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With the process of China's entering a serious aging society, it generally becomes one of the problems for people caring as elderly falls frequently. Thus, it is necessary for us find a way that the old people get help timely when it happened. On studies related to falls in outdoors currently, popular methods are on Computer Vision and Inertial Sensor. The problems of these researches are focus on...
Virtual simulation has been verified as an important approach to help people coping with emergency evacuation. This study presents the efficient scene playback and evacuation decision methods against emergency in the 3D virtual simulation applications. Firstly, the method of constructing customizable evacuation scene is proposed, which supports dynamic scene management and interactive editing. Then...
Although a lot of works have been done in the domain of hand tracking, it is still a challenge to robustly tracking hand motion. Traditional Cam shift algorithm which can efficiently tracking object in a simple scene is sensitive to the changing of background, other variant such as Camshift&Kalman tracking is still not robust enough to give a reliable result. This paper proposes a real-time...
This paper proposes a 3d model data hiding scheme on a new local coordinate system, which is obtained by a vertex and its neighbors of the model. Embedding primitives are first transformed into local orthogonal coordinate systems and then to local coordinate spherical systems, messages are embedded by modifying the vertexpsilas longitude and latitude of the local spherical coordinate system. There...
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