+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation 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.
-//
-//M*/
-
-/****************************************************************************************\
- Contour-based face feature tracking
- The code was created by Tatiana Cherepanova (tata@sl.iae.nsk.su)
-\****************************************************************************************/
-
-#include "_cvaux.h"
-#include "_cvvectrack.h"
-
-#define _ASSERT assert
-#define NUM_FACE_ELEMENTS 3
-enum
-{
- MOUTH = 0,
- LEYE = 1,
- REYE = 2,
-};
-
-#define MAX_LAYERS 64
-
-const double pi = 3.1415926535;
-
-struct CvFaceTracker;
-struct CvTrackingRect;
-class CvFaceElement;
-
-void ThresholdingParam(IplImage *imgGray, int iNumLayers, int &iMinLevel, int &iMaxLevel, float &step, float& power, int iHistMin /*= HIST_MIN*/);
-int ChoiceTrackingFace3(CvFaceTracker* pTF, const int nElements, const CvFaceElement* big_face, CvTrackingRect* face, int& new_energy);
-int ChoiceTrackingFace2(CvFaceTracker* pTF, const int nElements, const CvFaceElement* big_face, CvTrackingRect* face, int& new_energy, int noel);
-inline int GetEnergy(CvTrackingRect** ppNew, const CvTrackingRect* pPrev, CvPoint* ptTempl, CvRect* rTempl);
-inline int GetEnergy2(CvTrackingRect** ppNew, const CvTrackingRect* pPrev, CvPoint* ptTempl, CvRect* rTempl, int* element);
-inline double CalculateTransformationLMS3_0( CvPoint* pTemplPoints, CvPoint* pSrcPoints);
-inline double CalculateTransformationLMS3( CvPoint* pTemplPoints,
- CvPoint* pSrcPoints,
- double* pdbAverageScale,
- double* pdbAverageRotate,
- double* pdbAverageShiftX,
- double* pdbAverageShiftY );
-
-struct CvTrackingRect
-{
- CvRect r;
- CvPoint ptCenter;
- int iColor;
- int iEnergy;
- int nRectsInThis;
- int nRectsOnLeft;
- int nRectsOnRight;
- int nRectsOnTop;
- int nRectsOnBottom;
- CvTrackingRect() { memset(this, 0, sizeof(CvTrackingRect)); };
- int Energy(const CvTrackingRect& prev)
- {
- int prev_color = 0 == prev.iColor ? iColor : prev.iColor;
- iEnergy = 1 * pow2(r.width - prev.r.width) +
- 1 * pow2(r.height - prev.r.height) +
- 1 * pow2(iColor - prev_color) / 4 +
- - 1 * nRectsInThis +
- - 0 * nRectsOnTop +
- + 0 * nRectsOnLeft +
- + 0 * nRectsOnRight +
- + 0 * nRectsOnBottom;
- return iEnergy;
- }
-};
-
-struct CvFaceTracker
-{
- CvTrackingRect face[NUM_FACE_ELEMENTS];
- int iTrackingFaceType;
- double dbRotateDelta;
- double dbRotateAngle;
- CvPoint ptRotate;
-
- CvPoint ptTempl[NUM_FACE_ELEMENTS];
- CvRect rTempl[NUM_FACE_ELEMENTS];
-
- IplImage* imgGray;
- IplImage* imgThresh;
- CvMemStorage* mstgContours;
- CvFaceTracker()
- {
- ptRotate.x = 0;
- ptRotate.y = 0;
- dbRotateDelta = 0;
- dbRotateAngle = 0;
- iTrackingFaceType = -1;
- imgThresh = NULL;
- imgGray = NULL;
- mstgContours = NULL;
- };
- ~CvFaceTracker()
- {
- if (NULL != imgGray)
- delete imgGray;
- if (NULL != imgThresh)
- delete imgThresh;
- if (NULL != mstgContours)
- cvReleaseMemStorage(&mstgContours);
- };
- int Init(CvRect* pRects, IplImage* imgGray)
- {
- for (int i = 0; i < NUM_FACE_ELEMENTS; i++)
- {
- face[i].r = pRects[i];
- face[i].ptCenter = Center(face[i].r);
- ptTempl[i] = face[i].ptCenter;
- rTempl[i] = face[i].r;
- }
- imgGray = cvCreateImage(cvSize(imgGray->width, imgGray->height), 8, 1);
- imgThresh = cvCreateImage(cvSize(imgGray->width, imgGray->height), 8, 1);
- mstgContours = cvCreateMemStorage();
- if ((NULL == imgGray) ||
- (NULL == imgThresh) ||
- (NULL == mstgContours))
- return FALSE;
- return TRUE;
- };
- int InitNextImage(IplImage* img)
- {
- CvSize sz = {img->width, img->height};
- ReallocImage(&imgGray, sz, 1);
- ReallocImage(&imgThresh, sz, 1);
- ptRotate = face[MOUTH].ptCenter;
- float m[6];
- CvMat mat = cvMat( 2, 3, CV_32FC1, m );
-
- if (NULL == imgGray || NULL == imgThresh)
- return FALSE;
-
- /*m[0] = (float)cos(-dbRotateAngle*CV_PI/180.);
- m[1] = (float)sin(-dbRotateAngle*CV_PI/180.);
- m[2] = (float)ptRotate.x;
- m[3] = -m[1];
- m[4] = m[0];
- m[5] = (float)ptRotate.y;*/
