TY - GEN
T1 - Sparse nonnegative dynamic mode decomposition
AU - Takeishi, Naoya
AU - Kawahara, Yoshinobu
AU - Yairi, Takehisa
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers JP15J09172, JP16H01548, JP26280086, and JP26289320.
Publisher Copyright:
© 2017 IEEE.
PY - 2018/2/20
Y1 - 2018/2/20
N2 - Dynamic mode decomposition (DMD) is a method to extract coherent modes from nonlinear dynamical systems. In this paper, we propose an extension of DMD, sparse nonnegative DMD, which generates a nonlinear and sparse modal representation of dynamics. In particular, this makes DMD more suitable for video processing. We reformulate DMD as a block-multiconvex optimization problem to impose constraints and regularizations directly on the structures of the estimated dynamic modes. We introduce the results of experiments with synthetic data and a surveillance video dataset and show that sparse nonnegative DMD can extract part-based dynamic modes from video streams.
AB - Dynamic mode decomposition (DMD) is a method to extract coherent modes from nonlinear dynamical systems. In this paper, we propose an extension of DMD, sparse nonnegative DMD, which generates a nonlinear and sparse modal representation of dynamics. In particular, this makes DMD more suitable for video processing. We reformulate DMD as a block-multiconvex optimization problem to impose constraints and regularizations directly on the structures of the estimated dynamic modes. We introduce the results of experiments with synthetic data and a surveillance video dataset and show that sparse nonnegative DMD can extract part-based dynamic modes from video streams.
UR - http://www.scopus.com/inward/record.url?scp=85045327748&partnerID=8YFLogxK
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U2 - 10.1109/ICIP.2017.8296769
DO - 10.1109/ICIP.2017.8296769
M3 - Conference contribution
AN - SCOPUS:85045327748
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 2682
EP - 2686
BT - 2017 IEEE International Conference on Image Processing, ICIP 2017 - Proceedings
PB - IEEE Computer Society
T2 - 24th IEEE International Conference on Image Processing, ICIP 2017
Y2 - 17 September 2017 through 20 September 2017
ER -