Just tried this in the office with my phone. Impressive! You should submit this as a Show HN - really deserves to get some reviews.
Good fun for those with kids and even mucking around in the office demoing to friends.
You should throw some more money at this to get a few dozen more models/pages going. I can't think of a 1-5 yo that wouldn't like this. Colleague with children said "My kids are going to lose their shit when they see this."
Wow, the demo video is really remarkable! I will try it out with the office iPad tomorrow. Really great job! The video speaks a thousand words even without any spoken words. =) How do you align the coloring book pages from the camera feed? Do you detect the corners of the printer paper or is there some printed, hidden marker on the page?
I'm not involved with the app, but there's no need for a hidden marker in this case -- the page IS the marker. It is a planar surface with one of a few known black and white images on it. So: Detect features in each blank drawing, store them in a database included in the app, then use the same corner detector and descriptor at runtime and you have a very constrained feature matching problem.
Our 3D modeller Shun spends about a week per page carefully designing and animating the models. You are correct, they are per page and completely pre-defined. The fun part is colouring in the pages and seeing the results :D
Even me, 28 year old male, can have a lot of fun with this app.
Personally I'd like to do that but we have a lot of limitations with the Unity platform and supporting multiple platforms. Every feature needs to be implemented at least 2 times (iOS, Android) and tested.
Perhaps in the future once we get some money coming into the company. Right now we don't have any more funds left for development.
I'm sure this has already been discussed, and I know this falls under "easier said than done", but you guys should really try to get this on toy aisle shelves. Perhaps in the form of a book? Maybe have a prominent "Try me!" feature on the cover instructing the user to install the free app and point it at the cover to get people pulled in.
I tried installing colar app on an Android 2.3.6 (Samsung GT-S5300) phone, but it seems it's not compatible with that device. It's a low-end phone, so I guess I will need something more powerful.
Since Google Play doesn't display the device compatibility anywhere in the store (besides "This application is not compatible with your device") could you please state the application requirements somewhere on your pages?