How to Fine-Tune SAM-2.1 on a Custom Dataset

Released by Meta Research in September 2024, SAM-2.1 is the latest iteration in the Segment Anything model series, demonstrating superior performance over its predecessor, SAM-2, across various datasets. The guide provides a comprehensive walkthrough on fine-tuning SAM-2.1 for specific use cases, such as segmenting detailed components of a car, using a custom dataset. It highlights the process of preparing a segmentation dataset with Roboflow, exporting it for use in Colab, and setting up SAM-2.1 for training. The model can be fine-tuned on a single GPU, with this guide recommending the use of an A100 for optimal speeds. The tutorial concludes with visualizing model predictions using the supervision Python package, showcasing the enhanced precision of a fine-tuned SAM-2.1 model compared to its base version. The detailed instructions cater to those aiming to deploy SAM-2.1 in production environments requiring domain-specific segmentation improvements.