Handheld projector systems have the potential to enable users to dynamically augment environments with digital graphics. We explore new parts of the design space for interacting using handheld projection in indoor spaces, in particular systems that are more "aware" of the environment in which they are used. This is defined broadly as either spatial awareness, where the projector system has a sense of its location and/or orientation; or geometry awareness, where the system has a sense of the geometry of the world around it, which can encompass the user‟s hands and body as well as objects, furniture and walls. Awareness like this can be enabled through the use of sensors built into the handheld device, through infrastructure-based sensing, or a combination of the two. This paper seeks to better understand the interactive possibilities this type of awareness affords mobile projector interaction. Previous work in this area has predominantly focused on infrastructure-based spatial-aware projection and interaction.

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上两个视频

QCAR貌似是可以免费用于商业用途的，这让Total Immersion和Metaio情可以堪，这两位的Studio和key都是天价。

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Bruce Sterling 推荐的，不用废话了。

This is a fine piece of comprehensive research work. If you’re an AR developer or content guy, you’re gonna want a printout of this lying around, so you can brandish it at people. You’ll look like you know what you’re talking about!

http://observatory.jisc.ac.uk/docs/AR_Smartphones.pdf

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via

一直觉得AR跟数字艺术结合起来很是夺人耳目。可以起名为AR²T，是ARART的简写。 现在的AR演示往往流于粗糙，简陋不堪。如果把AR从业人员和数字艺术家丢到一个工作室，肯定能出不少好玩的应用。 贴两个视频。

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看到这个新闻时还是挺激动的，一是有人做了这么详尽的一个市场调查，二是报告的内容似乎相当乐观，宣称到2015年Mobile AR应用的收入会达到22亿美元。（如果现在起跑，是不是还有机会分一杯羹呢？）郁闷的是这个报告是收费的，要价大概1000欧左右。看来是无缘阅读了。贴一下摘要：

Augmented reality has the potential to change how people interact and experience their surrounding environment, and by combining the technology with the mobility and computing power of sophisticated smartphones, augmented reality will impact almost every industry, particularly retail, entertainment, travel and advertising. ARCchart forecasts that revenues generated from mobile phone augmented reality applications will reach $2.2 billion by 2015.

Topics of coverage include:

• Computer vision – image recognition, tracking and content anchoring
• Basic and Advanced augmented reality experiences
• AR applications
• Revenue strategies
• Market barriers and growth drivers
• The augmented reality ecosystem
• Company profiles
• Brands and advertising
• Maps, street view and real-world image databases

Companies mentioned, discussed or reviewed include:（还是有不少没听过的名字啊）

Answers and opinions are provided with respect to the following essential questions:

• What is augmented reality?
• What technology challenges must be addressed before full AR is achieved?
• What are the essential device hardware features required to support AR?
• Which industry giants are best positioned to dominate AR?
• How many AR-enabled handsets will there be by 2015?
• What are the five web services necessary for a complete AR solution?
• How is revenue from AR apps forecast to grow?
• What incentives do carriers have for embracing AR?
• Where is venture capital funding flowing into AR?
• How will revenue from Advanced AR apps compare to revenue from Basic apps?

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高通放出了android平台上的augmented reality develop kit。终于，做AR的门槛又降低了一些，你不必懂得cv，不必为图像识别，姿态估计而伤神，读读API就搞定，省下来精力全给想象力吧。

从上图这个例程图片来看，这个sdk里面起码包含了自然图像识别定位。但是不开放源码，真是让凌晨还在更新网站的人倍感蛋疼。

到这里下载和看例程。

中国馆的清明上河图相当的赞，一副画卷在长廊的墙壁上徐徐展开，粗粗估计一下，至少用了15个投影仪，画中灯光水影，市井里人来人往，客栈里人声鼎沸。有那么一瞬间，我感觉我像是轩辕剑三之天之痕里的正要找个杂货店买些天仙玉露的陈靖仇。。。

芬兰馆多点触摸头

摄像头特写--貌似深度摄像

芬兰馆里有一个多点触摸屏，见上图，不知道是不是用的上次cvchina介绍过的optirima的深度摄像头，我特意拍了下摄像头的特写，可惜貌似啥也看不清。

芬兰馆的增强现实演示用的marker，跟百度有一腿吧

巨不给力的演示。唯一吸引我的是这只N900。

上面两张图是芬兰馆里的增强现实演示，真是太烂了啊。。。就识别一个marker，然后放个卡通人物进去。我表示很无语。

芬兰馆的迷你蓝幕

芬兰馆的迷你蓝幕

上面的两张图还是来自芬兰馆的展台，迷你的蓝幕技术展示，不说啥了。

法国馆里的基于摄像头的互动展示

上图是来自法国馆的一个互动展位，参与者可以用手去接屏幕上左右两侧掉落的虚拟物体，也就跟上海科技馆那个接垃圾的展示一个水平吧。

莫名其妙的创新展位

上图是创新的一个莫名其妙的展示，跟什么监控，什么Zii相关来着。没看懂，从上图的模糊程度来看，估计你也看不懂。

传说中的一格公司的虚拟彩妆系统

虚拟彩妆系统展位

最后是，当当当当，传说中的虚拟彩妆展示，见上图。本来觉得40多吋的屏挺大的，但是搁在世博会，真是不起眼。。。

看完世博会，一个最大的感觉就是各种投影仪，各种大屏幕，IMAX不算啥，不整个十来个投影仪一块工作都不好意思说自己大。

说到多投影仪，这里就有个问题，多投影仪是怎么做对齐，同步的呢？如果遇到投影面是倾斜，或者弯曲的，该怎么处理呢？

下面有视频，但是太短了，完全不过瘾。奇怪的是，为嘛主页上都没啥信息呢？

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