remove "Mouth21"

[hunminkim98]

Hello Dr. David,

While testing DeepSort with COCO_133, I noticed a poor connection between the Lwrist and Mouth nodes. Upon further investigation, I realized that the face should have 68 keypoints, but the current COCO_133 in the skeleton.py contains 69. I suspect this discrepancy may have caused the issue.

To test this hypothesis, I removed the last mouth node (Mouth21). As a result, the tracking now appears to be working more reasonably!

Current version: 69 face keypoints (Jaw1 (id=13) to Mouth21 (id=91))

Modified version: 68 face keypoints (Jaw1 (id=13) to Mouth20 (id=90))

Thanks for reading!

Best regards,
HunMin Kim

[davidpagnon]

Thanks for spotting this! Merged to main.