Abstract
Leap Motion has become widely used due to its ability to recognize intuitive hand gestures or accurate finger positions. Attaching a Leap Motion to a virtual reality head-mounted display (VR HMD) is highly interoperable with virtual objects in virtual reality. However, it is difficult for a virtual reality application to identify the accurate position where the Leap Motion is attached to the HMD. This causes errors in the positions of the actual user’s hands and the virtual hands, which makes the interaction in virtual reality difficult. In this paper, a method that calibrates an output area in VR HMD and a sensing area in Leap Motion is proposed. The difference in the origin coordinate between VR HMD and Leap Motion is derived using the proposed method. The position of the Leap Motion attached to the HMD was determined through an experiment using the proposed calibration technique, and the error was approximately 0.757 cm. Accordingly, it enables more intuitive interactions in virtual reality applications.
Highlights
Leap Motion (LM) is a sensor device that recognizes the user’s fingers
The interaction method using LM over the virtual reality headmounted display (VR head mounted display (HMD)) is expected to play an important role in enhancing reality for users
A method to calibrate the difference in location between Virtual Reality (VR) HMD and LM was proposed for enhancing the VR interaction
Summary
Leap Motion (LM) is a sensor device that recognizes the user’s fingers. It offers excellent interoperability with the head mounted display (HMD) [1] and is frequently used while attached to one. A method that can estimate the 2D location of HMD and LM inside the 2D camera image can be applied after an Infrared (IR) LED shared by HMD and LM is inputted using an infrared sensor. Head‐mounted display and Leap Motion calibration method In this paper, color and IR images of the VR HMD and LM are acquired using a color-IR camera to estimate the position of the VR HMD and LM attached to the device.
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