---
description: Explore the detailed API reference for Ultralytics SAM 2 models.
keywords: Ultralytics, SAM 2, API Reference, models, window partition, data processing, YOLO
---

# Reference for `ultralytics/models/sam2/modules/utils.py`

!!! Note

    This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam2/modules/utils.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam2/modules/utils.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/models/sam2/modules/utils.py) 🛠️. Thank you 🙏!

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## ::: ultralytics.models.sam2.modules.utils.select_closest_cond_frames

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## ::: ultralytics.models.sam2.modules.utils.get_1d_sine_pe

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## ::: ultralytics.models.sam2.modules.utils.init_t_xy

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## ::: ultralytics.models.sam2.modules.utils.compute_axial_cis

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## ::: ultralytics.models.sam2.modules.utils.reshape_for_broadcast

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## ::: ultralytics.models.sam2.modules.utils.apply_rotary_enc

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## ::: ultralytics.models.sam2.modules.utils.window_partition

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## ::: ultralytics.models.sam2.modules.utils.window_unpartition

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