仮想浮標を介した実物体の運動推定

抄録

This paper describes a method for estimating 3D motion. Some methods for detecting the 3D scene flow (=3D-Flow) of an arbitrary point on free-form surface by using video sequence have been already suggested. When the target object is a rigid body, motion parameters can be calculated analytically because all 3D-Flow vectors are based on same conversion matrix. On the other hand, when the target object is a non-rigid body, it is difficult to calculate overall motion involving local deformation. In this study, we define detected 3D-Flow vectors as “flow-field” (or “force-field”), and store the virtual buoy (float) into this field, and calculate motion of the virtual buoy by using simple physical simulation. Motion of the object in the real world is estimated through the motion of the virtual buoy.