After talking to Dan'O, he gives me some advice. I list them as follows.
Direction:
1. Find the existing framework and use it.
2. Write the code by my own.
3. Use the laptop instead of mobile phone.
Suggestion:
1. Find out the socket to talk to the Processing or Flash. (Michael)
2. Think more about the concept. (If everything done, what will happen?)
3. Write a “Hello augmented reality” program and run it on mobile phone.