- cv2DRotationMatrix( cvPointTo32f(ptRotate), -dbRotateAngle, 1., &mat );
- cvWarpAffine( img, imgGray, &mat );
-
- if (NULL == mstgContours)
- mstgContours = cvCreateMemStorage();
- else
- cvClearMemStorage(mstgContours);
- if (NULL == mstgContours)
- return FALSE;
- return TRUE;
- }
-};
-
-class CvFaceElement
-{
-public:
- CvSeq* m_seqRects;
- CvMemStorage* m_mstgRects;
- CvRect m_rROI;
- CvTrackingRect m_trPrev;
- inline CvFaceElement()
- {
- m_seqRects = NULL;
- m_mstgRects = NULL;
- m_rROI.x = 0;
- m_rROI.y = 0;
- m_rROI.width = 0;
- m_rROI.height = 0;
- };
- inline int Init(const CvRect& roi, const CvTrackingRect& prev, CvMemStorage* mstg = NULL)
- {
- m_rROI = roi;
- m_trPrev = prev;
- if (NULL != mstg)
- m_mstgRects = mstg;
- if (NULL == m_mstgRects)
- return FALSE;
- if (NULL == m_seqRects)
- m_seqRects = cvCreateSeq(0, sizeof(CvSeq), sizeof(CvTrackingRect), m_mstgRects);
- else
- cvClearSeq(m_seqRects);
- if (NULL == m_seqRects)
- return FALSE;
- return TRUE;
- };
- void FindRects(IplImage* img, IplImage* thresh, int nLayers, int dMinSize);
-protected:
- void FindContours(IplImage* img, IplImage* thresh, int nLayers, int dMinSize);
- void MergeRects(int d);
- void Energy();
-}; //class CvFaceElement
-
-int CV_CDECL CompareEnergy(const void* el1, const void* el2, void*)
-{
- return ((CvTrackingRect*)el1)->iEnergy - ((CvTrackingRect*)el2)->iEnergy;
-}// int CV_CDECL CompareEnergy(const void* el1, const void* el2, void*)
-
-void CvFaceElement::FindRects(IplImage* img, IplImage* thresh, int nLayers, int dMinSize)
-{
- FindContours(img, thresh, nLayers, dMinSize / 4);
- if (0 == m_seqRects->total)
- return;
- Energy();
- cvSeqSort(m_seqRects, CompareEnergy, NULL);
- CvTrackingRect* pR = (CvTrackingRect*)cvGetSeqElem(m_seqRects, 0);
- if (m_seqRects->total < 32)
- {
- MergeRects(dMinSize / 8);
- Energy();
- cvSeqSort(m_seqRects, CompareEnergy, NULL);
- }
- pR = (CvTrackingRect*)cvGetSeqElem(m_seqRects, 0);
- if ((pR->iEnergy > 100 && m_seqRects->total < 32) || (m_seqRects->total < 16))
- {
- MergeRects(dMinSize / 4);
- Energy();
- cvSeqSort(m_seqRects, CompareEnergy, NULL);
- }
- pR = (CvTrackingRect*)cvGetSeqElem(m_seqRects, 0);
- if ((pR->iEnergy > 100 && m_seqRects->total < 16) || (pR->iEnergy > 200 && m_seqRects->total < 32))
- {
- MergeRects(dMinSize / 2);
- Energy();
- cvSeqSort(m_seqRects, CompareEnergy, NULL);
- }
-
-}// void CvFaceElement::FindRects(IplImage* img, IplImage* thresh, int nLayers, int dMinSize)
-
-void CvFaceElement::FindContours(IplImage* img, IplImage* thresh, int nLayers, int dMinSize)
-{
- CvSeq* seq;
- CvRect roi = m_rROI;
- Extend(roi, 1);
- cvSetImageROI(img, roi);
- cvSetImageROI(thresh, roi);
- // layers
- int colors[MAX_LAYERS] = {0};
- int iMinLevel = 0, iMaxLevel = 255;
- float step, power;
- ThresholdingParam(img, nLayers / 2, iMinLevel, iMaxLevel, step, power, 4);
- int iMinLevelPrev = iMinLevel;
- int iMaxLevelPrev = iMinLevel;
- if (m_trPrev.iColor != 0)
- {
- iMinLevelPrev = m_trPrev.iColor - nLayers / 2;
- iMaxLevelPrev = m_trPrev.iColor + nLayers / 2;
- }
- if (iMinLevelPrev < iMinLevel)
- {
- iMaxLevelPrev += iMinLevel - iMinLevelPrev;
- iMinLevelPrev = iMinLevel;
- }
- if (iMaxLevelPrev > iMaxLevel)
- {
- iMinLevelPrev -= iMaxLevelPrev - iMaxLevel;
- if (iMinLevelPrev < iMinLevel)
- iMinLevelPrev = iMinLevel;
- iMaxLevelPrev = iMaxLevel;
- }
- int n = nLayers;
- n -= (iMaxLevelPrev - iMinLevelPrev + 1) / 2;
- step = float(iMinLevelPrev - iMinLevel + iMaxLevel - iMaxLevelPrev) / float(n);
- int j = 0;
- float level;
- for (level = (float)iMinLevel; level < iMinLevelPrev && j < nLayers; level += step, j++)
- colors[j] = int(level + 0.5);
- for (level = (float)iMinLevelPrev; level < iMaxLevelPrev && j < nLayers; level += 2.0, j++)
- colors[j] = int(level + 0.5);
- for (level = (float)iMaxLevelPrev; level < iMaxLevel && j < nLayers; level += step, j++)
- colors[j] = int(level + 0.5);
- //
- for (int i = 0; i < nLayers; i++)
- {
- cvThreshold(img, thresh, colors[i], 255.0, CV_THRESH_BINARY);
