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A Low-cost Efficient Approach to Synchronize Real-world and Virtual-world Objects in VR via In-built Cameras

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PubDate: December 2022

Teams: Xi’an Jiaotong-Liverpool University

Writers: Chaoyi Liu;Rongkai Shi;Nan Xiang;Jieming Ma;Hai-Ning Liang

PDF: A Low-cost Efficient Approach to Synchronize Real-world and Virtual-world Objects in VR via In-built Cameras

Abstract

Virtual reality (VR) technology has become a growing force in entertainment, education, science, and manufacturing due to the capability of providing users with immersive experiences and natural interaction. Although common input devices such as controllers, gamepads, and trackpads have been integrated into mainstream VR systems for user-content interaction, they cannot provide users with realistic haptic feedback. Some prior work tracks and maps the physical objects into the virtual space to allow users to interact with these objects directly, which improves users’ sense of reality in the virtual environment. However, most of them use additional hardware sensors, which inevitably increases the cost. In this research, a lightweight approach is proposed to synchronize the positions and motions between physical and digital objects without any extra costs. We use the real-time captured video data from in-built cameras on a VR headset and employ feature points based algorithms to generate projections of the physical objects in the virtual world. Our approach does not rely on additional sensors but just uses components available in a VR headset. Our approach allows users to interact with target objects with their hands directly without the need for specially designed trackers, markers, and other hardware devices as used in previous work. With our approach, users can get more realistic operational feedback when interacting with corresponding virtual objects.

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