---
license: apache-2.0
tags:
- sam2
- segment-anything
- video-segmentation
- tracking
- microscopy
pipeline_tag: mask-generation
---

# SAM2 Tiny (Cell and Bacterium Tracking)

The SAM2 tiny checkpoint used in the Model Garden **Cell and Bacterium
Tracking** demo: class-agnostic video segment-and-track where pretrained
detectors have no labels, e.g. a neutrophil chasing a bacterium.

## Method

Human-seed-then-propagate: a few clicks lock the right object, then SAM2
propagates masks across the rest of the frames autonomously. **No training
required.**

## Provenance

This is the `sam2_hiera_tiny` checkpoint from
[`facebook/sam2-hiera-tiny`](https://huggingface.co/facebook/sam2-hiera-tiny),
re-hosted here for the Model Garden showcase. All credit to Meta AI.

## Usage

See the [SAM2 repository](https://github.com/facebookresearch/sam2) for the
video predictor API.