detect multiple people posture

Hi, This demo does not seem to detect multiple people posture ?

The issue is about the demo's inability to detect multiple people. Start by examining the demo script and the model's forward pass to understand how poses are currently processed. Look for batch processing or multi-person detection logic. Check if the model outputs single or multiple heatmaps. 'Done' means the demo can process an image with several people and output all their keypoints.

索引モデルが issue の本文から書いたものです。