A computational model for reconstructing 3D structure and motion of an articulated object

Abstract

A computational model is proposed to recover the 3D structure and motion of a moving articulated object, related to "biological motion", from 2D projected images. Two constraints are assumed in the model: one is that an object consists of several rigid rods, and the other is that each rod rotates around its own axis fixed in relation to the joint with the preceding rod. We implemented the model on a computer and obtained satisfactory results from simulations using artificial motion and human walk as input data.