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首页> 外文会议>International Conference on Computational Science - ICCA 2003 Pt.1 Jun 2-4, 2003 Melbourne, Australia and St. Petersburg, Russia >A Hand Tracking for a Human Computer Interaction System by the Modified Block Matching Algorithm
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A Hand Tracking for a Human Computer Interaction System by the Modified Block Matching Algorithm

机译：改进的块匹配算法在人机交互系统中的手跟踪

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摘要

A GUI (graphical user interface) has been a dominant platform for HCI (human computer interaction). A GUI-based interaction has made computers simpler and easier to use. The GUI-based interaction, however, does not easily support the range of interaction necessary to meet users' needs that are natural, intuitive, and adaptive. In this paper, the modified BMA (block matching algorithm) is proposed to track a hand in a sequence of an image and to recognize it in each video frame in order to replace a mouse with a pointing device for a virtual reality. The HCI system with 30 frames per second is realized in this paper. The modified BMA is proposed to estimate a position of the hand and segmentation with an orientation of motion and a color distribution of the hand region for real-time processing. The experimental result shows that the modified BMA with the YCbCr (luminance Y, component blue, component red) color coordinate guarantees the real-time processing and the recognition rate. The YCbCr color coordinate requires less bits to be coded than the RGB (red, green, blue) color coordinate with omitting the luminance of each pixel color and has less sensitivity to surrounding circumstances. The hand tracking by the modified BMA can be applied to a virtual reality or a game or an HCI system for the disable.
机译：GUI（图形用户界面）一直是HCI（人机交互）的主要平台。基于GUI的交互使计算机更加简单易用。但是，基于GUI的交互无法轻松支持自然，直观和自适应的满足用户需求所需的交互范围。在本文中，提出了一种改进的BMA（块匹配算法）来跟踪图像序列中的手，并在每个视频帧中对其进行识别，从而用鼠标代替虚拟现实的指示设备。本文实现了每秒30帧的HCI系统。提出了改进的BMA，以估计手的位置和具有运动方向和手区域颜色分布的分割，以进行实时处理。实验结果表明，改进后的BMA具有YCbCr（亮度Y，蓝色，红色）的坐标，保证了实时处理和识别率。与YCbCr颜色坐标相比，与RGB（红色，绿色，蓝色）颜色坐标相比，需要编码的位数更少，并且忽略了每种像素颜色的亮度，并且对周围环境的敏感性较低。修改后的BMA进行的手部跟踪可以应用于虚拟现实或禁用的游戏或HCI系统。

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