Motion Capture Data Analysis in the Instantaneous Frequency-Domain Using Hilbert-Huang Transform.
Motion Capture Data Analysis in the Instantaneous Frequency-Domain Using Hilbert-Huang Transform.
复制标题
基于希尔伯特-黄变换的运动捕捉数据瞬时频域分析
DOI:
10.3390/s20226534
复制
发表时间:
2020-11-16
期刊:
影响因子:
--
通讯作者:
Ikuno S
中科院分区:
文献类型:
--
作者:
Dong R;Cai D;Ikuno S
Motion capture data are widely used in different research fields such as medical, entertainment, and industry. However, most motion researches using motion capture data are carried out in the time-domain. To understand human motion complexities, it is necessary to analyze motion data in the frequency-domain. In this paper, to analyze human motions, we present a framework to transform motions into the instantaneous frequency-domain using the Hilbert-Huang transform (HHT). The empirical mode decomposition (EMD) that is a part of HHT decomposes nonstationary and nonlinear signals captured from the real-world experiments into pseudo monochromatic signals, so-called intrinsic mode function (IMF). Our research reveals that the multivariate EMD can decompose complicated human motions into a finite number of nonlinear modes (IMFs) corresponding to distinct motion primitives. Analyzing these decomposed motions in Hilbert spectrum, motion characteristics can be extracted and visualized in instantaneous frequency-domain. For example, we apply our framework to (1) a jump motion, (2) a foot-injured gait, and (3) a golf swing motion.
登录
查看更多内容
影响因子:
20.6
作者:
BOASHASH, B
通讯作者:
BOASHASH, B
DOI:
10.1098/rspa.2009.0502
发表时间:
2010-05-08
影响因子:
3.5
作者:
Rehman, N.;Mandic, D. P.
通讯作者:
Mandic, D. P.
影响因子:
5.4
作者:
ur Rehman, Naveed;Mandic, Danilo P.
通讯作者:
Mandic, Danilo P.
影响因子:
3.9
作者:
Hssayeni, Murtadha D.;Jimenez-Shahed, Joohi;Ghoraani, Behnaz
通讯作者:
Ghoraani, Behnaz
影响因子:
4.3
作者:
Kim, Young Jin;Kim, Kyun Dae;Lee, Hyon Soo
通讯作者:
Lee, Hyon Soo