Chotikakamthorn, Nopporn

Preferred name

Chotikakamthorn, Nopporn

Alternative Name

Chotikakamthorn, N.

Chotikakamthornb, Nopporn

Main Affiliation

School of Information Technology

Email

nopporn.ch@kmitl.ac.th

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A light-pointing method for virtual object selection and manipulation in a monoscopic viewing system
(2005-12-01)
Kanjanasupark, Pornchai
;
Chotikakamthorn, Nopporn
Virtual object selection and re-location are two basic object manipulations that can be found in most VR/VE applications. Many interaction metaphors have been developed for object manipulation in VR/VE environments. Of particular interest is the ray-casting method. The method applies a light ray metaphor in selecting and moving a virtual object. However, the method implicitly requires a stereoscopic viewing system to be efficiently use. With a monoscopic viewing system, inefficiency of the method in terms of task completion time is demonstrated in this paper. For a system using a monoscopic viewing device, a light-pointing method based on a laser-pointer metaphor is proposed to alleviate the shortcoming of the original ray-casting method. Compared with the ray-casting method, it was found from the experiment that the proposed method is noticeably more efficient in terms of task completion time. © 2005 IEEE.