- if (cvFindContours(thresh, m_mstgRects, &seq, sizeof(CvContour), CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE))
- {
- CvTrackingRect cr;
- for (CvSeq* external = seq; external; external = external->h_next)
- {
- cr.r = cvContourBoundingRect(external);
- Move(cr.r, roi.x, roi.y);
- if (RectInRect(cr.r, m_rROI) && cr.r.width > dMinSize && cr.r.height > dMinSize)
- {
- cr.ptCenter = Center(cr.r);
- cr.iColor = colors[i];
- cvSeqPush(m_seqRects, &cr);
- }
- for (CvSeq* internal = external->v_next; internal; internal = internal->h_next)
- {
- cr.r = cvContourBoundingRect(internal);
- Move(cr.r, roi.x, roi.y);
- if (RectInRect(cr.r, m_rROI) && cr.r.width > dMinSize && cr.r.height > dMinSize)
- {
- cr.ptCenter = Center(cr.r);
- cr.iColor = colors[i];
- cvSeqPush(m_seqRects, &cr);
- }
- }
- }
- cvClearSeq(seq);
- }
- }
- cvResetImageROI(img);
- cvResetImageROI(thresh);
-}//void CvFaceElement::FindContours(IplImage* img, IplImage* thresh, int nLayers)
-
-void CvFaceElement::MergeRects(int d)
-{
- int nRects = m_seqRects->total;
- CvSeqReader reader, reader2;
- cvStartReadSeq( m_seqRects, &reader );
- int i, j;
- for (i = 0; i < nRects; i++)
- {
- CvTrackingRect* pRect1 = (CvTrackingRect*)(reader.ptr);
- cvStartReadSeq( m_seqRects, &reader2 );
- cvSetSeqReaderPos(&reader2, i + 1);
- for (j = i + 1; j < nRects; j++)
- {
- CvTrackingRect* pRect2 = (CvTrackingRect*)(reader2.ptr);
- if (abs(pRect1->ptCenter.y - pRect2->ptCenter.y) < d &&
- abs(pRect1->r.height - pRect2->r.height) < d)
- {
- CvTrackingRect rNew;
- rNew.iColor = (pRect1->iColor + pRect2->iColor + 1) / 2;
- rNew.r.x = min(pRect1->r.x, pRect2->r.x);
- rNew.r.y = min(pRect1->r.y, pRect2->r.y);
- rNew.r.width = max(pRect1->r.x + pRect1->r.width, pRect2->r.x + pRect2->r.width) - rNew.r.x;
- rNew.r.height = min(pRect1->r.y + pRect1->r.height, pRect2->r.y + pRect2->r.height) - rNew.r.y;
- if (rNew.r != pRect1->r && rNew.r != pRect2->r)
- {
- rNew.ptCenter = Center(rNew.r);
- cvSeqPush(m_seqRects, &rNew);
- }
- }
- CV_NEXT_SEQ_ELEM( sizeof(CvTrackingRect), reader2 );
- }
- CV_NEXT_SEQ_ELEM( sizeof(CvTrackingRect), reader );
- }
- // delete equal rects
- for (i = 0; i < m_seqRects->total; i++)
- {
- CvTrackingRect* pRect1 = (CvTrackingRect*)cvGetSeqElem(m_seqRects, i);
- int j_begin = i + 1;
- for (j = j_begin; j < m_seqRects->total;)
- {
- CvTrackingRect* pRect2 = (CvTrackingRect*)cvGetSeqElem(m_seqRects, j);
- if (pRect1->r == pRect2->r)
- cvSeqRemove(m_seqRects, j);
- else
- j++;
- }
- }
-
-}//void CvFaceElement::MergeRects(int d)
-
-void CvFaceElement::Energy()
-{
- CvSeqReader reader, reader2;
- cvStartReadSeq( m_seqRects, &reader );
- for (int i = 0; i < m_seqRects->total; i++)
- {
- CvTrackingRect* pRect = (CvTrackingRect*)(reader.ptr);
- // outside and inside rects
- cvStartReadSeq( m_seqRects, &reader2 );
- for (int j = 0; j < m_seqRects->total; j++)
- {
- CvTrackingRect* pRect2 = (CvTrackingRect*)(reader2.ptr);
- if (i != j)
- {
- if (RectInRect(pRect2->r, pRect->r))
- pRect->nRectsInThis ++;
- else if (pRect2->r.y + pRect2->r.height <= pRect->r.y)
- pRect->nRectsOnTop ++;
- else if (pRect2->r.y >= pRect->r.y + pRect->r.height)
- pRect->nRectsOnBottom ++;
- else if (pRect2->r.x + pRect2->r.width <= pRect->r.x)
- pRect->nRectsOnLeft ++;
- else if (pRect2->r.x >= pRect->r.x + pRect->r.width)
- pRect->nRectsOnRight ++;
- }
- CV_NEXT_SEQ_ELEM( sizeof(CvTrackingRect), reader2 );
- }
- // energy
- pRect->Energy(m_trPrev);
- CV_NEXT_SEQ_ELEM( sizeof(CvTrackingRect), reader );
- }
-}//void CvFaceElement::Energy()
-
-CV_IMPL CvFaceTracker*
-cvInitFaceTracker(CvFaceTracker* pFaceTracker, const IplImage* imgGray, CvRect* pRects, int nRects)
-{
- _ASSERT(NULL != imgGray);
- _ASSERT(NULL != pRects);
- _ASSERT(nRects >= NUM_FACE_ELEMENTS);
- if ((NULL == imgGray) ||
- (NULL == pRects) ||
- (nRects < NUM_FACE_ELEMENTS))
- return NULL;
-
- int new_face = FALSE;
- CvFaceTracker* pFace = pFaceTracker;
- if (NULL == pFace)
- {
- pFace = new CvFaceTracker;
- if (NULL == pFace)
- return NULL;
