| 154 | // return the model meanshape aligned to both eyes (mouth is not avail) |
| 155 | |
| 156 | static Shape AlignMeanShapeToBothEyesEstMouth( |
| 157 | const DetectorParameter& detpar, // in |
| 158 | const Shape& meanshape) // in |
| 159 | { |
| 160 | // .48 was tested to give slightly better worse case results than .50 |
| 161 | static const double EYEMOUTH_TO_FACERECT_RATIO = .48; |
| 162 | |
| 163 | if (trace_g) |
| 164 | lprintf("AlignToBothEyesEstMouth "); |
| 165 | |
| 166 | CV_Assert(NSIZE(meanshape) > 0 && PointUsed(meanshape, 0)); |
| 167 | CV_Assert(Valid(detpar.lex)); |
| 168 | CV_Assert(Valid(detpar.rex)); |
| 169 | |
| 170 | // estimate the mouth's position |
| 171 | |
| 172 | double x_eyemid = 0; |
| 173 | switch (detpar.eyaw) |
| 174 | { |
| 175 | case EYAW00: // mid point |
| 176 | x_eyemid = .50 * detpar.lex + .50 * detpar.rex; |
| 177 | break; |
| 178 | // TODO The constants below have not been empirically optimized. |
| 179 | case EYAW_45: // closer to left eye |
| 180 | x_eyemid = .30 * detpar.lex + .70 * detpar.rex; |
| 181 | break; |
| 182 | case EYAW_22: // closer to left eye |
| 183 | x_eyemid = .30 * detpar.lex + .70 * detpar.rex; |
| 184 | break; |
| 185 | case EYAW22: // closer to right eye |
| 186 | x_eyemid = .30 * detpar.lex + .70 * detpar.rex; |
| 187 | break; |
| 188 | case EYAW45: // closer to right eye |
| 189 | x_eyemid = .30 * detpar.lex + .70 * detpar.rex; |
| 190 | break; |
| 191 | default: |
| 192 | Err("AlignMeanShapeToBothEyesEstMouth: Invalid eyaw %d", detpar.eyaw); |
| 193 | break; |
| 194 | } |
| 195 | const double y_eyemid = (detpar.ley + detpar.rey) / 2; |
| 196 | |
| 197 | Shape mean_tri(3, 2), det_tri(3, 2); // triangle of eyes and mouth |
| 198 | |
| 199 | const Shape shape17(Shape17(meanshape)); |
| 200 | |
| 201 | mean_tri(0, IX) = shape17(L17_LPupil, IX); // left eye |
| 202 | mean_tri(0, IY) = shape17(L17_LPupil, IY); |
| 203 | mean_tri(1, IX) = shape17(L17_RPupil, IX); // right eye |
| 204 | mean_tri(1, IY) = shape17(L17_RPupil, IY); |
| 205 | mean_tri(2, IX) = shape17(L17_CBotOfBotLip, IX); // mouth |
| 206 | mean_tri(2, IY) = shape17(L17_CBotOfBotLip, IY); |
| 207 | |
| 208 | det_tri(0, IX) = detpar.lex; // left eye |
| 209 | det_tri(0, IY) = detpar.ley; |
| 210 | det_tri(1, IX) = detpar.rex; // right eye |
| 211 | det_tri(1, IY) = detpar.rey; |
| 212 | det_tri(2, IX) = x_eyemid; // mouth |
| 213 | det_tri(2, IY) = y_eyemid + EYEMOUTH_TO_FACERECT_RATIO * detpar.width; |
no test coverage detected