There may be many sensor technologies commercially available, but there are not many places that explicitly allows you to experience or discover something new; Inter Communication Center, ICC, in Shinjuku, is one of the few places that holds such interactive pieces as both permanent and temporary exhibitions.
Transform Yourself Exhibition, is a summer kids program held by ICC this year. One of the people behind this is Masahiko Sato, who blew our minds with TV programs like Pithagoraswitch.
The place does not allow photos "not to disturb the equipments inside", so unfortunately I have no photo. But you can go to their website to see the concept of each work they have exhibited.
My favorite was the Dot Man, Line Man, which allowed us to experience the motion trackers using dot markers place on each joint. Your motions are smoothly captured and transformed into dots, lines, cells, and many other things by adding effects.
My entire family enjoyed Arithmetik Garden. The idea is simple. Here you use your body to make calculations instead of using pen and paper. First you are given a tag with a number written on. A tag has a IC tag behind, which will track what will happen from now on (mine was "4"). Then you enter a dark wooden floor area with large white gates standing. Each gate has a specific formulate written on it at top, like "x3", "/2", "+8", "-4". Your goal is to go through these gates to make calculations and ultimately create a number 73 upon exiting. It's confusing first, but becomes real fun as you learn to move your body as you process information in your brain.
Each piece appears simple because the idea is executed without delay and buggy codes appearing on screen. You can feel something new because technology is invisible. I would even call this a perfected simplicity - it's really fun for both adults and kids. If you happen to be near by this summer, I recommend a visit.
By the way, if you are wondering about the entrance fee, it's all free of charge. A perfect place for a family to be in.
Inter Communication Center (ICC): http://www.ntticc.or.jp