- new_face = TRUE;
- }
- pFace->Init(pRects, (IplImage*)imgGray);
- return pFace;
-}//CvFaceTracker* InitFaceTracker(IplImage* imgGray, CvRect* pRects, int nRects)
-
-CV_IMPL void
-cvReleaseFaceTracker(CvFaceTracker** ppFaceTracker)
-{
- if (NULL == *ppFaceTracker)
- return;
- delete *ppFaceTracker;
- *ppFaceTracker = NULL;
-}//void ReleaseFaceTracker(CvFaceTracker** ppFaceTracker)
-
-
-CV_IMPL int
-cvTrackFace(CvFaceTracker* pFaceTracker, IplImage* imgGray, CvRect* pRects, int nRects, CvPoint* ptRotate, double* dbAngleRotate)
-{
- _ASSERT(NULL != pFaceTracker);
- _ASSERT(NULL != imgGray);
- _ASSERT(NULL != pRects && nRects >= NUM_FACE_ELEMENTS);
- if ((NULL == pFaceTracker) ||
- (NULL == imgGray))
- return FALSE;
- pFaceTracker->InitNextImage(imgGray);
- *ptRotate = pFaceTracker->ptRotate;
- *dbAngleRotate = pFaceTracker->dbRotateAngle;
-
- int nElements = 16;
- double dx = pFaceTracker->face[LEYE].ptCenter.x - pFaceTracker->face[REYE].ptCenter.x;
- double dy = pFaceTracker->face[LEYE].ptCenter.y - pFaceTracker->face[REYE].ptCenter.y;
- double d_eyes = sqrt(dx*dx + dy*dy);
- int d = cvRound(0.25 * d_eyes);
- int dMinSize = d;
- int nRestarts = 0;
-
- int elem;
-
- CvFaceElement big_face[NUM_FACE_ELEMENTS];
-START:
- // init
- for (elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- {
- CvRect r = pFaceTracker->face[elem].r;
- Extend(r, d);
- if (r.width < 4*d)
- {
- r.x -= (4*d - r.width) / 2;
- r.width += 4*d - r.width;
- }
- if (r.height < 3*d)
- {
- r.y -= (3*d - r.height) / 2;
- r.height += 3*d - r.height;
- }
- if (r.x < 1)
- r.x = 1;
- if (r.y < 1)
- r.y = 1;
- if (r.x + r.width > pFaceTracker->imgGray->width - 2)
- r.width = pFaceTracker->imgGray->width - 2 - r.x;
- if (r.y + r.height > pFaceTracker->imgGray->height - 2)
- r.height = pFaceTracker->imgGray->height - 2 - r.y;
- if (!big_face[elem].Init(r, pFaceTracker->face[elem], pFaceTracker->mstgContours))
- return FALSE;
- }
- // find contours
- for (elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- big_face[elem].FindRects(pFaceTracker->imgGray, pFaceTracker->imgThresh, 32, dMinSize);
- // candidats
- CvTrackingRect new_face[NUM_FACE_ELEMENTS];
- int new_energy = 0;
- int found = ChoiceTrackingFace3(pFaceTracker, nElements, big_face, new_face, new_energy);
- int restart = FALSE;
- int find2 = FALSE;
- int noel = -1;
- if (found)
- {
- if (new_energy > 100000 && -1 != pFaceTracker->iTrackingFaceType)
- find2 = TRUE;
- else if (new_energy > 150000)
- {
- int elements = 0;
- for (int el = 0; el < NUM_FACE_ELEMENTS; el++)
- {
- if (big_face[el].m_seqRects->total > 16 || (big_face[el].m_seqRects->total > 8 && new_face[el].iEnergy < 100))
- elements++;
- else
- noel = el;
- }
- if (2 == elements)
- find2 = TRUE;
- else
- restart = TRUE;
- }
- }
- else
- {
- if (-1 != pFaceTracker->iTrackingFaceType)
- find2 = TRUE;
- else
- restart = TRUE;
- }
-RESTART:
- if (restart)
- {
- if (nRestarts++ < 2)
- {
- d = d + d/4;
- goto START;
- }
- }
- else if (find2)
- {
- if (-1 != pFaceTracker->iTrackingFaceType)
- noel = pFaceTracker->iTrackingFaceType;
- int found2 = ChoiceTrackingFace2(pFaceTracker, nElements, big_face, new_face, new_energy, noel);
- if (found2 && new_energy < 100000)
- {
- pFaceTracker->iTrackingFaceType = noel;
- found = TRUE;
- }
- else
- {
- restart = TRUE;
- goto RESTART;
- }
- }
-
- if (found)
- {
- // angle by mouth & eyes
- double vx_prev = double(pFaceTracker->face[LEYE].ptCenter.x + pFaceTracker->face[REYE].ptCenter.x) / 2.0 - pFaceTracker->face[MOUTH].ptCenter.x;
- double vy_prev = double(pFaceTracker->face[LEYE].ptCenter.y + pFaceTracker->face[REYE].ptCenter.y) / 2.0 - pFaceTracker->face[MOUTH].ptCenter.y;
- double vx_prev1 = vx_prev * cos(pFaceTracker->dbRotateDelta) - vy_prev * sin(pFaceTracker->dbRotateDelta);
- double vy_prev1 = vx_prev * sin(pFaceTracker->dbRotateDelta) + vy_prev * cos(pFaceTracker->dbRotateDelta);
- vx_prev = vx_prev1;
- vy_prev = vy_prev1;
- for (elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- pFaceTracker->face[elem] = new_face[elem];
