footage + + - Returned back squares to SymmetricEpipolarDistance and + SymmetricGeometricDistance -- this is actually a cost + functions, not distances and they shall be squared. + +commit 770eb0293b881c4c419c587a6cdb062c47ab6e44 +Author: Sergey Sharybin <sergey.vfx@gmail.com> +Date: Fri Dec 21 00:43:30 2012 +0600 + + Improvements for keyframe selection + + - Changed main keyframe selection cycle, so in cases there're no + more next keyframes for current keyframe could be found in the + image sequence, current keyframe would be moved forward and + search continues. + + This helps in cases when there's poor motion in the beginning + of the sequence, then markers becomes occluded. There could be + good keyframes in the middle of the shot still. + + - Extended keyframe_selection_test with real world cases. + + - Moved correspondences constraint to the top, so no H/F estimation + happens if there's bad correspondence. Makes algorithm go a bit + faster. + + Strangely, but using non-squared distances makes neighbor frames + test fail, using squared distances makes this tests pass. + + However, using non-squared distances seems to be working better + in real tests i've been doing. So this requires more investigation/ + +commit 7415c62fbda36c5bd1c291bc94d535a66da896d0 +Author: Sergey Sharybin <sergey.vfx@gmail.com> +Date: Thu Dec 20 18:46:09 2012 +0600 + + Cosmetic change to correspondences reports in keyframe selection + +commit ceaf80c987ec0338e7e83965bc808411453eb755 +Author: Sergey Sharybin <sergey.vfx@gmail.com> +Date: Thu Dec 20 18:08:03 2012 +0600 + + Various fixes: + + - That was a typo in symmetric geometric cost functor, which + computed inverse distance in a wrong way. + + - Fixed compilation of unit tests + + - Added simple test for keyframe selection. Currently only + covers case that neighbor frames with only translation + (homography should be better than fundamental) are not + considered a keyframes. + + Still need to be investigated why it only works if tracks + are in pixel space and why doesn't work in normalized space. + commit cfabdfe48df2add3d1f30cf4370efd0b31990ab0 Author: Sergey Sharybin <sergey.vfx@gmail.com> Date: Thu Dec 20 05:46:53 2012 +0600 @@ -690,35 +788,3 @@ Author: Sergey Sharybin <sergey.vfx@gmail.com> Date: Fri Feb 17 21:32:05 2012 +0600 Picky edits: corrected EOL - -commit 3f2a4205ec5adadcdfa306b161c705c868a7be93 -Author: Sergey Sharybin <sergey.vfx@gmail.com> -Date: Fri Feb 17 21:30:07 2012 +0600 - - Fixed incorrect access to ucontext on linux. Caused by incorrect merge conflict resolve. - -commit d360a21a5aa125cf9e83dd26b302508688ff7007 -Author: Sergey Sharybin <sergey.vfx@gmail.com> -Date: Fri Feb 17 20:54:13 2012 +0600 - - More Windows -> Unix EOL conversions - -commit 18aeda58bec9556140ba617724e31ada6f5b67c0 -Author: Sergey Sharybin <sergey.vfx@gmail.com> -Date: Fri Feb 17 20:15:42 2012 +0600 - - Looks like this debug output was removed accidentally. - -commit 189dc0cacdee3c1eab68c43263ecb038ed244c09 -Author: Sergey Sharybin <sergey.vfx@gmail.com> -Date: Fri Feb 17 20:11:56 2012 +0600 - - Made V3D verbose again by default - -commit 8b3422d3eec5e450d76243886bf07fb0a3e83a81 -Author: Sergey Sharybin <sergey.vfx@gmail.com> -Date: Fri Feb 17 20:08:01 2012 +0600 - - SAD tracker now can deal with pattern size any size, - Very quick implementation came from Blender before Hybrid tracker was added. - Better to be replaced with brute tracker. |