Non-contact Measurement Method Research Based on HoloLens

In this paper, a non-contact measurement method with interactive functions is proposed based on the HoloLens, a mixed-reality product of Microsoft. By scanning the measurement space using the depth camera on the HoloLens and by determining the measurement points using the Gaze and Gesture functions, this method enables non-contact measurement and automatic calculation of the distance, area and volume between the target points. Furthermore, it supports speech recognition for interaction. Compared with traditional measurement tools, the interactive measurement tool developed in this paper allows its users to take measurements in a more natural, contact-freeway. Its broader measurement range, automatic calculation of area and volume while measuring distances, and the ability to measure places that are difficult for the traditional measuring tape, are showing good application value.