- double vx = double(pFaceTracker->face[LEYE].ptCenter.x + pFaceTracker->face[REYE].ptCenter.x) / 2.0 - pFaceTracker->face[MOUTH].ptCenter.x;
- double vy = double(pFaceTracker->face[LEYE].ptCenter.y + pFaceTracker->face[REYE].ptCenter.y) / 2.0 - pFaceTracker->face[MOUTH].ptCenter.y;
- pFaceTracker->dbRotateDelta = 0;
- double n1_n2 = (vx * vx + vy * vy) * (vx_prev * vx_prev + vy_prev * vy_prev);
- if (n1_n2 != 0)
- pFaceTracker->dbRotateDelta = asin((vx * vy_prev - vx_prev * vy) / sqrt(n1_n2));
- pFaceTracker->dbRotateAngle -= pFaceTracker->dbRotateDelta;
- }
- else
- {
- pFaceTracker->dbRotateDelta = 0;
- pFaceTracker->dbRotateAngle = 0;
- }
- if ((pFaceTracker->dbRotateAngle >= pi/2 && pFaceTracker->dbRotateAngle > 0) ||
- (pFaceTracker->dbRotateAngle <= -pi/2 && pFaceTracker->dbRotateAngle < 0))
- {
- pFaceTracker->dbRotateDelta = 0;
- pFaceTracker->dbRotateAngle = 0;
- found = FALSE;
- }
- if (found)
- {
- for (int i = 0; i < NUM_FACE_ELEMENTS && i < nRects; i++)
- pRects[i] = pFaceTracker->face[i].r;
- }
- return found;
-}//int FindFaceTracker(CvFaceTracker* pFaceTracker, IplImage* imgGray, CvRect* pRects, int nRects, CvPoint& ptRotate, double& dbAngleRotate)
-
-void ThresholdingParam(IplImage *imgGray, int iNumLayers, int &iMinLevel, int &iMaxLevel, float &step, float& power, int iHistMin /*= HIST_MIN*/)
-{
- _ASSERT(imgGray != NULL);
- _ASSERT(imgGray->nChannels == 1);
- int i, j;
- // create histogram
- int histImg[256] = {0};
- uchar* buffImg = (uchar*)imgGray->imageData;
- CvRect rROI = cvGetImageROI(imgGray);
- buffImg += rROI.y * imgGray->widthStep + rROI.x;
- for (j = 0; j < rROI.height; j++)
- {
- for (i = 0; i < rROI.width; i++)
- histImg[buffImg[i]] ++;
- buffImg += imgGray->widthStep;
- }
- // params
- for (i = 0; i < 256; i++)
- {
- if (histImg[i] > iHistMin)
- break;
- }
- iMinLevel = i;
- for (i = 255; i >= 0; i--)
- {
- if (histImg[i] > iHistMin)
- break;
- }
- iMaxLevel = i;
- if (iMaxLevel <= iMinLevel)
- {
- iMaxLevel = 255;
- iMinLevel = 0;
- }
- // power
- double black = 1;
- double white = 1;
- for (i = iMinLevel; i < (iMinLevel + iMaxLevel) / 2; i++)
- black += histImg[i];
- for (i = (iMinLevel + iMaxLevel) / 2; i < iMaxLevel; i++)
- white += histImg[i];
- power = float(black) / float(2 * white);
- //
- step = float(iMaxLevel - iMinLevel) / float(iNumLayers);
- if (step < 1.0)
- step = 1.0;
-}// void ThresholdingParam(IplImage *imgGray, int iNumLayers, int &iMinLevel, int &iMaxLevel, int &iStep)
-
-int ChoiceTrackingFace3(CvFaceTracker* pTF, const int nElements, const CvFaceElement* big_face, CvTrackingRect* face, int& new_energy)
-{
- CvTrackingRect* curr_face[NUM_FACE_ELEMENTS] = {NULL};
- CvTrackingRect* new_face[NUM_FACE_ELEMENTS] = {NULL};
- new_energy = 0x7fffffff;
- int curr_energy = 0x7fffffff;
- int found = FALSE;
- int N = 0;
- CvSeqReader reader_m, reader_l, reader_r;
- cvStartReadSeq( big_face[MOUTH].m_seqRects, &reader_m );
- for (int i_mouth = 0; i_mouth < big_face[MOUTH].m_seqRects->total && i_mouth < nElements; i_mouth++)
- {
- curr_face[MOUTH] = (CvTrackingRect*)(reader_m.ptr);
- cvStartReadSeq( big_face[LEYE].m_seqRects, &reader_l );
- for (int i_left = 0; i_left < big_face[LEYE].m_seqRects->total && i_left < nElements; i_left++)
- {
- curr_face[LEYE] = (CvTrackingRect*)(reader_l.ptr);
- if (curr_face[LEYE]->r.y + curr_face[LEYE]->r.height < curr_face[MOUTH]->r.y)
- {
- cvStartReadSeq( big_face[REYE].m_seqRects, &reader_r );
- for (int i_right = 0; i_right < big_face[REYE].m_seqRects->total && i_right < nElements; i_right++)
- {
- curr_face[REYE] = (CvTrackingRect*)(reader_r.ptr);
- if (curr_face[REYE]->r.y + curr_face[REYE]->r.height < curr_face[MOUTH]->r.y &&
- curr_face[REYE]->r.x > curr_face[LEYE]->r.x + curr_face[LEYE]->r.width)
- {
- curr_energy = GetEnergy(curr_face, pTF->face, pTF->ptTempl, pTF->rTempl);
- if (curr_energy < new_energy)
- {
- for (int elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- new_face[elem] = curr_face[elem];
