Augmented reality App for Ring Wearing On finger in iPhone

[Vips]

i want to make augmented reality application. in which when i put my hand under iphone camera and the hand appear on the screen and then just i have to select ring which is displayed on that app and it get wear on finger.

for example of my feature application you can see the below link.

http://www.youtube.com/watch?gl=SG&hl=en-GB&v=WYFMDQ92x_8

As you see this link video you would get idea that which type of application i need to buildup for iPhone.

can anyone please guid me for my application.

and i also want to know that which framework to be used and is there any lib to be used for app.

 

 

Thanks