IPSJ SIG Technical Report Vol.2017-MUS-116 No /8/24 MachineDancing: 1,a) 1,b) 3 MachineDancing MachineDancing MachineDancing 1 MachineDan
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1 MachineDancing: 1,a) 1,b) 3 MachineDancing MachineDancing MachineDancing 1 MachineDancing MachineDancing [1] a) s.fukayama@aist.go.jp b) m.goto@aist.go.jp 1 MachineDancing 3 CG c 2017 Information Processing Society of Japan 1
2 1 1 MachineDancing 2 3 Kinect [2], [3] [4], [5], [6] [7] [8] 2.2 [9] 1 [10] CG CG CG MikuMikuDance *1 vmd xyz x CG *1 c 2017 Information Processing Society of Japan 2
3 and and Dynamic Bayesian Network [11] Madmom [12] [13] (Motion Rhythm Feature) Mini-batch k-means [14] [13] t = 1,..., T t x t s t x 1:T = x 1... x T c 2017 Information Processing Society of Japan 3
4 s 1:T = s 1... s T P (s 1:T ) = x 1:T P (s 1:T x 1:T ) P (x 1:T ) (1) s 1:T x 1:T s 1:T x 1:T P (x 1:T s 1:T ) x 1:T = argmax x 1:T P (x 1:T s 1:T ) (2) P (x 1:T s 1:T ) = P (s 1:T x 1:T ) P (x 1:T ) P (s 1:T ) (3) (3) x 1:T x 1:T = argmax x 1:T P (s 1:T x 1:T ) P (x 1:T ) (4) s t t 3 (3) P (x 1 ) T P (s t x t+1, x t, x t 1 ) P (x t x t 1 ) (5) t=2 P (x t x t 1 ) Viterbi 3 P (s t x t 1, x t, x t+1 ) N Viterbi O ( N 2 T ) O ( N 6 T ) Viterbi t Mini-batch k-means [14] (chorus) Kinect (4) t ˆx t (4) x 1:T = argmax x 1:T P (s 1:T, ˆx 1:T x 1:T ) P (x 1:T ) (6) Viterbi c 2017 Information Processing Society of Japan 4
5 1 x x U x L (6) P ( s 1:T, ˆx 1:T x U 1:T, x L ( 1:T) P x U 1:T, x L ) 1:T (7) 2 2 [15], [16] x U x L h (x) x 2 f (x) g (x) h (x) = f (x) + g (x) y u h (x) ĥ (x, y) ĥ (x, y, u) = f (x) + g (y) + u (x y) (8) 3 x y max x h (x) ) min u (max x,y ĥ (x, y, u) ĥ (x, y, u) = {f (x) + ux} + {g (y) uy} (9) x y x y x = arg max{f (x) + ux} x (10) y = arg max{g (y) uy} y (11) max ĥ (x, y, u) = f (x ) + g (y ) + u (x y ) (12) x,y u u u x y α u := u α (x y ) (13) u u 2 Viterbi 1 2 u z (1) z (2) 2 t t 1 ( ) 2 p 1 z (1) t z (1) t 1 ( ) p 2 z (2) t z (2) t 1 ( ( q t,r t,s t ( ) p q q t z (1) t ) p r r t z (2) t ) p s s t z (1) t, z (2) t q t r t s t z (1) z (2) 10 z (1), z (2) {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} p 1, p q 1:50 r 1:50 s 1:50 s t = q t + r t ( ) ( ) p q q t z (1) t = N z (1) t, 1 (14) ( ) ( ) p r r t z (2) t = N z (2) t, 1 (15) ( ) ( ) p s s t z (1) t, z (2) t = N z (1) t + z (2) t, 1 (16) 100 α = 0.1 z (1) Viterbi z (2) c 2017 Information Processing Society of Japan 5
6 JST ACCEL (JPMJAC1602) 3 z (1) Viterbi z (2) Viterbi 4 Viterbi 3 z (1), z (2) MachineDancing 2 [1] MachineDancing: Vol. 2014, No. 14, pp. 1 7 (2014). [2] Chen, K. M., Shen, S. T. and Prior, S. D.: Using music and motion analysis to construct 3D animations and visualisations, Digital Creativity, Vol. 19, No. 2 (2008). [3] Panagiotakis, C., Holzapfel, A., Michel, D. and Argyros, A. A.: Beat Synchronous Dance Animation based on Visual Analysis of Human Motion and Audio Analysis of Music Tempo, Proceedings of ISVC 2013, pp (2013). [4] Shiratori, T., Nakazawa, A. and Ikeuchi, K.: Synthesizing dance performance using musical and motion features, Proceedings of ICRA 2006, pp (2006). [5] Kim, J. W., Fouad, H., Sibert, J. L. and Hahn, J. K.: Perceptually motivated automatic dance motion generation for music, Computer Animation and Virtual Worlds 2009, Vol. 20, pp (2009). [6] Alankus, G., Bayazit, A. A. and Bayazit, O. B.: Computer Animation and Virtual Worlds, No. 16, pp (2005). [7] Fan, R., Xu, S. and Geng, W.: Example-Based Automatic Music-Driven Conventional Dance Motion Synthesis, IEEE Transactions on Visualization and Computer Graphics, Vol. 18, No. 3 (2012). [8] Ofli, F., Erzin, E., Yemez, Y. and Tekalp, A. M.: Learn2Dance: Learning Statistical Music-to-Dance Mappings for Choreography Synthesis, IEEE Transactions on Multimedia, Vol. 14, No. 3 (2012). [9] Lee, M., Lee, L. and Park, J.: Music similarity-based approach to generating dance motion sequence, Multimedia Tools and Applications, Vol. 62, No. 3, pp (2013). [10] Oore, S. and Akiyama, Y.: Learning to Synthesize Arm Motion to Music By Example, Proceedings of WSCG 2006, pp (2006). [11] Böck, S., Krebs, F. and Widmer, G.: Joint Beat and Downbeat Tracking with Recurrent Neural Networks, Proc. ISMIR, ISMIR 16 (2016). [12] Böck, S., Korzeniowski, F., Schlüter, J., Krebs, F. and Widmer, G.: madmom: a new Python Audio and Music Signal Processing Library, Proceedings of the 24th ACM International Conference on Multimedia, Amsterdam, The Netherlands, pp (online), DOI: / (2016). [13] Shiratori, T.: Synthesis of Dance Performance Based on Analyses of Human Motion and Music, Doctoral Dissertation (2006). [14] Sculley, D.: Web-Scale K-Means Clustering, WWW2010, pp. 1 2 (2010). [15] Vol. 2013, pp. 1 6 (2013). [16] Vol. 2014, No. 8, pp. 1 7 (2014). c 2017 Information Processing Society of Japan 6
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