- new_energy = curr_energy;
- found = TRUE;
- }
- N++;
- }
- }
- }
- }
- }
- if (found)
- {
- for (int elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- face[elem] = *(new_face[elem]);
- }
- return found;
-} // int ChoiceTrackingFace3(const CvTrackingRect* tr_face, CvTrackingRect* new_face, int& new_energy)
-
-int ChoiceTrackingFace2(CvFaceTracker* pTF, const int nElements, const CvFaceElement* big_face, CvTrackingRect* face, int& new_energy, int noel)
-{
- int element[NUM_FACE_ELEMENTS];
- for (int i = 0, elem = 0; i < NUM_FACE_ELEMENTS; i++)
- {
- if (i != noel)
- {
- element[elem] = i;
- elem ++;
- }
- else
- element[2] = i;
- }
- CvTrackingRect* curr_face[NUM_FACE_ELEMENTS] = {NULL};
- CvTrackingRect* new_face[NUM_FACE_ELEMENTS] = {NULL};
- new_energy = 0x7fffffff;
- int curr_energy = 0x7fffffff;
- int found = FALSE;
- int N = 0;
- CvSeqReader reader0, reader1;
- cvStartReadSeq( big_face[element[0]].m_seqRects, &reader0 );
- for (int i0 = 0; i0 < big_face[element[0]].m_seqRects->total && i0 < nElements; i0++)
- {
- curr_face[element[0]] = (CvTrackingRect*)(reader0.ptr);
- cvStartReadSeq( big_face[element[1]].m_seqRects, &reader1 );
- for (int i1 = 0; i1 < big_face[element[1]].m_seqRects->total && i1 < nElements; i1++)
- {
- curr_face[element[1]] = (CvTrackingRect*)(reader1.ptr);
- curr_energy = GetEnergy2(curr_face, pTF->face, pTF->ptTempl, pTF->rTempl, element);
- if (curr_energy < new_energy)
- {
- for (int elem = 0; elem < NUM_FACE_ELEMENTS; elem++)
- new_face[elem] = curr_face[elem];
- new_energy = curr_energy;
- found = TRUE;
- }
- N++;
- }
- }
- if (found)
- {
- face[element[0]] = *(new_face[element[0]]);
- face[element[1]] = *(new_face[element[1]]);
- // 3 element find by template
- CvPoint templ_v01 = {pTF->ptTempl[element[1]].x - pTF->ptTempl[element[0]].x, pTF->ptTempl[element[1]].y - pTF->ptTempl[element[0]].y};
- CvPoint templ_v02 = {pTF->ptTempl[element[2]].x - pTF->ptTempl[element[0]].x, pTF->ptTempl[element[2]].y - pTF->ptTempl[element[0]].y};
- CvPoint prev_v01 = {pTF->face[element[1]].ptCenter.x - pTF->face[element[0]].ptCenter.x, pTF->face[element[1]].ptCenter.y - pTF->face[element[0]].ptCenter.y};
- CvPoint prev_v02 = {pTF->face[element[2]].ptCenter.x - pTF->face[element[0]].ptCenter.x, pTF->face[element[2]].ptCenter.y - pTF->face[element[0]].ptCenter.y};
- CvPoint new_v01 = {new_face[element[1]]->ptCenter.x - new_face[element[0]]->ptCenter.x, new_face[element[1]]->ptCenter.y - new_face[element[0]]->ptCenter.y};
- double templ_d01 = sqrt((double)templ_v01.x*templ_v01.x + templ_v01.y*templ_v01.y);
- double templ_d02 = sqrt((double)templ_v02.x*templ_v02.x + templ_v02.y*templ_v02.y);
- double prev_d01 = sqrt((double)prev_v01.x*prev_v01.x + prev_v01.y*prev_v01.y);
- double prev_d02 = sqrt((double)prev_v02.x*prev_v02.x + prev_v02.y*prev_v02.y);
- double new_d01 = sqrt((double)new_v01.x*new_v01.x + new_v01.y*new_v01.y);
- double scale = templ_d01 / new_d01;
- double new_d02 = templ_d02 / scale;
- double sin_a = double(prev_v01.x * prev_v02.y - prev_v01.y * prev_v02.x) / (prev_d01 * prev_d02);
- double cos_a = cos(asin(sin_a));
- double x = double(new_v01.x) * cos_a - double(new_v01.y) * sin_a;
- double y = double(new_v01.x) * sin_a + double(new_v01.y) * cos_a;
- x = x * new_d02 / new_d01;
- y = y * new_d02 / new_d01;
- CvPoint new_v02 = {int(x + 0.5), int(y + 0.5)};
- face[element[2]].iColor = 0;
- face[element[2]].iEnergy = 0;
- face[element[2]].nRectsInThis = 0;
- face[element[2]].nRectsOnBottom = 0;
- face[element[2]].nRectsOnLeft = 0;
- face[element[2]].nRectsOnRight = 0;
- face[element[2]].nRectsOnTop = 0;
- face[element[2]].ptCenter.x = new_v02.x + new_face[element[0]]->ptCenter.x;
- face[element[2]].ptCenter.y = new_v02.y + new_face[element[0]]->ptCenter.y;
- face[element[2]].r.width = int(double(pTF->rTempl[element[2]].width) / (scale) + 0.5);
- face[element[2]].r.height = int(double(pTF->rTempl[element[2]].height) / (scale) + 0.5);
- face[element[2]].r.x = face[element[2]].ptCenter.x - (face[element[2]].r.width + 1) / 2;
