[1].The Marking Technology in Motion Capture for the Complex Locomotor Behavior of Flexible Small Animals (Gekko gecko)[J].Asian Herpetological Research,2019,10(3):197-210.[doi:10.16373/j.cnki.ahr.180071]
 Zhouyi WANG*#,Weijia ZONG#,Bingcheng WANG,et al.The Marking Technology in Motion Capture for the Complex Locomotor Behavior of Flexible Small Animals (Gekko gecko)[J].Asian Herpetological Research(AHR),2019,10(3):197-210.[doi:10.16373/j.cnki.ahr.180071]

The Marking Technology in Motion Capture for the Complex Locomotor Behavior of Flexible Small Animals (Gekko gecko)()

Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]



The Marking Technology in Motion Capture for the Complex Locomotor Behavior of Flexible Small Animals (Gekko gecko)
Zhouyi WANG1*# Weijia ZONG1# Bingcheng WANG1 Junjie ZHU2 Kai QIN2 and Zhendong DAI1*
1 Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, Jiangsu, China
2 Shanghai Institute of Aerospace System Engineering, 3888 Yuanjiang Road, Shanghai 201109, China
small flexible animals marking technology motion capture quantification of locomotor behavior gecko
Animals have evolved a variety of behavior patterns to adapt to the environment. Motion-capture technology is utilized to quantify and characterize locomotor behaviors to reveal the mechanisms of animal motion. In the capture of flexible, small animals with complex locomotor behaviors, the markers interfere with each other easily, and the motion forms (bending, twisting) of the moving parts are obviously different; thus, it is a great challenge to realize accurate quantitative characterization of complex locomotor behaviors. The correlation between the marker properties, including the size and space length, and the precision of the system are revealed in this paper, and the effects of diverse marker shapes on the capturing accuracy of the captured objects in different motion forms were tested. Results showed that the precision of system is significantly improved when the ratio of the space length to the diameter of the markers is larger than four; for the capture of the spatial twisting motion of the flexible object, the hexagon markers had the lowest spatial lost-marker rate relative to the circle, triangle, and square. Customized markers were used to capture the locomotor behavior of the gecko-inspired robot (rigid connection) and the gecko (flexible connection). The results showed that this marking technology can achieve high accuracy of motion capture for geckos (the average deviation was approximately 0.32 mm, and the average deviation’s variation rate was approximately 0.96%). In this paper, the marking technology for the motion capture of flexible, small animals with complex motion is proposed; it can effectively improve the system precision as well as the capture accuracy, and realize the quantitative characterization of the complex motion of flexible, small objects. It provides a reliable technical means to deeply study the evolution of the motion function of small animals and advance systematic research of motion-capture technology.


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更新日期/Last Update: 2019-09-25