127 lines
7 KiB
C
127 lines
7 KiB
C
|
///////////////////////////////////////////////////////////////////////////////
|
|||
|
|
// Copyright (C) 2016, Carnegie Mellon University and University of Cambridge,
|
|||
|
|
// all rights reserved.
|
|||
|
|
//
|
|||
|
|
// THIS SOFTWARE IS PROVIDED <20>AS IS<49> FOR ACADEMIC USE ONLY AND ANY EXPRESS
|
|||
|
|
// OR IMPLIED WARRANTIES WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|||
|
|
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|||
|
|
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
|
|||
|
|
// BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY.
|
|||
|
|
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|||
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|||
|
|
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|||
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|||
|
|
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|||
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|||
|
|
//
|
|||
|
|
// Notwithstanding the license granted herein, Licensee acknowledges that certain components
|
|||
|
|
// of the Software may be covered by so-called <20>open source<63> software licenses (<28>Open Source
|
|||
|
|
// Components<74>), which means any software licenses approved as open source licenses by the
|
|||
|
|
// Open Source Initiative or any substantially similar licenses, including without limitation any
|
|||
|
|
// license that, as a condition of distribution of the software licensed under such license,
|
|||
|
|
// requires that the distributor make the software available in source code format. Licensor shall
|
|||
|
|
// provide a list of Open Source Components for a particular version of the Software upon
|
|||
|
|
// Licensee<65>s request. Licensee will comply with the applicable terms of such licenses and to
|
|||
|
|
// the extent required by the licenses covering Open Source Components, the terms of such
|
|||
|
|
// licenses will apply in lieu of the terms of this Agreement. To the extent the terms of the
|
|||
|
|
// licenses applicable to Open Source Components prohibit any of the restrictions in this
|
|||
|
|
// License Agreement with respect to such Open Source Component, such restrictions will not
|
|||
|
|
// apply to such Open Source Component. To the extent the terms of the licenses applicable to
|
|||
|
|
// Open Source Components require Licensor to make an offer to provide source code or
|
|||
|
|
// related information in connection with the Software, such offer is hereby made. Any request
|
|||
|
|
// for source code or related information should be directed to cl-face-tracker-distribution@lists.cam.ac.uk
|
|||
|
|
// Licensee acknowledges receipt of notices for the Open Source Components for the initial
|
|||
|
|
// delivery of the Software.
|
|||
|
|
|
|||
|
|
// * Any publications arising from the use of this software, including but
|
|||
|
|
// not limited to academic journal and conference publications, technical
|
|||
|
|
// reports and manuals, must cite at least one of the following works:
|
|||
|
|
//
|
|||
|
|
// OpenFace: an open source facial behavior analysis toolkit
|
|||
|
|
// Tadas Baltru<72>aitis, Peter Robinson, and Louis-Philippe Morency
|
|||
|
|
// in IEEE Winter Conference on Applications of Computer Vision, 2016
|
|||
|
|
//
|
|||
|
|
// Rendering of Eyes for Eye-Shape Registration and Gaze Estimation
|
|||
|
|
// Erroll Wood, Tadas Baltru<72>aitis, Xucong Zhang, Yusuke Sugano, Peter Robinson, and Andreas Bulling
|
|||
|
|
// in IEEE International. Conference on Computer Vision (ICCV), 2015
|
|||
|
|
//
|
|||
|
|
// Cross-dataset learning and person-speci?c normalisation for automatic Action Unit detection
|
|||
|
|
// Tadas Baltru<72>aitis, Marwa Mahmoud, and Peter Robinson
|
|||
|
|
// in Facial Expression Recognition and Analysis Challenge,
|
|||
|
|
// IEEE International Conference on Automatic Face and Gesture Recognition, 2015
|
|||
|
|
//
|
|||
|
|
// Constrained Local Neural Fields for robust facial landmark detection in the wild.
|
|||
|
|
// Tadas Baltru<72>aitis, Peter Robinson, and Louis-Philippe Morency.
|
|||
|
|
// in IEEE Int. Conference on Computer Vision Workshops, 300 Faces in-the-Wild Challenge, 2013.