- face[element[2]].r.y = face[element[2]].ptCenter.y - (face[element[2]].r.height + 1) / 2;
- _ASSERT(face[LEYE].r.x + face[LEYE].r.width <= face[REYE].r.x);
- }
- return found;
-} // int ChoiceTrackingFace3(const CvTrackingRect* tr_face, CvTrackingRect* new_face, int& new_energy)
-
-inline int GetEnergy(CvTrackingRect** ppNew, const CvTrackingRect* pPrev, CvPoint* ptTempl, CvRect* rTempl)
-{
- int energy = 0;
- CvPoint ptNew[NUM_FACE_ELEMENTS];
- CvPoint ptPrev[NUM_FACE_ELEMENTS];
- for (int i = 0; i < NUM_FACE_ELEMENTS; i++)
- {
- ptNew[i] = ppNew[i]->ptCenter;
- ptPrev[i] = pPrev[i].ptCenter;
- energy += ppNew[i]->iEnergy - 2 * ppNew[i]->nRectsInThis;
- }
- double dx = 0, dy = 0, scale = 1, rotate = 0;
- double e_templ = CalculateTransformationLMS3(ptTempl, ptNew, &scale, &rotate, &dx, &dy);
- double e_prev = CalculateTransformationLMS3_0(ptPrev, ptNew);
- double w_eye = double(ppNew[LEYE]->r.width + ppNew[REYE]->r.width) * scale / 2.0;
- double h_eye = double(ppNew[LEYE]->r.height + ppNew[REYE]->r.height) * scale / 2.0;
- double w_mouth = double(ppNew[MOUTH]->r.width) * scale;
- double h_mouth = double(ppNew[MOUTH]->r.height) * scale;
- energy +=
- int(512.0 * (e_prev + 16.0 * e_templ)) +
- 4 * pow2(ppNew[LEYE]->r.width - ppNew[REYE]->r.width) +
- 4 * pow2(ppNew[LEYE]->r.height - ppNew[REYE]->r.height) +
- 4 * (int)pow(w_eye - double(rTempl[LEYE].width + rTempl[REYE].width) / 2.0, 2) +
- 2 * (int)pow(h_eye - double(rTempl[LEYE].height + rTempl[REYE].height) / 2.0, 2) +
- 1 * (int)pow(w_mouth - double(rTempl[MOUTH].width), 2) +
- 1 * (int)pow(h_mouth - double(rTempl[MOUTH].height), 2) +
- 0;
- return energy;
-}
-
-inline int GetEnergy2(CvTrackingRect** ppNew, const CvTrackingRect* pPrev, CvPoint* ptTempl, CvRect* rTempl, int* element)
-{
- CvPoint new_v = {ppNew[element[0]]->ptCenter.x - ppNew[element[1]]->ptCenter.x,
- ppNew[element[0]]->ptCenter.y - ppNew[element[1]]->ptCenter.y};
- CvPoint prev_v = {pPrev[element[0]].ptCenter.x - pPrev[element[1]].ptCenter.x,
- pPrev[element[0]].ptCenter.y - pPrev[element[1]].ptCenter.y};
- double new_d = sqrt((double)new_v.x*new_v.x + new_v.y*new_v.y);
- double prev_d = sqrt((double)prev_v.x*prev_v.x + prev_v.y*prev_v.y);
- double dx = ptTempl[element[0]].x - ptTempl[element[1]].x;
- double dy = ptTempl[element[0]].y - ptTempl[element[1]].y;
- double templ_d = sqrt(dx*dx + dy*dy);
- double scale_templ = new_d / templ_d;
- double w0 = (double)ppNew[element[0]]->r.width * scale_templ;
- double h0 = (double)ppNew[element[0]]->r.height * scale_templ;
- double w1 = (double)ppNew[element[1]]->r.width * scale_templ;
- double h1 = (double)ppNew[element[1]]->r.height * scale_templ;
-
- int energy = ppNew[element[0]]->iEnergy + ppNew[element[1]]->iEnergy +
- - 2 * (ppNew[element[0]]->nRectsInThis - ppNew[element[1]]->nRectsInThis) +
- (int)pow(w0 - (double)rTempl[element[0]].width, 2) +
- (int)pow(h0 - (double)rTempl[element[0]].height, 2) +
- (int)pow(w1 - (double)rTempl[element[1]].width, 2) +
- (int)pow(h1 - (double)rTempl[element[1]].height, 2) +
- (int)pow(new_d - prev_d, 2) +
- 0;
-
- return energy;
-}
-
-inline double CalculateTransformationLMS3( CvPoint* pTemplPoints,
- CvPoint* pSrcPoints,
- double* pdbAverageScale,
- double* pdbAverageRotate,
- double* pdbAverageShiftX,
- double* pdbAverageShiftY )
-{
-// double WS = 0;
- double dbAverageScale = 1;
- double dbAverageRotate = 0;
- double dbAverageShiftX = 0;
- double dbAverageShiftY = 0;
- double dbLMS = 0;
-
- _ASSERT( NULL != pTemplPoints);
- _ASSERT( NULL != pSrcPoints);
-
- double dbXt = double(pTemplPoints[0].x + pTemplPoints[1].x + pTemplPoints[2].x) / 3.0;
- double dbYt = double(pTemplPoints[0].y + pTemplPoints[1].y + pTemplPoints[2].y ) / 3.0;
- double dbXs = double(pSrcPoints[0].x + pSrcPoints[1].x + pSrcPoints[2].x) / 3.0;
- double dbYs = double(pSrcPoints[0].y + pSrcPoints[1].y + pSrcPoints[2].y) / 3.0;
-
- double dbXtXt = double(pow2(pTemplPoints[0].x) + pow2(pTemplPoints[1].x) + pow2(pTemplPoints[2].x)) / 3.0;
