|Table of Contents|

Model-based 3D Motion Estimation of Elastic Articulated Objects


Research Field:
Publishing date:


Model-based 3D Motion Estimation of Elastic Articulated Objects
PAN Hai-lang1SUN Hua2SHI Lei3DAI Yue-wei1
1. Schoo l o fAutom ation, NU ST, N anjing 210094, Ch ina; 2. Departm ent of Resources, Environment and U rban and Rura l Plann ing, N anjing Agricu lturalUn iversity, Nan jing 210095, Ch ina; 3. Institute ofAutom ation, Ch inese A cademy of Sciences, Beijing 100190, China
elastic articulated objects conic curves motion estimation
To offer a good tradeoff between computational complexity and model precision in non-rigid motion analysis,a method of 3D motion estimation for elastic articulated objects(human bodies) based on the conic curves is presented.A human body 3D model is established.The 3D deformation and motion parameters based on the proposed model are estimated by a sequence of stereo images.The 3D motion parameters are estimated based on the 3D model of conic curves and the corresponding equations of its two projections in image plane.The experimental results of human arm motion estimation demonstrate that the model-based estimation method can estimate the human motion parameters properly.


[1] Enzw e ilerM, G av rila D M. M onocu lar pedestr ian detection: Survey and exper im ents[ J]. IEEE Transactions on Pa ttern Ana lysis and M achine Inte lligence, 2009, 31( 12): 2179- 2195.
[2] Plankers R, Fua P. Articu lated so ft objects formu ltiview shape and m otion capture[ J]. IEEE Transactions on Pattern Ana ly sis andM achine Inte lligence, 2003, 25 ( 9): 1182- 1187.
[3] DApuzzo N, Pl??nkers R, G ruen A, et a.l M ode ling hum an bod ies from v ideo sequences[ A] . Proceedings of E lectron ic Im ag ing [ C ]. San Jose, Ca lifo rn ia, USA: SPIE, 1999: 1- 12.
[4] Pan H L, Sh i L, Dai Y W. 3D modeling of e lastic a rticulated ob jects and its pa ram e ter determ ination from image po ints[ J]. The Imag ing Sc ience Journa,l 2009, 57( 2): 79- 83. [ 5 ] 潘海朗, 石磊, 戴跃伟. 采用图像轮廓的弹性连接体三维建模与运动估计[ J]. 南京理工大学学报 ( 自然科学版), 2009, 33( 2): 220- 224.
[6] Zhang Z Y. Pa rame ter estim ation techniques: A tutor-i al w ith application to conic fitting [ J]. Im age and V-i sion Com puting, 1997, 15( 1): 59- 76.


Last Update: 2010-06-30