TY  - JOUR
AU  - Ignasi Rius
AU  - Jordi Gonzalez
AU  - J. Varona
AU  - Xavier Roca
PY  - 2009//
TI  - Action-specific motion prior for efficient bayesian 3D human body tracking
T2  - PR
JO  - Pattern Recognition
SP  - 2907–2921
VL  - 42
IS  - 11
N2  - In this paper, we aim to reconstruct the 3D motion parameters of a human bodymodel from the known 2D positions of a reduced set of joints in the image plane.Towards this end, an action-specific motion model is trained from a database of realmotion-captured performances. The learnt motion model is used within a particlefiltering framework as a priori knowledge on human motion. First, our dynamicmodel guides the particles according to similar situations previously learnt. Then, the solution space is constrained so only feasible human postures are accepted as valid solutions at each time step. As a result, we are able to track the 3D configuration of the full human body from several cycles of walking motion sequences using only the 2D positions of a very reduced set of joints from lateral or frontal viewpoints.
SN  - 0031-3203
UR  - http://dx.doi.org/10.1016/j.patcog.2009.02.012
N1  - ISE
ID  - Ignasi Rius2009
ER  -