OpenCV_4.2.0/opencv_contrib-4.2.0/modules/sfm/test/test_simple_pipeline.cpp

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#if CERES_FOUND
#include "test_precomp.hpp"
#include <opencv2/sfm/simple_pipeline.hpp>
namespace opencv_test { namespace {
const string SFM_DIR = "sfm";
const string TRACK_FILENAME = "backyard_tracks.txt";
TEST(Sfm_simple_pipeline, backyard)
{
string trackFilename =
string(TS::ptr()->get_data_path()) + SFM_DIR + "/" + TRACK_FILENAME;
// Get tracks from file: check backyard.blend file
std::vector<Mat> points2d;
parser_2D_tracks( trackFilename, points2d );
// Initial reconstruction
int keyframe1 = 1, keyframe2 = 30;
// Camera data
double focal_length = 860.986572265625; // f = 24mm (checked debugging blender)
double principal_x = 400, principal_y = 225, k1 = -0.158, k2 = 0.131, k3 = 0;
int refine_intrinsics = SFM_REFINE_FOCAL_LENGTH | SFM_REFINE_PRINCIPAL_POINT | SFM_REFINE_RADIAL_DISTORTION_K1 | SFM_REFINE_RADIAL_DISTORTION_K2;
int select_keyframes = 0; // disable automatic keyframes selection
int verbosity_level = -1; // mute logs
libmv_CameraIntrinsicsOptions camera_instrinsic_options =
libmv_CameraIntrinsicsOptions(SFM_DISTORTION_MODEL_POLYNOMIAL,
focal_length, principal_x, principal_y,
k1, k2, k3);
libmv_ReconstructionOptions reconstruction_options(keyframe1, keyframe2, refine_intrinsics, select_keyframes, verbosity_level);
Ptr<SFMLibmvEuclideanReconstruction> euclidean_reconstruction =
SFMLibmvEuclideanReconstruction::create(camera_instrinsic_options, reconstruction_options);
// Run reconstruction pipeline
euclidean_reconstruction->run(points2d);
double error = euclidean_reconstruction->getError();
//cout << "euclidean_reconstruction error = " << error << endl;
EXPECT_LE( error, 1.4 ); // actually 1.38671
// UPDATE: 1.38894
}
}} // namespace
#endif /* CERES_FOUND */