This paper presents the thermal vibration analysis of double-layer graphene sheet embedded in polymer elastic medium, using the plate theory and nonlocal continuum mechanics for small scale effects. The graphene is modeled based on continuum plate theory and the axial stress caused by the thermal effects is also considered. Nonlocal governing equations of motion for this double-layer graphene s...

Previous lumbar motion analyses suggest the usefulness of quantitatively characterizing spine motion. However, the application of such measurements is still limited by the lack of user-friendly automatic spine motion analysis systems. This paper describes an automatic analysis system to measure lumbar spine disorders that consists of a spine motion guidance device, an X-ray imaging modality to ...

The approach taken in the paper is to compare the features and limitations of motion trackers in common use. Results from the author’s experimentation with an inertial motion capture system are discussed. The system mainly involves inertia sensing technology, Bluetooth, sensor network and software development of human body motion capture model. The sensor network of the system is used to collec...

This paper introduces a real time model-based human motion analysis system using two orthogonal views. The goal of the system is to analyze the motion of the human object without using any markers on the object. The system will generate the corresponding Body Definition Parameters (BDPs) and Body Animation Parameters (BAPs) defined by MPEG-4. With the BDPs and a sequence of BAPs, a real-time vi...

Vision-based sensing algorithms are computationally-demanding tasks due to the large amount of data acquired and processed. Visual sensors deliver much information, even if data are redundant, and do not give any additional information. A Selective Change Driven (SCD) sensing system is based on a sensor that delivers, ordered by the magnitude of its change, only those pixels that have changed m...

In this paper, we present several important methods in a video information system for sport motion analysis. We first describe an efficient method for computing the position of one or more moving objects in a video sequence. We utilize computer vision routines for both target object tracking and feature value extraction. Then, we propose a multiple subsequence matching mechanism for comparing t...

This paper describes a high-speed motion tracking system based on the full-search correlation matching. Incorporating Advanced Correlation Processor that computes more than 500 motion vectors per frame, the system allows detection and tracking of moving objects at video rate. The system is implemented on a single board and can be mounted inside of a PC. It is thus compact and of low cost, and i...