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@@ -134,29 +134,12 @@ slightly below VITRA-1M's published index (52,718 and 67,053) because round 2 ma
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  sentences `unusable` and we deleted those episodes: **12** from `ssv2`, **2** from `egoexo4d`.
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- ### A note on viewpoint
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- For each domain we reconstructed the camera centre from the per-frame extrinsics and measured
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- how far it travels within a source video, rather than trusting the labels:
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-
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- | | camera displacement within a video (median / max, m) |
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- |---|---|
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- | EPIC-KITCHENS-100 | 0.275 / 1.559 |
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- | OakInk2 | 0.081 / 0.271 |
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- | ARCTIC | 0.044 / 0.212 |
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- | H2O | 0.022 / 0.149 |
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- | TACO | 0.017 / 0.041 |
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- | GigaHands | **0.000000 / 0.000000** — static rig |
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-
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- Those five are head- or chest-mounted. **GigaHands is not**: it is the BRICS studio ring, a fixed
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- third-person camera array, and its reconstructed camera centre is bit-for-bit `0.000000` m on
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- every episode. Its hand poses and instructions are fine — only the viewpoint differs — so it is
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- kept here and labelled rather than dropped.
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-
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- **DexYCB was removed from this collection on 2026-08-30.** It is 8 fixed RealSense cameras around
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- a table; its own `camera.role` field reads `allocentric` on all 15,878 episodes and the camera
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- displacement is exactly zero. Unlike OakInk2, which ships an egocentric view alongside three
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- allocentric ones, DexYCB has no head-mounted camera at all, so there was nothing to filter down to.
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  ### Not published yet
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  sentences `unusable` and we deleted those episodes: **12** from `ssv2`, **2** from `egoexo4d`.
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+ ### DexYCB was removed
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+ **DexYCB was removed from this collection on 2026-08-30.** It is captured by 8 fixed RealSense
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+ cameras around a table; its own `camera.role` field reads `allocentric` on all 15,878 episodes.
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+ Unlike OakInk2, which ships an egocentric view alongside three allocentric ones, DexYCB has no
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+ head-mounted camera at all, so there was nothing to filter down to.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ### Not published yet
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