| 摘要 |
PROBLEM TO BE SOLVED: To accurately recognize utterance state of respective participants in a simple composition.SOLUTION: A distorted circular image S including a face of respective participants in a convention are photographed by a wide-angle imaging apparatus 100 using a fisheye lens and stored to a storage unit 210. When an initial extraction condition for respective persons are set by a user, an image extraction and conversion unit 220 extracts respective person images, converts the images to planar regular images T and stores them to a storage unit 230. A face area recognition unit 250 recognizes a face area from respective planar regular images T and a lip vicinity area setting means 260 sets a lip vicinity area in the face area. A feature amount calculation unit 270 calculates the feature amount indicating brightness or color in the lip vicinity area and an utterance state recognition unit 280 determines utterance time for individual participants based on the time change in the feature amount. A convention image presentation unit 290 presents respective person images along with the utterance time on a display device 300. An extraction condition setting unit 240 sequentially carries out resetting of extraction conditions with the lips as the center based on the recognition result by the face area recognition unit 250. |
