How to align vector and raster images? For example vector images will be static/rigid and raster image will be morphable. For example I manually do initial guess and algorithm must converge to optimal solution by morphing raster image. I have raster and vector data represented as point clouds in 2d. Raster data extracted as contours so it contain some noise. Raster and vector data slightly differs in scale and position,raster data can also have some small perspective distortion and barrel distortion, but I can provide initian alignment. I want to raster data "converged" to unchangeble vector data, so I think I want some kind of non-rigid point cloud matching. By alignment of 2 point clouds then I want to determine some parameters(maybe TPS spline?) and unwarp raster image and then draw vector image above it.
I tried to use KCReg it use some specific metric for point clouds, but it give me unsatisfactory results because my distortion can be only roughly expressed by perspective transform and I need some more non-rigid alignment.I also tried gmmreg. I seems it uses some Broyden Fletcher Goldfarb Shannon minimization from VNL, but I managed to achive good results only for simple tasks for example here some my attempts using gmmreg
for example affine
barrel-barrel backwards-barrel rigid
http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/barrel_test.png http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/barrel_test_back.png http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/barrel_test_rigid.png rigid scale rotate shift http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/rigid%3Dscale_rotate_shift_noise.png
but it fails on real problem, maybe I don't set constraints/bounds or initial guess well. rigid shift
http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/rigid_no_guess.png TPS_L2 no guess http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/TPS_L2_no_guess.png TPS_L2 initial guess http://dl.dropbox.com/u/8841028/ICP/gmmreg_tests/TPS_L2_initial_guess.png