| 1 | // -*- mode: c++ -*- |
| 2 | |
| 3 | #ifndef __FACIAL_LANDMARK_DETECTOR_H__ |
| 4 | #define __FACIAL_LANDMARK_DETECTOR_H__ |
| 5 | |
| 6 | /**** |
| 7 | Copyright (c) 2020 Adrian I. Lam |
| 8 | |
| 9 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 10 | of this software and associated documentation files (the "Software"), to deal |
| 11 | in the Software without restriction, including without limitation the rights |
| 12 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 13 | copies of the Software, and to permit persons to whom the Software is |
| 14 | furnished to do so, subject to the following conditions: |
| 15 | |
| 16 | The above copyright notice and this permission notice shall be included in all |
| 17 | copies or substantial portions of the Software. |
| 18 | |
| 19 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 22 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 23 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 24 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 25 | SOFTWARE. |
| 26 | ****/ |
| 27 | |
| 28 | #include <deque> |
| 29 | #include <string> |
| 30 | #include <opencv2/opencv.hpp> |
| 31 | #include <dlib/image_processing/frontal_face_detector.h> |
| 32 | #include <dlib/image_processing.h> |
| 33 | #include <dlib/gui_widgets.h> |
| 34 | |
| 35 | class FacialLandmarkDetector |
| 36 | { |
| 37 | public: |
| 38 | struct Params |
| 39 | { |
| 40 | double leftEyeOpenness; |
| 41 | double rightEyeOpenness; |
| 42 | double leftEyeSmile; |
| 43 | double rightEyeSmile; |
| 44 | double mouthOpenness; |
| 45 | double mouthForm; |
| 46 | double faceXAngle; |
| 47 | double faceYAngle; |
| 48 | double faceZAngle; |
| 49 | // TODO eyebrows currently not supported... |
| 50 | // I'd like to include them, but the dlib detection is very |
| 51 | // noisy and inaccurate (at least for my face). |
| 52 | }; |
| 53 | |
| 54 | FacialLandmarkDetector(std::string cfgPath); |
| 55 | |
| 56 | Params getParams(void) const; |
| 57 | |
| 58 | void stop(void); |
| 59 | |
| 60 | void mainLoop(void); |
| 61 | |
| 62 | private: |
| 63 | enum LeftRight : bool |
| 64 | { |
| 65 | LEFT, |
| 66 | RIGHT |
| 67 | }; |
| 68 | |
| 69 | cv::VideoCapture webcam; |
| 70 | dlib::image_window win; |
| 71 | dlib::frontal_face_detector detector; |
| 72 | dlib::shape_predictor predictor; |
| 73 | bool m_stop; |
| 74 | |
| 75 | double calcEyeAspectRatio(dlib::point& p1, dlib::point& p2, |
| 76 | dlib::point& p3, dlib::point& p4, |
| 77 | dlib::point& p5, dlib::point& p6) const; |
| 78 | |
| 79 | double calcRightEyeAspectRatio(dlib::full_object_detection& shape) const; |
| 80 | double calcLeftEyeAspectRatio(dlib::full_object_detection& shape) const; |
| 81 | |
| 82 | double calcEyeOpenness(LeftRight eye, |
| 83 | dlib::full_object_detection& shape, |
| 84 | double faceYAngle) const; |
| 85 | |
| 86 | double calcMouthForm(dlib::full_object_detection& shape) const; |
| 87 | double calcMouthOpenness(dlib::full_object_detection& shape, double mouthForm) const; |
| 88 | |
| 89 | double calcFaceXAngle(dlib::full_object_detection& shape) const; |
| 90 | double calcFaceYAngle(dlib::full_object_detection& shape, double faceXAngle, double mouthForm) const; |
| 91 | double calcFaceZAngle(dlib::full_object_detection& shape) const; |
| 92 | |
| 93 | void populateDefaultConfig(void); |
| 94 | void parseConfig(std::string cfgPath); |
| 95 | void throwConfigError(std::string paramName, std::string expectedType, |
| 96 | std::string line, unsigned int lineNum); |
| 97 | |
| 98 | |
| 99 | std::deque<double> m_leftEyeOpenness; |
| 100 | std::deque<double> m_rightEyeOpenness; |
| 101 | |
| 102 | std::deque<double> m_mouthOpenness; |
| 103 | std::deque<double> m_mouthForm; |
| 104 | |
| 105 | std::deque<double> m_faceXAngle; |
| 106 | std::deque<double> m_faceYAngle; |
| 107 | std::deque<double> m_faceZAngle; |
| 108 | |
| 109 | struct Config |
| 110 | { |
| 111 | int cvVideoCaptureId; |
| 112 | std::string predictorPath; |
| 113 | double faceYAngleCorrection; |
| 114 | double eyeSmileEyeOpenThreshold; |
| 115 | double eyeSmileMouthFormThreshold; |
| 116 | double eyeSmileMouthOpenThreshold; |
| 117 | bool showWebcamVideo; |
| 118 | bool renderLandmarksOnVideo; |
| 119 | bool lateralInversion; |
| 120 | std::size_t faceXAngleNumTaps; |
| 121 | std::size_t faceYAngleNumTaps; |
| 122 | std::size_t faceZAngleNumTaps; |
| 123 | std::size_t mouthFormNumTaps; |
| 124 | std::size_t mouthOpenNumTaps; |
| 125 | std::size_t leftEyeOpenNumTaps; |
| 126 | std::size_t rightEyeOpenNumTaps; |
| 127 | int cvWaitKeyMs; |
| 128 | double eyeClosedThreshold; |
| 129 | double eyeOpenThreshold; |
| 130 | double mouthNormalThreshold; |
| 131 | double mouthSmileThreshold; |
| 132 | double mouthClosedThreshold; |
| 133 | double mouthOpenThreshold; |
| 134 | double mouthOpenLaughCorrection; |
| 135 | double faceYAngleXRotCorrection; |
| 136 | double faceYAngleSmileCorrection; |
| 137 | double faceYAngleZeroValue; |
| 138 | double faceYAngleUpThreshold; |
| 139 | double faceYAngleDownThreshold; |
| 140 | } m_cfg; |
| 141 | }; |
| 142 | |
| 143 | #endif |
| 144 | |