| Summary: | 碩士 === 國立臺灣科技大學 === 設計研究所 === 89 === ABSTRACT
Following the progress of computer technology, the Internet can deliver not only two-dimensional images and text, but also three-dimensional objects that users can interact with instantly on the Internet. Because of the improvement in network bandwidth and compression technology, the quality of three-dimensional objects is greatly enhanced and can be accepted by general users. Therefore, the presentation of three-dimensional objects on the Internet is also becoming popular among the business sector. After the technological problem is solved, the perfection of the three-dimensional manipulation interface for VR-based web browsers becomes the key to success.
This study explores users’ behaviors and learning patterns when they use the interfaces of VR-based web browsers. In order to manipulate computer generated virtual objects effectively, a three-dimensional manipulation interface must allows users to perceive their precise locations in the computer generated three-dimensional space from a two-dimensional monitor screen. Hence, this study investigates further into the effect of different groups’ spatial recognition on manipulation. Through the use of experiments, questionnaire surveys, scenery interviews and software recording, this study tries to understand users’ evaluation of manipulation methods and design concepts of different interfaces. Based on the findings, a slider-based manipulation interface for VR-based web browsers is developed and experiments are carried out to justify its efficiency. Finally, this study reaches the following conclusions:
1. The manipulation of VR-based web browsers is not influenced by the differences in testees’ groups (three-dimensional experience, gender and familiarity with manipulation). The main factor that causes the difference is the testees’ preference for the manipulation method of each interface.
2. Testees have higher error toleration of manipulation accuracy in exchange for higher interactivity or flexibility. Furthermore, the reset function must be easy and convenient to use to encourage users to try and use every function.
3. The slider-based interface for VR-based web browsers can display and allow users to control three axial directions in space. It can provide not only rapid manipulation but also enough accuracy, which makes it more efficiently to be controlled.
This study proposes the concept of a slider-based manipulation interface for VR-based web browsers. It is hoped that its functions of spatial orientation assistance and fine-tuning rotation in fixed angles could offer another way of manipulation, and have some contributions to the development of VR-based web browsers.
Keywords: virtual reality, three-dimensional manipulation interface, VR-based web browser, direct manipulation, slider-based manipulation interface
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