Demo.py visualizes ground truth

[jrahim]

Hi! The demo is misleading. While going through the code, it seems the ground truth is being visualized, and the code to visualize prediction is commented out. This needs to be fixed.

[hitWXF]

i find the same problem

[WHHHHY]

Hello, did you manipulate demo.py and visualize it successfully? When I was visualizing a custom dataset, I found that I couldn't visualize the results, and the picture saved in the path"pose_vis" only showed a red dot