- double dbYtYt = double(pow2(pTemplPoints[0].y) + pow2(pTemplPoints[1].y) + pow2(pTemplPoints[2].y)) / 3.0;
-
- double dbXsXs = double(pow2(pSrcPoints[0].x) + pow2(pSrcPoints[1].x) + pow2(pSrcPoints[2].x)) / 3.0;
- double dbYsYs = double(pow2(pSrcPoints[0].y) + pow2(pSrcPoints[1].y) + pow2(pSrcPoints[2].y)) / 3.0;
-
- double dbXtXs = double(pTemplPoints[0].x * pSrcPoints[0].x +
- pTemplPoints[1].x * pSrcPoints[1].x +
- pTemplPoints[2].x * pSrcPoints[2].x) / 3.0;
- double dbYtYs = double(pTemplPoints[0].y * pSrcPoints[0].y +
- pTemplPoints[1].y * pSrcPoints[1].y +
- pTemplPoints[2].y * pSrcPoints[2].y) / 3.0;
-
- double dbXtYs = double(pTemplPoints[0].x * pSrcPoints[0].y +
- pTemplPoints[1].x * pSrcPoints[1].y +
- pTemplPoints[2].x * pSrcPoints[2].y) / 3.0;
- double dbYtXs = double(pTemplPoints[0].y * pSrcPoints[0].x +
- pTemplPoints[1].y * pSrcPoints[1].x +
- pTemplPoints[2].y * pSrcPoints[2].x ) / 3.0;
-
- dbXtXt -= dbXt * dbXt;
- dbYtYt -= dbYt * dbYt;
-
- dbXsXs -= dbXs * dbXs;
- dbYsYs -= dbYs * dbYs;
-
- dbXtXs -= dbXt * dbXs;
- dbYtYs -= dbYt * dbYs;
-
- dbXtYs -= dbXt * dbYs;
- dbYtXs -= dbYt * dbXs;
-
- dbAverageRotate = atan2( dbXtYs - dbYtXs, dbXtXs + dbYtYs );
-
- double cosR = cos(dbAverageRotate);
- double sinR = sin(dbAverageRotate);
- double del = dbXsXs + dbYsYs;
- if( del != 0 )
- {
- dbAverageScale = (double(dbXtXs + dbYtYs) * cosR + double(dbXtYs - dbYtXs) * sinR) / del;
- dbLMS = dbXtXt + dbYtYt - ((double)pow(dbXtXs + dbYtYs,2) + (double)pow(dbXtYs - dbYtXs,2)) / del;
- }
-
- dbAverageShiftX = double(dbXt) - dbAverageScale * (double(dbXs) * cosR + double(dbYs) * sinR);
- dbAverageShiftY = double(dbYt) - dbAverageScale * (double(dbYs) * cosR - double(dbXs) * sinR);
-
- if( pdbAverageScale != NULL ) *pdbAverageScale = dbAverageScale;
- if( pdbAverageRotate != NULL ) *pdbAverageRotate = dbAverageRotate;
- if( pdbAverageShiftX != NULL ) *pdbAverageShiftX = dbAverageShiftX;
- if( pdbAverageShiftY != NULL ) *pdbAverageShiftY = dbAverageShiftY;
-
- _ASSERT(dbLMS >= 0);
- return dbLMS;
-}
-
-inline double CalculateTransformationLMS3_0( CvPoint* pTemplPoints, CvPoint* pSrcPoints)
-{
- double dbLMS = 0;
-
- _ASSERT( NULL != pTemplPoints);
- _ASSERT( NULL != pSrcPoints);
-
- double dbXt = double(pTemplPoints[0].x + pTemplPoints[1].x + pTemplPoints[2].x) / 3.0;
- double dbYt = double(pTemplPoints[0].y + pTemplPoints[1].y + pTemplPoints[2].y ) / 3.0;
- double dbXs = double(pSrcPoints[0].x + pSrcPoints[1].x + pSrcPoints[2].x) / 3.0;
- double dbYs = double(pSrcPoints[0].y + pSrcPoints[1].y + pSrcPoints[2].y) / 3.0;
-
- double dbXtXt = double(pow2(pTemplPoints[0].x) + pow2(pTemplPoints[1].x) + pow2(pTemplPoints[2].x)) / 3.0;
- double dbYtYt = double(pow2(pTemplPoints[0].y) + pow2(pTemplPoints[1].y) + pow2(pTemplPoints[2].y)) / 3.0;
-
- double dbXsXs = double(pow2(pSrcPoints[0].x) + pow2(pSrcPoints[1].x) + pow2(pSrcPoints[2].x)) / 3.0;
- double dbYsYs = double(pow2(pSrcPoints[0].y) + pow2(pSrcPoints[1].y) + pow2(pSrcPoints[2].y)) / 3.0;
-
- double dbXtXs = double(pTemplPoints[0].x * pSrcPoints[0].x +
- pTemplPoints[1].x * pSrcPoints[1].x +
- pTemplPoints[2].x * pSrcPoints[2].x) / 3.0;
- double dbYtYs = double(pTemplPoints[0].y * pSrcPoints[0].y +
- pTemplPoints[1].y * pSrcPoints[1].y +
- pTemplPoints[2].y * pSrcPoints[2].y) / 3.0;
-
- double dbXtYs = double(pTemplPoints[0].x * pSrcPoints[0].y +
- pTemplPoints[1].x * pSrcPoints[1].y +
- pTemplPoints[2].x * pSrcPoints[2].y) / 3.0;
- double dbYtXs = double(pTemplPoints[0].y * pSrcPoints[0].x +
- pTemplPoints[1].y * pSrcPoints[1].x +
- pTemplPoints[2].y * pSrcPoints[2].x ) / 3.0;
-
- dbXtXt -= dbXt * dbXt;
- dbYtYt -= dbYt * dbYt;
-
- dbXsXs -= dbXs * dbXs;
- dbYsYs -= dbYs * dbYs;
-
- dbXtXs -= dbXt * dbXs;
- dbYtYs -= dbYt * dbYs;
-
- dbXtYs -= dbXt * dbYs;
- dbYtXs -= dbYt * dbXs;
-
- double del = dbXsXs + dbYsYs;
- if( del != 0 )
- dbLMS = dbXtXt + dbYtYt - ((double)pow(dbXtXs + dbYtYs,2) + (double)pow(dbXtYs - dbYtXs,2)) / del;
- return dbLMS;
-}
-
projects / opencv / blobdiff