Touch Projector

Touch Projector: Mobile Interaction through Video [1]


This paper is about a projector that would be on a mobile device that can be used with the surrounding environment. It is an improved on an idea that was proposed in 1992.


1) One strength is that it only tracks the objects that are in the targets viewing area, and also it mimics the familiar feel of click and drop when going from one view to another.

2) The next thing is that it is able to zoom in automatically, so if it detects that something is to far away, or to small, it will zoom in so that the user will have an easier time trying to get to what they want. Also, in addition, the user can zoom in and out as they wish (The auto-zoom however outperformed the manual zoom in performance).

3) Finally, the projector allows you to freeze the image on the device so that you can work with the current environment without having to worry about keeping the projector in one spot.


1) They came up with some good ideas to try and counter the small movements that humans make, and they did improve it greatly; however, it still seemed that that was a big issue to still try and solve because those improvements were still causing failures when used.

2) That the Touch Projector needs to have at least one of the items on the wall in full view or else it will not be able to detect the wall, which from what the article is saying, can be fixed with better resolution cameras.

3) Even though the freezing was a very good idea and had better efficiency, a drawback is that it was hard to take a picture without getting a blur in it

1. Sebastian Boring, Dominikus Baur, Andreas Butz, Sean Gustafson, Patrick Baudisch, Touch Projector: Mobile Interaction through Video.