一種基于Leap Motion的直觀體交互技術(shù)
doi: 10.11999/JEIT140370 cstr: 32379.14.JEIT140370
基金項(xiàng)目:
國(guó)家十二五科技支撐計(jì)劃(2012BAH33F04)和國(guó)家自然科學(xué)基金(61001168)資助課題
A Leap Motion Based Intuitive Volume Interaction Technology
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摘要: Leap Motion系統(tǒng)可高精度實(shí)時(shí)檢測(cè)并跟蹤手掌、手指的位置和速度等信息，為大屏幕、遠(yuǎn)距離體交互提供有效途徑。通過觀察用戶手勢(shì)遠(yuǎn)距離操控現(xiàn)實(shí)環(huán)境中的物體，該文設(shè)計(jì)易于理解的體交互操作手勢(shì)；借助對(duì)Leap Motion傳感器工作區(qū)域的遠(yuǎn)近場(chǎng)劃分，建立合理的物理空間和信息空間映射關(guān)系；針對(duì)利用深度相機(jī)的手部姿態(tài)解算問題，結(jié)合Leap Motion傳感器的特點(diǎn)，提出一種結(jié)合手掌法向和指尖向量的空間姿態(tài)算法；結(jié)合大屏幕體交互的任務(wù)特點(diǎn)，設(shè)計(jì)了支持連續(xù)數(shù)據(jù)流的非接觸式體交互原型系統(tǒng)；最后通過用戶實(shí)驗(yàn)對(duì)原型系統(tǒng)進(jìn)行評(píng)估。結(jié)果表明，和傳統(tǒng)的2D體交互比較，該文算法的用戶體驗(yàn)和表現(xiàn)更為自然、直觀和高效。
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關(guān)鍵詞:
- 人機(jī)交互 /
- 虛擬現(xiàn)實(shí) /
- 體可視化 /
- 體交互
Abstract: The Leap Motion sensor can detect the position and speed information of hands and fingers with high precision in real-time, which provides an effective way for volume interaction with large screen at long-distance. A set of understandable gesture for volume interaction is designed by observing gestures of the users to control the remote real objects. By dividing the near and far field regions of the Leap Motion sensor, a reasonable mapping between physics space and information space is established. According to the estimation solution for hand orientation with Depth Camera, an orientation estimation algorithm combining hand normal vector with fingertip vector is proposed using Leap Motion sensor. In addition, a non touching volume interaction prototype is designed for large screen application, and the prototype evaluation is given through the user experiment. Experimental results show that the proposed algorithm can provide a more natural, intuitive and efficient user experience compared with the traditional 2D volume interaction. -
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