Q: What does the video show ?
A: The video shows visual “queries” from a mobile phone being matched against a database of thousands of images which describe an indoor locale. The matched locations are indicated by a red dot on a map.
Q: Why is this useful ?
A: In its current form, the technology is notuseful. What it does illustrate is a concept, in early prototype, by which visual cues can contribute to indoor navigation.
Q: Is this the same as SLAM/PTAM
A: Most emphatically, NO. SLAM or PTAM have a vital role to play in visual navigation, but we are interested more in localisation and navigation than mapping in the “live” assistive context. For more about SLAM (a cool, visually-based mapping and localisation technology) or its latest incarnations, please see the groups ofAndrew Davison @ Imperial or David Murray@ Oxford.
Q: Why not use WiFi Positioning?
A: WiFi won’t tell you where navigational hazards might lie, or where physical obstructions are. The reality is that a combination of sensors is required to accurately and reliably provide assistive navigation. Ditto, GPS.
Q: Where can I download this App?
A: Not from us: our aim is to work on the core technologies that will make the visual processing BETTER than it is – improving accuracy, reducing latency, and enabling scalable solutions to be created.
Q: I don’t see how this can work
A: Talk to us about the 10 year plan for the Picture This project. You may change your mind.