tommypraxis/egocentric-samples

Praxis · Egocentric evaluation samples

Real-world hand, object and tool interaction across six camera views. Explore task recordings with MCAP sensor data, MP4 previews, camera intrinsics and extrinsics, and linked metadata.

Contact Tommy · tommy@praxisrobotics.io for evaluation access and tailored data requirements.

At a glance

Included in this release	Coverage
Samples	735
Mapped activity duration	24.16 hours
Camera views	6 per sample
Primary activity categories	26
Environment categories	15
Country folder labels	Argentina, Colombia, India, Panama, Peru, US
Delivery	MCAP · MP4 previews · JSON metadata · camera calibration

Duration is the union of mapped activity intervals within each source recording, counted once across camera views and excluding decoder preroll.

Country labels come from the source folders and are not independently verified capture locations. Media are hosted in this private Hugging Face repository; authorized recipients can download them directly.

Start here

Start with eight featured examples

1. Browse the episodes catalog by activity, environment, country or descriptive title. Each row provides a sample ID, duration and paths to its preview, MCAP and calibration.
2. Follow QUICKSTART.md to retrieve selected sample bundles.
3. Read DATA_FORMAT.md for timestamps, sensor integration and camera calibration.

Evaluation guide · Lab brief · Quality validation · Access and usage

Task coverage

Primary activity	Samples
Animal care	8
Assembly	14
Cleaning	76
Construction	84
Cooking	28
Cutting	37
Disassembly	2
Equipment operation	139
Folding	1
Food preparation	67
Gardening	27
Inspection	24
Labeling	1
Maintenance repair	31
Material transport	34
Measuring	5
Other	9
Packing	40
Painting	50
Scanning	6
Serving	2
Sewing	2
Sorting	12
Unknown	1
Unpacking	5
Washing	30

Controlled categories support filtering; descriptive titles and captions capture the specific task, tools and materials. Secondary activities provide additional search context.

Files and identifiers

Path	Contents
catalog/browse.jsonl	Episode-oriented browsing index
data/metadata.jsonl	Authoritative sample metadata and preview-to-MCAP mappings
catalog/samples.csv	Spreadsheet-friendly catalog
catalog/recordings.jsonl	Parent recording metadata and provenance
catalog/episodes.jsonl	Task excerpt intervals and decoder context
media/previews/	MP4 previews
media/recordings/, media/episodes/	MCAP sensor recordings
calibration/	Original intrinsics, extrinsics and schema evidence
taxonomy/	Activity and environment category definitions
examples/	Sample retrieval and inspection tools

Stable identifiers connect sample metadata, media and calibration. Pin a repository revision for reproducible evaluation. MCAP supplies the sensor payloads; MP4 previews support browsing. Apply calibration to the corresponding individual camera images.

Environment and country breakdown

Environment	Samples
Commercial Kitchen	143
Construction Site	153
Factory	37
Farm	106
Hospitality Venue	39
Laboratory	6
Mine	9
Office	7
Other	9
Outdoor Grounds	26
Residential	116
Retail	3
Unknown	1
Warehouse	56
Workshop	24

Country folder label	Samples
Argentina	53
Colombia	11
India	311
Panama	10
Peru	85
Us	265

Machine-readable counts are in catalog/breakdown.json. Counts describe the included samples; duration uses the union of activity intervals per source recording.

Selection, processing and limitations

Included samples have recorded sampled visual review, complete technical decoding checks, verified preview-to-source timing, and linked original calibration for all six cameras. Episodes include activity chapters and naturally short sequences; they do not promise complete task cycles. MCAP excerpts preserve retained encoded payloads and timestamps and may include decoder preroll. Some samples link to initialization-cleaned full recordings; use each row's recording_file and source_time_map.

Review is sampled, not exhaustive frame-by-frame inspection. Clip-level labels are not dense action annotations. No measured synchronization or calibration accuracy is claimed. Original calibration values are supplied, but parameter order, transform direction, units and axes that cannot be established remain explicitly unknown. MP4 previews are silent; MCAP may contain audio. Brief occlusions, motion blur and transitions can remain; consult per-sample quality notes.

See QUALITY_AND_LIMITATIONS.md and DATA_FORMAT.md. No media license is assigned; access alone grants no training or redistribution rights. Contact Tommy at tommy@praxisrobotics.io to arrange private evaluation access and usage terms.