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* Integrated OpenGV * Fixed build without opengv * Cmake: moved OpenGV dependency status under solvers group * Added multi-stereocamera models support * Fixed OpenGV 0 sample error when one of the camera doesn't have features. Fixed g2o BA id offset with multi-camera. * Fixed multicam 3d points generated from stereo correspondences * db: Fixed multi stereo models not loaded correctly * gui: fixed stereo rectification option, RegVis: fixed projection error with old databases (image size not set in calibration) * OdomF2M: Fixed map.at error when bundle adjustment is not used * depthai: added imu firmware update option for convenience * Fixed various refactor errors * Moved "large number stereo correspondences rejected" warning outside computeCorrespondences function for multicam * Added error log if ba correspondences are computed with empty signatures * fixed compilation errors with latest opencv Co-authored-by: mathieu86 <mathieu@robust.ai>
Used with OpenCV 2: * Orb.cpp is a modified version of OpenCV2 Orb with FAST object from rtabmap (FAST with Grid adaptor). Used for all OpenCV versions: * solvepnp.cpp is a copy of the OpenCV3 version of solvePnPRansac. * five-point.cpp is a copy of the same file in OpenCV (d2872afce0fcc84a52b5753960730595550e1b62) but with RANSAC estimator using 6 points instead of 5 points to avoid "DLT algorithm needs at least 6 points for pose estimation from 3D-2D point correspondences. (expected: 'count >= 6')" error on recent OpenCV versions using DLT by default.