Tuesday, November 3, 2009
History of Mobile Augmented Reality
This web page summarizes the major milestones in mobile Augmented Reality since 1968. The list was compiled by the member of the Christian Doppler Laboratory for Handheld Augmented Reality for the ISMAR society.
Tuesday, August 4, 2009
Friday, April 17, 2009
10 Best Computer Interfaces
Here is a list of best computer interfaces given at Technology Review.
Although it appears that Command Line is a history as far as ordinary users are concerned. However, it is the most popular and the best user interfaces with in programmers/developers community, and is not likely to be replaced.
The 41 years old technology, Mouse is perhaps the most used interfaces device along with the keyboard. However, touch screens are now replacing this. Already, a lot of mobile phones are available in the consumer marker with touch screen.
However, the future user interfaces will be based on Gesture recognition, Voice recognition and Augmented Reality (including Spatial). Thus, traditional Screen-Keyboard-Mouse interfaces will be replaced with Camera-Projector-Microphone-Motion Sensors interfaces. The MPAR will be a revolution in Human Computer Interaction, and is beginning to happen now.
- The Command Line
- The Mouse
- The Touchpad
- The Multitouch Screen
- Gesture Sensing
- Force Feedback
- Voice Recognition
- Augmented Reality
- Spatial Interfaces
- Brain-Computer Interfaces
Although it appears that Command Line is a history as far as ordinary users are concerned. However, it is the most popular and the best user interfaces with in programmers/developers community, and is not likely to be replaced.
The 41 years old technology, Mouse is perhaps the most used interfaces device along with the keyboard. However, touch screens are now replacing this. Already, a lot of mobile phones are available in the consumer marker with touch screen.
However, the future user interfaces will be based on Gesture recognition, Voice recognition and Augmented Reality (including Spatial). Thus, traditional Screen-Keyboard-Mouse interfaces will be replaced with Camera-Projector-Microphone-Motion Sensors interfaces. The MPAR will be a revolution in Human Computer Interaction, and is beginning to happen now.
Towards Natural Features Tracking
The fiducial markers for AR applications provide robust tracking capabilities. However, it is more desirable to use natural features in the scene to estimate 6 DoF pose of the camera. The Studierstube Team at Graz University of Technology have demonstrated robust Natural Feature Tracking (NFT) for known planar surfaces. They use modified versions (for hand held devices) of SIFT and FERNS to compute and match features in the scene.
More details can be found in the following paper:
Daniel Wagner, Gerhard Reitmayr, Alessandro Mulloni, Tom Drummond and Dieter Schmalstieg, "Pose Tracking from Natural Features on Mobile Phones", ISMAR 2008
More details can be found in the following paper:
Daniel Wagner, Gerhard Reitmayr, Alessandro Mulloni, Tom Drummond and Dieter Schmalstieg, "Pose Tracking from Natural Features on Mobile Phones", ISMAR 2008
Tuesday, March 31, 2009
An Unbranded Projector Phone
Check this unbranded projector phone on sale at ChinaVision. The price is unbelievable considering features it has. The interface looks remarkably similar to iPhone, while over all look is similar to Nokia.
See Full Specifications.
See Full Specifications.
Monday, March 30, 2009
Explay Projection Engine
The smallest LASER projector is developed by Explay based on technology by Kopin.
See Official Specifications.
Samsung Projector Phone
Major players in mobile phone market have developed first prototypes after acquiring nano or pico projector technology from third parties. The following videos shows Samsung mobile phone with an embedded projector from Texas Instruments:
Monday, March 2, 2009
Sixth Sense by Fluid Interface Group
The MIT Fluid Interface Group demonstrated a new application of Mobile Projective Augmented Reality (MPAR). They call it SixthSense. Their wearable system converts any surface into interactive display using a mobile nano-projector. The user interaction is done using colored markers on fingers. The system is connected to internet, and able to display real time information related to subject, for example, while reading a news paper, it can display related videos, or while searching for a book, it can display rating and related information from websites such as Amazon or Wikipidea. See the demo videos below:
Here are some of my initial comments after watching above video clips:
In summary, its nothing special or new... They have just presented some potential applications of the existing technology. For these applications, a lot of research is required in these domains: pattern or object recognition, natural feature tracking, gesture recognition and data mining.
Here are some of my initial comments after watching above video clips:
- They don't use any pattern or object recognition, e.g. in newspaper demo, markers can be clearly seen to identify the region to display the video.
- I doubt they use face recognition to identify the person... However, they are able to project correct geometry on planar as well as non-planar surfaces to some extent..
- I dont believe they use real time information, e.g. in taxi, the information about airport is displayed on the boarding pass, moreover in this demo, the information on ticket is not read or recognized automatically. However, this could be very interesting application.
- They did implement some marker based gesture recognition algorithm. However, number of gestures recognized are limited to specific application only.
In summary, its nothing special or new... They have just presented some potential applications of the existing technology. For these applications, a lot of research is required in these domains: pattern or object recognition, natural feature tracking, gesture recognition and data mining.
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