نتایج جستجو برای: silhouette

تعداد نتایج: 2360  

2000
Takayuki Okatani Koichiro Deguchi

A method for reconstructing shape of an object from its silhouette using a mobile camera to which a gyro sensor is attached is proposed. In order to determine unknown camera positions at which images are taken, the pose information of the camera derived from the attached gyro sensor as well as silhouette of the object are used. An algorithm for computing the camera positions by an iterative pro...

2003
Tomas Akenine-Möller Ulf Assarsson

In shadow volume rendering, the shadow volume silhouette edges are used to create primitives that model the shadow volume. A common misconception is that the vertices on such silhouettes can only be connected to two silhouette edges, i.e., have degree two. Furthermore, some believe that the degree of such a vertex can have any degree. In this short note, we present a geometric proof that shows ...

2010
Chaur-Heh Hsieh Ping S. Huang Ming-Da Tang

This paper presents a method for human action recognition using silhouette histogram. The human silhouette is obtained by using the background subtraction method and then mapped into three different polar coordinate systems that characterize three parts of a human figure respectively. Each polar coordinate system is quantized by partitioning it into several cells with different radii and angles...

Journal: :Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) 1998

Journal: :Fibres and Textiles in Eastern Europe 2016

Journal: :AJN, American Journal of Nursing 2020

Journal: :Fuzzy Sets and Systems 2006
Ricardo J. G. B. Campello Eduardo R. Hruschka

The present paper proposes a new cluster validity measure as an additional criterion to help the decision making process in fuzzy cluster analysis. This measure, named Fuzzy Silhouette, is a generalization to the fuzzy case of the Average Silhouette Width Criterion, originally conceived to assess crisp (non-fuzzy) data partitions. The Fuzzy Silhouette is more appealing than its crisp counterpar...

2006
C. Hernández Carlos Hernández Francis Schmitt Roberto Cipolla

We present a new approach to camera calibration as a part of a complete and practical system to recover digital copies of sculpture from uncalibrated image sequences taken under turntable motion. In this paper we introduce the concept of the silhouette coherence of a set of silhouettes generated by a 3D object. We show how the maximization of the silhouette coherence can be exploited to recover...

2014
Jinyan Chen

Human gait identification aims to identify people by a sequence of walking images. Comparing with fingerprint or iris based identification, the most important advantage of gait identification is that it can be done at a distance. In this paper, silhouette correlation analysis based human identification approach is proposed. By background subtracting algorithm, the moving silhouette figure can b...

2005
Song Hu J. Mortensen Bernard F. Buxton

A real-time tracking system was built to track performers on an interactive stage. Using an ordinary, up to date, desktop workstation, the performers’ silhouette was segmented from the background and parameterized by calculating the normalized central image moments. In the stage system, the silhouette moments were then sent to a parallel workstation, which used them to generate corresponding 3D...

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