A global human walking model with real-time kinematic personification

Abstract

This paper presents a human walking model built from experimental data based on a wide range of normalized velocities. The model is structured on two levels. On the first level, global spatial and temporal characteristics (normalized length and step duration) are generated. On the second level, a set of parameterized trajectories produce both the position of the body in space and the internal body configuration. This is performed for a standard structure and an average configuration of the human body. The experimental context corresponding to the model is extended by allowing a continuous variation of global spatial and temporal parameters according to the motion rendition expected by the animator. The model is based on a simple kinematic approach designed to keep the intrinsic dynamic characteristics of the experimental model. Such an approach also allows a personification of the walking action in an interactive real-time context in most cases. A correction automata of such motion is then proposed.

Analysis of Moving Human Micro-Doppler Signature in Forest Environments

“…However such data is limited to specific parameters from the captured scene such as the particular direction, speed, and human characteristics. In order to study different human motion effects, we opt to use a standard analytical model extracted from empirical data, such as the well-known Boulic model [25][26][27][28].…”

“…Each body part is modeled using ellipsoids with different semi-axes lengths appropriate for the corresponding body part. The motion is described using the Boulic walking model based on time-dependent translations and rotations of each joint [25]. The input variables for this model are the velocity and the height of the human.…”

“…The fundamental temporal characteristic of the Boulic model is the duration of cycle, T c , which is a ratio of the relative length of walking cycle to the relative velocity; i.e., T c = L c /R v . These spatial and temporal characteristics are utilized to calculate the various translations and rotations of each body part as listed in Table 1 [25].…”

A grasp‐based motion planning algorithm for character animation

“…Several kinematic methods are dedicated specifically to producing human walking [4] or running [6] gaits. Other walking and running methods employ a hybrid mixture of kinematics and dynamics [5,9].…”

Guided Optimization for Balanced Locomotion

“…The work of Badler et al [2], Magnenat-Thalmann and Thalmann [17], and Boulic et al [4] illustrate the present state of the art in modeling humans using predominantly kinematic methods. The method presented in [3] includes the use of kinematicallyguided corrections to motions.…”