ultralytics/ultralytics v8.2.73

v8.2.73 - `ultralytics 8.2.73` Meta SAM2 Refactor (#14867)

on GitHub

🌟 Summary

The v8.2.73 release of Ultralytics introduces significant updates to the Segment Anything Model (SAM) architecture, including new support for SAM 2, which enhances real-time image segmentation capabilities and documentation improvements.

📊 Key Changes

• Addition of SAM 2 Models: Introduced new methods for building various SAM 2 models, including build_sam2_t, build_sam2_s, build_sam2_b, and build_sam2_l.
• Enhanced Documentation: Added comprehensive documentation for SAM and SAM 2 modules, including blocks, decoders, encoders, and memory attention modules.
• Updated Predictors: Integrated SAM2Predictor for advanced segmentation prediction, enhancing the overall prediction framework.
• Expanded API References: Updated the API references to include new SAM2 modules and their functionalities, ensuring better clarity and usability for developers.

🎯 Purpose & Impact

• Improved Segmentation Capabilities: The addition of SAM 2 models significantly enhances the real-time image segmentation capabilities, allowing users to leverage advanced features for more accurate and efficient segmentation tasks.
• Comprehensive Documentation: The improved and expanded documentation provides detailed references and examples for both SAM and SAM 2 models, making it easier for users to understand and implement the models in their projects.
• Upgraded Prediction Framework: The integration of SAM2Predictor ensures that the prediction framework is robust and capable of handling advanced segmentation tasks, benefiting users with more reliable and efficient predictions.

🔧 Technical Details

• Model Initialization: Enhanced the initialization and building process for SAM and SAM 2 models, ensuring that the models are correctly configured with the specified architecture parameters.
• Attention Mechanisms: Improved attention mechanisms with the introduction of SAM2TwoWayAttentionBlock and SAM2TwoWayTransformer, providing more efficient attention computations in the models.

What's Changed

• ultralytics 8.2.73 Meta SAM2 Refactor by @Laughing-q in #14867

Full Changelog: v8.2.72...v8.2.73