An effective real-time fingertip positioning system based on gradient information extraction from frame image sequences

An Wang, Haiming Lu, Huaxiang Lu
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引用次数: 2

Abstract

This paper presents a writing-in-the-air fingertip positioning system using a camera as an input to a computer. The frame difference method is employed to extract the finger movement area and the vertical gradient is calculated in this area to extract the fingertip contour information. Then the fingertip is located by finger geometric properties. 1000-photos library is built to stimulate various operating environments and test the effectiveness of this system. The system achieves a speed of 100 frames per second (fps) with an accuracy rate of 97.0%.
基于帧图像序列梯度信息提取的有效实时指尖定位系统
本文介绍了一种利用摄像机作为计算机输入的空中书写指尖定位系统。采用帧差法提取手指运动区域,并在该区域计算垂直梯度,提取指尖轮廓信息。然后根据手指的几何属性定位指尖。建立1000张照片库,模拟各种操作环境,测试系统的有效性。系统实现了每秒100帧(fps)的速度,准确率为97.0%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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