Senechal, Thibaud, Daniel McDuff, and Rana Kaliouby. "Facial action unit detection using active learning and an efficient non-linear kernel approximation." Proceedings of the IEEE International Conference on Computer Vision Workshops. 2015.
3. 紹介論文
• Thibaud Senechal, Daniel McDuff, Rana Kaliouby:
“Facial Action Unit Detection using Active Learning and an
Efficient Non-Linear Kernel Approximation”, Proceedings
of the IEEE International Conference on Computer Vision
Workshops, 2015
3
6. 訓練データの収集
• 認識したい表情の正例と負例を大量に集める必要性
• 大量のデータすべてに人手でラベル付けするのは困難
• 表情データベース
– Cohn-Kanade (CK+)[1]
– MMI[2]
– DISFA[3]
6
自然な表情を大量の人数から集める必要がある
• 特定の環境
• 作られた表情
• 収集した人数が少ない
多様性に
乏しい
[1] Lucey, P., Cohn, J. F., Kanade, T., Saragih, J., Ambadar, Z., & Matthews, I. (2010). The Extended Cohn-Kanade Dataset (CK+): A complete expression dataset
for action unit and emotion-specified expression. Proceedings of the Third International Workshop on CVPR for Human Communicative Behavior Analysis
(CVPR4HB 2010), San Francisco, USA, 94-101.
[2] Pantic, Maja, et al. "Web-based database for facial expression analysis." Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on. IEEE, 2005.
[3] Mavadati, S. Mohammad, et al. "Disfa: A spontaneous facial action intensity database." IEEE Transactions on Affective Computing 4.2 (2013): 151-160.