|
|||
|
|
//
|
|||
|
|
///////////////////////////////////////////////////////////////////////////////
|
|||
|
|
|
|||
|
|
#ifndef __PDM_h_
|
|||
|
|
#define __PDM_h_
|
|||
|
|
|
|||
|
|
// OpenCV includes
|
|||
|
|
#include <opencv2/core/core.hpp>
|
|||
|
|
|
|||
|
|
#include "LandmarkDetectorParameters.h"
|
|||
|
|
|
|||
|
|
namespace LandmarkDetector
|
|||
|
|
{
|
|||
|
|
//===========================================================================
|
|||
|
|
// A linear 3D Point Distribution Model (constructed using Non-Rigid structure from motion or PCA)
|
|||
|
|
// Only describes the model but does not contain an instance of it (no local or global parameters are stored here)
|
|||
|
|
// Contains the utility functions to help manipulate the model
|
|||
|
|
|
|||
|
|
class PDM{
|
|||
|
|
public:
|
|||
|
|
|
|||
|
|
// The 3D mean shape vector of the PDM [x1,..,xn,y1,...yn,z1,...,zn]
|
|||
|
|
cv::Mat_<double> mean_shape;
|
|||
|
|
|
|||
|
|
// Principal components or variation bases of the model,
|
|||
|
|
cv::Mat_<double> princ_comp;
|
|||
|
|
|
|||
|
|
// Eigenvalues (variances) corresponding to the bases
|
|||
|
|
cv::Mat_<double> eigen_values;
|
|||
|
|
|
|||
|
|
PDM(){;}
|
|||
|
|
|
|||
|
|
// A copy constructor
|
|||
|
|
PDM(const PDM& other);
|
|||
|
|
|
|||
|
|
void Read(string location);
|
|||
|
|
|
|||
|
|
// Number of vertices
|
|||
|
|
inline int NumberOfPoints() const {return mean_shape.rows/3;}
|
|||
|
|
|
|||
|
|
// Listing the number of modes of variation
|
|||
|
|
inline int NumberOfModes() const {return princ_comp.cols;}
|
|||
|
|
|
|||
|
|
void Clamp(cv::Mat_<float>& params_local, cv::Vec6d& params_global, const FaceModelParameters& params);
|
|||
|
|
|
|||
|
|
// Compute shape in object space (3D)
|
|||
|
|
void CalcShape3D(cv::Mat_<double>& out_shape, const cv::Mat_<double>& params_local) const;
|
|||
|
|
|
|||
|
|
// Compute shape in image space (2D)
|
|||
|
|
void CalcShape2D(cv::Mat_<double>& out_shape, const cv::Mat_<double>& params_local, const cv::Vec6d& params_global) const;
|
|||
|
|
|
|||
|
|
// provided the bounding box of a face and the local parameters (with optional rotation), generates the global parameters that can generate the face with the provided bounding box
|
|||
|
|
void CalcParams(cv::Vec6d& out_params_global, const cv::Rect_<double>& bounding_box, const cv::Mat_<double>& params_local, const cv::Vec3d rotation = cv::Vec3d(0.0));
|
|||
|
|
|
|||
|
|
// Provided the landmark location compute global and local parameters best fitting it (can provide optional rotation for potentially better results)
|
|||
|
|
void CalcParams(cv::Vec6d& out_params_global, const cv::Mat_<double>& out_params_local, const cv::Mat_<double>& landmark_locations, const cv::Vec3d rotation = cv::Vec3d(0.0));
|
|||
|
|
|
|||
|
|
// provided the model parameters, compute the bounding box of a face
|
|||
|
|
void CalcBoundingBox(cv::Rect& out_bounding_box, const cv::Vec6d& params_global, const cv::Mat_<double>& params_local);
|
|||
|
|
|
|||
|
|
// Helpers for computing Jacobians, and Jacobians with the weight matrix
|
|||
|
|
void ComputeRigidJacobian(const cv::Mat_<float>& params_local, const cv::Vec6d& params_global, cv::Mat_<float> &Jacob, const cv::Mat_<float> W, cv::Mat_<float> &Jacob_t_w);
|
|||
|
|
void ComputeJacobian(const cv::Mat_<float>& params_local, const cv::Vec6d& params_global, cv::Mat_<float> &Jacobian, const cv::Mat_<float> W, cv::Mat_<float> &Jacob_t_w);
|
|||
|
|
|
|||
|
|
// Given the current parameters, and the computed delta_p compute the updated parameters
|
|||
|
|
void UpdateModelParameters(const cv::Mat_<float>& delta_p, cv::Mat_<float>& params_local, cv::Vec6d& params_global);
|
|||
|
|
|
|||
|
|
};
|
|||
|
|
//===========================================================================
|
|||
|
|
}
|
|||
|
|
#endif
|