Model-based Human Motion Analysis

In recent years, with the development of related technologies, Human motion analysis has developed into a research area integrated of multidisciplinary knowledge, and become one of the headline-grabbing front directions in the field of image processing and computer vision. It is an important technology combined with bio-mechanical and computer vision. It has a broad application prospects and potential economic value in many fields. In view of this, an increasing number of scientific institutions and commercial organizations have invested in research in the field. Human movement belongs to a typical articulated motion, doing Human motion analysis with model has a great deal of research value. In this regard, for related issues of human motion analysis, this paper mainly does the following studies with Human model:(1) Segmenting moving object with background subtraction algorithm. For the actual situation of experimental environment, this paper do background modeling combined with frame differential method and averaging method to improve the traditional average background method. And make use of Adaptive threshold segmentation and Morphological image processing method to extract the moving object completely.(2) Establishing the human model with OpenGL. The paper presents a deformable model. And model on human upper arm, lower arm, upper leg, lower leg with the deformable model, to reflect the events of the arm and leg muscles deformation during exercise approximately.(3) Using particle filtering algorithm based on model to track human arm motion and every body motion. For the High-dimensional characteristics of articulated motion, the paper combines with partitioned sampling strategy and top-down search mode to complete particle filtering algorithm based on model. And use the algorithm to track human arm motion and every body motion.(4) Doing human rotational dynamics analysis with model. Propose a human rotational dynamics method based on the human model. Thinking of human body as a composite system combined with multiple parts, and doing rotational dynamics analysis on all parts separately with related rotational dynamic knowledge. To get the kinetic parameter of the whole man, and do rotational analysis of the whole man approximately.