基于多点触控技术的办公桌

        多点触控技术作为一项新技术，完全改变了人与电脑的交互方式。但基于此技术的软件产品和应用还较少。本作品基于多点触控技术，利用“嵌入之星”嵌入式开发平台，构建了一个集个人信息处理与多人会议功能的办公桌平台，面向广大的办公室人群。此办公桌最大的特点是同时支持多个输入，即多人交互可以在一个办公桌上完成，极大的方便了办公室人群。

        本系统搭建了基于DI技术的办公桌，内嵌高分辨率摄像头捕捉多指触控的图像信息，再利用酷睿双核CPU的高性能特点进行图像处理，得到一系列用户操作消息。办公桌内嵌的投影仪使得桌面可实时显示用户操作的内容，整个桌面就相当于一个超大的触摸屏。软件部分，本小组自行设计了基于多点触控消息操作的办公软件，支持四人同时操作。软件包含了绘图、写字、日程表、通讯录、发电邮等办公功能，也包含了图片浏览、视频浏览、小游戏等娱乐功能。这些软件听名字都很常规，但是用户操作方式的创新使其拥有更多易用的特性，以前多次的鼠标点击的效果现在也许只要两个手指的拖动就能实现。

As a brand new technology, Multi-Touch has changed the way people interact with computers completely. But the software products based on such technology has not been developed much. Our product is based on Multi-Touch technology and the “Embedded Star” platform, it is an office table which is able to process personal data and hold office meetings. The key feature of the desk is supporting multiple inputs, which means four people can work on the same desk simultaneously, which greatly facilitates their work.

This system consists of a desk with DI (Diffused Illumination) technology, and a high-resolution video camera to capture the image of finger touch, and Core Duo CPU to process the image, in order to translate the light blob images into the messages that users send to the system. The desk is embedded with a projector so that everything is displayed simultaneously on the surface of the desk. This makes the desk a huge touch screen. As for the software, we designed a set of office tools based on Multi-Touch operations, which makes it possible for four people to work on the desk at the same time. The office tool includes paint, words, calendar, address book, email; there are also entertainment parts such as image browsing, video playing, and fancy little games. These software sound familiar, but as the finger interaction is introduced, they have become easy to use, some operations involving several mouse clicks may be replaced by two fingers dragging.
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