多媒体技术及应用期末论文多媒技术及应用期末论文.docVIP

多媒体技术及应用 题目：Virtual reality technology and its industrial applications 出处： 中国知网 班级： 学号： 2010040201121 姓名： 程若禹 原文： Virtual reality technology and its industrial applications Virtual reality (VR) is well-known and is currently being investigated for practical use in various industrial fields. Using three-dimensional computer graphics, interactive devices, and a high-resolution display, a virtual world can be realized in which imaginary objects can be picked up as if they were in the physical world Abstract The generation of geometric shapes called ‘geometric concept designs’ via the multi-sensory user interface of a virtual reality (VR) based system motivates the current research. In this new VR-based system, geometric designs can be more effectively inputted into the computer in a physically intuitive way. The interaction mechanism is similar to the way in which industrial designers sit and discuss concept design shapes across a table from each other, prior to making a final decision about the product details. By using different sensory modalities, such as voice, hand motions and gestures, product designers can convey design ideas through the VR-based computer-aided design (CAD) system. In this scenario, the multi-sensory interface between human and computer plays a central role with respect to usability, usefulness and accuracy. The current paper focuses on determining the requirements for the multi-sensory user interface and assessing the applications of different input and output mechanisms in the virtual environment (VE). In order to evaluate this multi-sensory user interface, this paper formulates the typical activities in product shape design into a set of requirements for the VR-CAD system. On the basis of these requirements, we interviewed typical CAD users about the effectiveness of using different sensory input and output interaction mechanisms such as visual, auditory and tactile. According to the results of these inv