文章基本信息

标题：Evaluating Effectiveness of 3D object picking algorithms in Non immersive virtual world
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作者：Dr.M.Mohamed Sathik ; K.Merriliance
期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2014
卷号：3
期号：12
页码：9721-9725
出版社：IJECS
摘要：As ‘3D object picking in non immersive virtual world’ is an essential interaction technique in virtualenvironment, it is performed using a 3D mouse or an interactive glove to explore and interact with any of the objects. In thispaper we focused the advantages of picking using bounding box and pick cube algorithm over picking using boundingsphere and pick sphere algorithm .The usefulness and effectiveness of the proposed evaluation measures are shown byreporting the performance evaluation of two algorithms. We then compare the application of both algorithms with relatedwork to demonstrate that they are more suitable. These analytical studies provide distinct advantages in terms of ease of useand efficiency because they consider the tasks of object picking effective application-independent picking technique forvarious input devices. In this paper, cube and sphere are used to represent the intersection point of the ray coming from theuser input and the object to be picked. By intersecting the objects in the scene with the ray with a pick cube at theintersection point, it is determined which one is picked. An object is selected when this pick cube intersects the object’sbounding box.
关键词：Virtual environment (VE); pick cube; picks sphere; volume of intersection (VI); picked object;bounding volume; object picking