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| description: Explore detailed documentation of various SAM and SAM 2 modules such as MaskDownSampler, CXBlock, and more, available in Ultralytics' repository. |
| keywords: Ultralytics, SAM encoder, SAM 2 encoder, DropPath, MaskDownSampler, CXBlock, Fuser, TwoWayTransformer, TwoWayAttentionBlock, RoPEAttention, MultiScaleAttention, MultiScaleBlock. PositionEmbeddingSine, do_pool |
| --- |
| |
| # Reference for `ultralytics/models/sam/modules/blocks.py` |
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| !!! Note |
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| This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/modules/blocks.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/sam/modules/blocks.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/sam/modules/blocks.py) 🛠️. Thank you 🙏! |
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| <br> |
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| ## ::: ultralytics.models.sam.modules.blocks.DropPath |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.MaskDownSampler |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.CXBlock |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.Fuser |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.SAM2TwoWayAttentionBlock |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.SAM2TwoWayTransformer |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.RoPEAttention |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.MultiScaleAttention |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.MultiScaleBlock |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.PositionEmbeddingSine |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.PositionEmbeddingRandom |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.Block |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.REAttention |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.PatchEmbed |
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| <br><br><hr><br> |
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| ## ::: ultralytics.models.sam.modules.blocks.do_pool |
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| <br><br> |
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