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By George Bebis, Richard Boyle, Bahram Parvin, Darko Koracin, Yoshinori Kuno, Junxian Wang, Renato Pajarola, Peter Lindstrom, Andre Hinkenjann, Miguel L. Encarnacao

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Read or Download Advances in Visual Computing: 5th International Symposium, ISVC 2009, Las Vegas, NV, USA, November 30 - December 2, 2009, Proceedings, Part I (Lecture ... Vision, Pattern Recognition, and Graphics) PDF

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Extra info for Advances in Visual Computing: 5th International Symposium, ISVC 2009, Las Vegas, NV, USA, November 30 - December 2, 2009, Proceedings, Part I (Lecture ... Vision, Pattern Recognition, and Graphics)

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4 Convexity Convexity is the ratio of perimeter of the convex-hull, to the perimeter of the shape boundary, , where convex hull is the minimum convex polygon covering the shape. 5 Rectangularity Rectangularity measures the similarity of a shape to a rectangle. This can be calculated by the ratio of the area of the hand shape, to the minimum bounding box of hand shape, . Minimum bounding box (MBB) is the smallest rectangle covering the shape. For a rectangle, rectangularity is 1; for a circle, it is .

Naoya Ohnishi, Atsushi Imiya, and Tomoya Sakai 778 788 799 807 Table of Contents – Part II Rooftop Detection and 3D Building Modeling from Aerial Images . . . Fanhuai Shi, Yongjian Xi, Xiaoling Li, and Ye Duan XLI 817 An Image Registration Approach for Accurate Satellite Attitude Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . Alessandro Bevilacqua, Ludovico Carozza, and Alessandro Gherardi 827 A Novel Vision-Based Approach for Autonomous Space Navigation Systems .

FD is slighhtly better than HU. Real-time is an indispen nsable requirement for a hand interface system. Noticeaable delay prevents user from im mmersive usage of the system. Therefore, we analyzed the running time performance of o representations. To measure running time performannces of each representation, we computed the total elapsed time of each representation for all samples. Fig. 3 shows th he results of total elapsed time of 10160 samples for eeach representation. According to t the results, HU is the fastest method among these ffour representations.

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