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

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

!!! success "Improvements"

    This page is sourced from [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/modules/utils.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/modules/utils.py). Have an improvement or example to add? Open a [Pull Request](https://docs.ultralytics.com/help/contributing/) — thank you! 🙏

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

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

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

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

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

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

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

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

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## ::: ultralytics.models.sam.modules.utils.get_rel_pos

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## ::: ultralytics.models.sam.modules.utils.add_decomposed_rel_pos

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## ::: ultralytics.models.sam.modules.utils.get_abs_pos

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## ::: ultralytics.models.sam.modules.utils.concat_rel_pos

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