Glossary
What Is HD-EPIC?
Last reviewed: October 2026
Short answer
HD-EPIC is a published dataset of newly collected, unscripted kitchen egocentric video from a CVPR 2025 paper (arXiv 2502.04144). It is described as 41 hours of video in 9 kitchens, with interconnected labels for recipes, actions, ingredients, moving objects and audio, all grounded in 3D. Firsthand is not part of it.
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What is HD-EPIC?
HD-EPIC is introduced in HD-EPIC: A Highly-Detailed Egocentric Video Dataset (arXiv 2502.04144), with an official project page and an official GitHub annotations repository. The abstract calls it a validation dataset. Read: the abstract, the project page and the repository README only.
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Where does Firsthand fit next to HD-EPIC?
HD-EPIC is third-party research. Firsthand is not affiliated with its authors and claims no use, training or compatibility with it or any named model. Firsthand captures first-person human video, fast, on demand and to a written spec: 21 keypoints per hand with a visibility flag, wrist trajectories and action segments, plus one task instruction per episode.
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How was HD-EPIC recorded?
The abstract describes newly collected kitchen egocentric video from unscripted recordings in diverse home environments, and the project page calls them unscripted multi-day recordings. It states 41 hours in 9 kitchens, with annotations grounded in 3D through digital twins of the scene. The README’s intermediate-data section refers to per-video Aria glasses device calibration, per-frame camera pose and gaze. Camera specs, resolution, participant count and consent process are Not stated in the sources read.
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What annotations and benchmark does HD-EPIC include?
The abstract lists recipe steps, fine-grained actions, ingredients with nutritional values, moving objects and audio, primed with gaze. The abstract counts 59K fine-grained actions, 51K audio events and 263 annotations per minute. The repository releases narrations as a pickle, audio as CSV and the rest as JSON.
The benchmark is visual question answering: 26K questions in the abstract, 26.6K on the project page, across seven categories from recipes to gaze. The abstract reports Gemini Pro at 38.5% and calls the benchmark difficult. Firsthand draws no comparison from that score. Scores for the action, sound and segmentation assessments are Not stated in the sources read.
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How does HD-EPIC compare with EPIC-KITCHENS and Ego4D?
HD-EPIC is a separate dataset from EPIC-KITCHENS, and the table keeps each source’s facts apart. The sizes differ: 41 hours here, 100 hours in EPIC-KITCHENS-100 and 3,670 hours in Ego4D, per their entries. This page ranks none of them. HD-EPIC licence terms are Not stated in the sources read.
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What does a kitchen video benchmark not cover for robot manipulation?
The sources read describe HD-EPIC as a validation dataset and a question-answering benchmark, alongside recognition and segmentation. They do not describe robot actions or 3D hand pose keypoints; hand masks are pixel regions, not keypoints. Suitability for training a manipulation policy is Not stated in the sources read, and this page draws no conclusion. The scope is kitchens only.
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How do you get custom egocentric data for your own tasks?
Write tasks, environments and signals into a spec and confirm them on a Spec Pilot. Median time to first validated batch: 48 hours where coverage is deep, three to four weeks where thin. Recipe, nutrition, audio-event and gaze labels like HD-EPIC’s are not fields this page states for Firsthand capture, so plan them separately.
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HD-EPIC at a glance, as stated in the official sources
| Item | What the official sources state |
|---|---|
| Paper | HD-EPIC: A Highly-Detailed Egocentric Video Dataset (arXiv 2502.04144), CVPR 2025 |
| Size | 41 hours of video in 9 kitchens; 4.4M frames and 69 recipes (project page) |
| Recording | Unscripted multi-day recordings in diverse home environments |
| 3D grounding | Digital twins of the scene; 413 kitchen fixtures (paper) |
| Benchmark | Question answering, 26K questions (26.6K on the project page), seven categories |
| Camera specs, participants, licence | Not stated in the sources read |
| Firsthand relationship | None |
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HD-EPIC, EPIC-KITCHENS-100 and Ego4D, as each source or site entry states
| Item | HD-EPIC (sources read) | EPIC-KITCHENS-100 (site entry) | Ego4D (site entry) |
|---|---|---|---|
| Size | 41 hours, 9 kitchens | 100 hours, 700 videos, 45 environments | 3,670 hours, 74 locations, 9 countries |
| Labels | Recipes, actions, ingredients, moving objects, audio, gaze, 3D | 97 verb and 300 noun classes with times | Narrations; optional audio, gaze, stereo |
| Benchmark | Question answering plus recognition and segmentation | Six challenges | Five benchmarks |
| Licence | Not stated in the sources read | Non-commercial, per the entry | Commercial terms Not stated in the sources read |
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What HD-EPIC provides beside what the Firsthand site states
| Aspect | HD-EPIC (sources read) | What the Firsthand site states |
|---|---|---|
| Viewpoint | Egocentric kitchen video; Aria glasses calibration in released data | Head-mounted egocentric video plus two wrist cameras |
| Hands | 7.7M hand masks | 21 keypoints per hand, visibility flag, wrist trajectories |
| Actions | 59K fine-grained actions with start and end times | Action segments |
| Language | Narrations, “how” and “why” descriptions | One task instruction per episode |
| File layout | MP4 video with pickle, CSV and JSON annotations | RLDS, LeRobot v2.1, WebDataset, HDF5 |
| Compatibility | Not claimed | Not claimed |
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Frequently asked questions
- What is HD-EPIC?
- A published dataset of unscripted kitchen egocentric video with interconnected labels grounded in 3D, from a CVPR 2025 paper.
- How large is HD-EPIC?
- The abstract states 41 hours of video in 9 kitchens, with 69 recipes and 59K fine-grained actions. The project page adds 4.4M frames.
- What is the HD-EPIC benchmark?
- A question-answering benchmark of 26K questions across seven categories. The abstract reports Gemini Pro at 38.5%.
- Is HD-EPIC the same as EPIC-KITCHENS?
- No. It is a separate dataset, and its project page lists EPIC-KITCHENS-100 among connected datasets.
- Can HD-EPIC be used commercially?
- Licence terms are Not stated in the sources read. Check the download terms on the project page first.
- Does Firsthand use HD-EPIC, and can I request a custom dataset?
- Firsthand is not affiliated with the HD-EPIC authors and claims no use, training or compatibility. You can request a custom dataset, confirmed first on a Spec Pilot.
Sources
- HD-EPIC: A Highly-Detailed Egocentric Video Dataset (arXiv 2502.04144)
- HD-EPIC project page (official)
- hd-epic/hd-epic-annotations (official GitHub)
- Rescaling Egocentric Vision: Collection Pipeline and Challenges for EPIC-KITCHENS-100 (arXiv 2006.13256)
- Ego4D: Around the World in 3,000 Hours of Egocentric Video (arXiv 2110.07058)