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Diffstat (limited to 'extern/libmv/libmv/tracking/track_region.h')
| -rw-r--r-- | extern/libmv/libmv/tracking/track_region.h | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/extern/libmv/libmv/tracking/track_region.h b/extern/libmv/libmv/tracking/track_region.h deleted file mode 100644 index be1d8ef3e03..00000000000 --- a/extern/libmv/libmv/tracking/track_region.h +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright (c) 2012 libmv authors. -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to -// deal in the Software without restriction, including without limitation the -// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -// sell copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING -// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS -// IN THE SOFTWARE. - -#ifndef LIBMV_TRACKING_TRACK_REGION_H_ - -// Necessary for M_E when building with MSVC. -#define _USE_MATH_DEFINES - -#include "libmv/image/image.h" -#include "libmv/image/sample.h" -#include "libmv/numeric/numeric.h" - -namespace libmv { - -struct TrackRegionOptions { - TrackRegionOptions(); - - enum Mode { - TRANSLATION, - TRANSLATION_ROTATION, - TRANSLATION_SCALE, - TRANSLATION_ROTATION_SCALE, - AFFINE, - HOMOGRAPHY, - }; - Mode mode; - - // Minimum normalized cross-correlation necessary between the final tracked - // positoin of the patch on the destination image and the reference patch - // needed to declare tracking success. If the minimum correlation is not met, - // then TrackResult::termination is INSUFFICIENT_CORRELATION. - double minimum_correlation; - - // Maximum number of Ceres iterations to run for the inner minimization. - int max_iterations; - - // Use the "Efficient Second-order Minimization" scheme. This increases - // convergence speed at the cost of more per-iteration work. - bool use_esm; - - // If true, apply a brute-force translation-only search before attempting the - // full search. This is not enabled if the destination image ("image2") is - // too small; in that case eithen the basin of attraction is close enough - // that the nearby minima is correct, or the search area is too small. - bool use_brute_initialization; - - // If true and brute initialization is enabled, first try refining with the - // initial guess instead of starting with the brute initialization. If the - // initial refinement fails, then a normal brute search followed by - // refinement is attempted. If the initial refinement succeeds, then the - // result is returned as is (skipping a costly brute search). - bool attempt_refine_before_brute; - - // If true, normalize the image patches by their mean before doing the sum of - // squared error calculation. This is reasonable since the effect of - // increasing light intensity is multiplicative on the pixel intensities. - // - // Note: This does nearly double the solving time, so it is not advised to - // turn this on all the time. - bool use_normalized_intensities; - - // The size in pixels of the blur kernel used to both smooth the image and - // take the image derivative. - double sigma; - - // Extra points that should get transformed by the warp. These points are - // appended to the x and y arrays. This is useful because the actual warp - // parameters are not exposed. - int num_extra_points; - - // For motion models other than translation, the optimizer sometimes has - // trouble deciding what to do around flat areas in the cost function. This - // leads to the optimizer picking poor solutions near the minimum. Visually, - // the effect is that the quad corners jiggle around, even though the center - // of the patch is well estimated. regularization_coefficient controls a term - // in the sum of squared error cost that makes it expensive for the optimizer - // to pick a warp that changes the shape of the patch dramatically (e.g. - // rotating, scaling, skewing, etc). - // - // In particular it adds an 8-residual cost function to the optimization, - // where each corner induces 2 residuals: the difference between the warped - // and the initial guess. However, the patch centroids are subtracted so that - // only patch distortions are penalized. - // - // If zero, no regularization is used. - double regularization_coefficient; - - // If the maximum shift of any patch corner between successful iterations of - // the solver is less than this amount, then the tracking is declared - // successful. The solver termination becomes PARAMETER_TOLERANCE. - double minimum_corner_shift_tolerance_pixels; - - // If non-null, this is used as the pattern mask. It should match the size of - // image1, even though only values inside the image1 quad are examined. The - // values must be in the range 0.0 to 0.1. - FloatImage *image1_mask; -}; - -struct TrackRegionResult { - enum Termination { - // Ceres termination types, duplicated; though, not the int values. - CONVERGENCE, - NO_CONVERGENCE, - FAILURE, - - // Libmv specific errors. - SOURCE_OUT_OF_BOUNDS, - DESTINATION_OUT_OF_BOUNDS, - FELL_OUT_OF_BOUNDS, - INSUFFICIENT_CORRELATION, - INSUFFICIENT_PATTERN_AREA, - CONFIGURATION_ERROR, - }; - Termination termination; - - bool is_usable() { - return termination == CONVERGENCE || - termination == NO_CONVERGENCE; - } - - int num_iterations; - double correlation; - - // Final parameters? - bool used_brute_translation_initialization; -}; - -// Always needs 4 correspondences. -void TrackRegion(const FloatImage &image1, - const FloatImage &image2, - const double *x1, const double *y1, - const TrackRegionOptions &options, - double *x2, double *y2, - TrackRegionResult *result); - -// Sample a "canonical" version of the passed planar patch, using bilinear -// sampling. The passed corners must be within the image, and have at least two -// pixels of border around them. (so e.g. a corner of the patch cannot lie -// directly on the edge of the image). Four corners are always required. All -// channels are interpolated. -// When mask is not null it'll be used as a pattern mask. Ot should match -// the size of image. -// Warped coordinates of marker's position would be returned in -// warped_position_x and warped_position_y -bool SamplePlanarPatch(const FloatImage &image, - const double *xs, const double *ys, - int num_samples_x, int num_samples_y, - FloatImage *mask, FloatImage *patch, - double *warped_position_x, double *warped_position_y); - -} // namespace libmv - -#endif // LIBMV_TRACKING_TRACK_REGION_H_ |