A sophisticated manipulation aid in a virtual environment using dynamic constraints among object faces

Yoshifumi Kitamura, Amy Yee, Fumio Kishino

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A natural and intuitive method is proposed to help a user manipulate an object in a virtual environment. The method does not need to assign special properties to the object faces in advance and does not require special hardware. Instead, it uses only the visual constraints of motion among object faces that are dynamically selected by a real-time collision detection method while the user manipulates the object. By constraining more than two faces during the user's manipulation, the proposed method provides an efficient tool for complicated manipulation tasks. First, the method of manipulation aid is described. Then several experiments demonstrate the effectiveness of this method, particularly when the user is requested to precisely place a virtual object in a certain location. Finally, as an application of the proposed manipulation aid, an experiment is conducted to compare the performances of a task (constructing a simple toy) in a real versus a virtual environment. Results show that the distance accuracy and completion time of the virtual task with the manipulation aid is close to that of the real task.

Original languageEnglish
Pages (from-to)460-477
Number of pages18
JournalPresence: Teleoperators and Virtual Environments
Volume7
Issue number5
DOIs
Publication statusPublished - 1998 Oct

Fingerprint

Dive into the research topics of 'A sophisticated manipulation aid in a virtual environment using dynamic constraints among object faces'. Together they form a unique fingerprint.

Cite this