Follow up EX#13

Problem 1

Issue 1:

 You got to have a 3d model first. Then you do object detection and obstacle avoidance.

Refer to https://claude.ai/share/cf3e540d-c68d-40a4-a825-7bbd6b413fc3

Issue 2: 

未完成這題要用溜冰場情境(如照片)，

如何套用 https://claude.ai/share/8ac9c5a7-4944-41e7-a1af-027635b14dac