An efficient and accurate method for constructing 3D human models from multiple cameras

作者：Quah C K^*; Gagalowicz A; Seah H S

来源：3rd Asia-Pacific Congress on Sports Technology, 2007-09-23 to 2007-09-26.

To achieve accurate and reliable tracking of human motion for bio-kinematics analysis, a 3D human model very similar to the subject is essential. In this paper, we present a novel approach to (1) precisely construct the surface shape of the whole human body, and (2) estimate the underlying skeleton. We make use of multiple 2D images of the subject in collaboration with a generic anthropometrical 3D model made up of regular surfaces and skeletons to adapt to the specific subject. We developed a three-stage technique that uses the human feature points and limb outlines that work together with the generic 3D model to yield our final customized 3D model. The first stage is an iterative camera pose calibration and 3D characteristic point reconstruction-deformation algorithm that gives us an intermediate 3D model. The second stage refines the intermediate 3D model by deformation via the silhouette limbs information, thus obtaining the surface skin model. In the final stage, we make use of the results of skin deformation to estimate the underlying skeleton. The color texture for visualization is obtained by computing the projected texture coordinates from the 3D model. From our final results, we demonstrate that our system is able to construct quality human model, where the skeleton is constructed and positioned automatically.

• 出版日期2008
• 单位南阳理工学院