Update colab notebooks

[RizwanMunawar]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhancements made to Ultralytics YOLO notebooks improve object counting, heatmap generation, and human exercise monitoring workflows. 🚀

📊 Key Changes

• Object Counting Enhancements:
  • Simplified workflow for processing video streams or RTSP inputs for object detection.
  • Added functionality to define region coordinates and output object tracking data visually.
  • Integrated streamlined video-writing functionality for saving results.
• Heatmap Generation Improvements:
  • Improved heatmap video generation and optional object-counting regions for granular insights.
  • Enhanced process for tracking object density in video frames.
• Workout Monitoring Updates:
  • Introduced the AIGym class for exercise tracking like push-ups and squats.
  • Added automatic pose detection, keypoint tracking, and repetition counters to fitness videos.

🎯 Purpose & Impact

• Purpose:
  • To streamline object detection workflows for flexible video input formats.
  • Provide tools to visualize activity distributions (heatmaps) or track human exercises effectively.
• Impact:
  • Easier deployment in diverse scenarios like traffic monitoring, fitness tracking, or retail analytics.
  • Enhanced video input/output handling ensures smoother integrations and user experience. 🎥
  • Fitness-specific advancements bring value to exercise monitoring systems and gyms. 🏋️‍♂️

[UltralyticsAssistant]

👋 Hello @RizwanMunawar, thank you for submitting an ultralytics/notebooks 🚀 PR! To ensure a seamless integration of your updates, please review the following checklist:

• ✅ Define a Purpose: Your PR has a clear and descriptive purpose—thank you for providing detailed descriptions of your enhancements! Please make sure all accompanying commit messages are also concise and adhere to the project's conventions.
• ✅ Synchronize with Source: Confirm your branch is synced with the ultralytics/notebooks main branch. If it's behind, update it by clicking the 'Update branch' button or running git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: Verify that the Continuous Integration (CI) checks are passing. If any fail, please address these issues in your code.
• ✅ Update Documentation: You’ve included improvements to the information within notebooks—thank you! Please ensure the updates align with the broader documentation style.
• ✅ Add Tests: Where applicable, confirm tests cover new or modified functionality and verify they’re passing successfully to maintain notebook fidelity.
• ✅ Sign the CLA: If this is your first contribution, ensure you’ve signed our Contributor License Agreement (CLA) by commenting "I have read the CLA Document and I sign the CLA" below.
• ✅ Minimize Changes: Keep changes limited to what's necessary to address the purpose of the PR. This ensures clarity in the diff and helps expedite reviews 🎯.

🧐 A few suggestions to enhance clarity:

• Given the larger diffs, please confirm all compatibility with prior functionality and tools (e.g., Colab, video processing pipelines). If specific workflows were updated, double-check their expected input/output formats.
• If applicable, kindly provide a sample output or screenshots—users love to see visual end results, especially for expanded features like enhanced heatmaps or workout monitoring.
• For bug fixes or performance issues, we’d appreciate a minimum reproducible example (MRE) alongside sample data if possible, to help us quickly validate the improvements.

✅ For more contribution details, please review our Contributing Guide.

🚀 Thank you again for your valuable contribution to Ultralytics. This is an automated response to facilitate review, but an Ultralytics engineer will also respond shortly with further feedback or approval. Let us know if you have any specific questions or concerns 🌟

[UltralyticsAssistant]

🎉 Huge thanks to @RizwanMunawar for the amazing PR and to @lakshanthad for the invaluable contributions – your work has officially been merged! 🚀

From object counting to heatmaps and fitness tracking, the innovations you’ve brought will empower users across fields and inspire creative solutions to real-world challenges. 🌍

As Marcus Aurelius once said, "What we do now echoes in eternity." Your efforts today will surely resonate in applications from smarter cities to healthier lives. 🏙️🏋️‍♂️

Thank you for making a difference. Together, we're transforming possibilities into realities. 🙌