{"dataset":{"id":"61276","dataset_id":"nm000281","name":"emg2pose: Surface EMG and Hand Pose","description":"This dataset is a NEMAR re-host and BIDS conversion of the emg2pose benchmark, comprising surface electromyography (EMG) recordings paired with hand pose labels for wrist-worn sEMG-based hand pose estimation. It includes 16-channel, 2 kHz sEMG recordings synchronized with joint-angle labels derived from a 26-camera motion-capture rig, spanning 193 users, 370 hours, and approximately 80 million labeled frames across 29 behavioral stages.","owner_user_id":19,"status":"active","github_repo":"nemarDatasets/nm000281","concept_doi":"10.82901/nemar.nm000281","latest_version_doi":"10.82901/nemar.nm000281.v1.0.4","created_at":"2026-08-24 20:54:53","updated_at":"2026-08-31 11:09:05","zenodo_concept_id":null,"is_sandbox":0,"visibility":"public","ezid_status":"public","enrichment_json":"{\n  \"version\": \"2.0\",\n  \"pipeline_stage\": \"enriched\",\n  \"title\": \"emg2pose: Surface EMG and Hand Pose\",\n  \"description\": \"This dataset is a NEMAR re-host and BIDS conversion of the emg2pose benchmark, comprising surface electromyography (EMG) recordings paired with hand pose labels for wrist-worn sEMG-based hand pose estimation. It includes 16-channel, 2 kHz sEMG recordings synchronized with joint-angle labels derived from a 26-camera motion-capture rig, spanning 193 users, 370 hours, and approximately 80 million labeled frames across 29 behavioral stages.\",\n  \"methods_description\": \"Surface EMG was recorded at 2 kHz across 16 channels from the wrist, paired with hand pose labels derived from a 26-camera motion-capture rig using inverse kinematics to produce 20 joint-angle channels. The data were converted from the original HDF5 format to EMG-BIDS BDF files, with joint angles stored as radian-valued MISC channels and BAD_IK annotations marking invalid inverse-kinematics samples.\",\n  \"license\": \"CC-BY-NC-SA-4.0\",\n  \"dataset_type\": \"raw\",\n  \"authors\": {\n    \"Sasha Salter\": {},\n    \"Richard Warren\": {},\n    \"Collin Schlager\": {},\n    \"Adrian Spurr\": {},\n    \"Shangchen Han\": {},\n    \"Rohin Bhasin\": {},\n    \"Yujun Cai\": {},\n    \"Peter Walkington\": {},\n    \"Anuoluwapo Bolarinwa\": {},\n    \"Robert Wang\": {},\n    \"Nathan Danielson\": {},\n    \"Josh Merel\": {},\n    \"Eftychios Pnevmatikakis\": {},\n    \"Jesse Marshall\": {},\n    \"Alexandre Gramfort\": {}\n  },\n  \"keywords\": [\n    {\n      \"term\": \"Electromyography\",\n      \"subject_scheme\": \"MeSH\",\n      \"value_uri\": \"http://id.nlm.nih.gov/mesh/D004576\"\n    },\n    {\n      \"term\": \"hand pose estimation\"\n    },\n    {\n      \"term\": \"surface EMG\"\n    },\n    {\n      \"term\": \"motion capture\"\n    },\n    {\n      \"term\": \"benchmark dataset\"\n    },\n    {\n      \"term\": \"BIDS\"\n    }\n  ],\n  \"related_identifiers\": [\n    {\n      \"identifier\": \"10.48550/arXiv.2412.02725\",\n      \"identifier_type\": \"DOI\",\n      \"relation_type\": \"IsDerivedFrom\"\n    },\n    {\n      \"identifier\": \"https://github.com/nemarDatasets/nm000281\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    },\n    {\n      \"identifier\": \"https://nemar.org/dataset/nm000281\",\n      \"identifier_type\": \"URL\",\n      \"relation_type\": \"IsDescribedBy\"\n    }\n  ],\n  \"funding_references\": [\n    {\n      \"funder_name\": \"Reality Labs, Meta\"\n    }\n  ],\n  \"resource_type_general\": \"Dataset\",\n  \"resource_type_specific\": \"EMG Dataset\",\n  \"modalities\": [\n    \"emg\"\n  ],\n  \"sizes\": [\n    \"1.1 TB (50020 files)\"\n  ],\n  \"formats\": [\n    \".bdf\",\n    \".csv\",\n    \".gz\",\n    \".json\",\n    \".md\",\n    \".pdf\",\n    \".py\",\n    \".sbatch\",\n    \".tar\",\n    \".tsv\",\n    \".yml\"\n  ],\n  \"source_hash\": \"278a24ac9cc6eb092630d1e0f27c66700e191bd51879b7867aff2104b6c2dbd2\"\n}","last_activity_at":"2026-08-30 22:31:09","source":null,"source_id":null,"subject_count":97,"modalities":"emg","age_min":null,"age_max":null,"file_size":794732424316,"total_files":102532,"tasks":"emg2pose","metadata_columns_error":null,"staleness_warn_stage":null,"staleness_admin_notified_at":null,"authors":"Sasha Salter, Richard Warren, Collin Schlager, Adrian Spurr, Shangchen Han, Rohin Bhasin, Yujun Cai, Peter Walkington, Anuoluwapo Bolarinwa, Robert Wang, Nathan Danielson, Josh Merel, Eftychios Pnevmatikakis, Jesse Marshall, Alexandre Gramfort","license":"CC-BY-NC-SA-4.0","readme":"[![DOI](https://img.shields.io/badge/DOI-10.82901%2Fnemar.nm000281-blue)](https://doi.org/10.82901/nemar.nm000281)\n\nemg2pose: Surface EMG and Hand Pose\n\nThis dataset is a NEMAR re-host and EMG-BIDS conversion of the public Meta\nemg2pose release. The original benchmark is described in:\n\nSalter, Warren, Schlager et al. \"emg2pose: A Large and Diverse Benchmark for\nSurface Electromyographic Hand Pose Estimation.\" NeurIPS 2024 Datasets and\nBenchmarks Track. arXiv:2412.02725. DOI: 10.48550/arXiv.2412.02725.\n\nThe source paper describes emg2pose as a wrist surface electromyography\nbenchmark for hand pose estimation. It contains 2 kHz, 16-channel sEMG\nrecordings paired with hand pose labels captured by a 26-camera motion-capture\nrig. The public release spans 193 users, 370 hours, 29 behavioral stages, and\napproximately 80 million labeled frames.\n\nConversion notes\n----------------\n\nThe upstream HDF5 recordings were converted using a fast parallel adaptation of\nfacebookresearch/emg2pose PR #6, contributed by Alexandre Gramfort\n(@agramfort). Each recording is stored as an EMG-BIDS BDF file under\nsub-*/ses-*/emg. Each BDF contains:\n\n- 16 EMG channels named emg0 through emg15.\n- 20 joint-angle channels named joint0 through joint19.\n- Joint-angle channels are represented as radian-valued MISC channels.\n- BAD_IK annotations mark samples where inverse-kinematics labels are all zero.\n- The BIDS recording entity stores the source hand side, left or right.\n\nThe original upstream tarball is preserved in sourcedata as\nsourcedata/emg2pose_dataset.tar. The arXiv PDF and source bundle for the paper\nare preserved under sourcedata/paper for provenance.\n\nKnown limitations\n-----------------\n\nExact anatomical electrode coordinates are not provided by the public release,\nso EMGPlacementScheme is recorded as Other. The BDF writer pads the final data\nrecord with edge values when a recording length is not an exact multiple of the\nBDF data-record duration; this is a format-level requirement and does not alter\nthe original samples before the final padded block.\n","bids_version":"1.11.1","sessions_count":9,"publish_date":null,"embedding_dirty":0,"license_tier":"noncommercial","zarr_status":"ready","zarr_converted_at":"2026-08-31 03:48:06","zarr_store_count":25253,"zarr_index_etag":"fe8b5018738b11ebe8c788aa02ea667f-2","zarr_source_commit":"b659d6f6c4724e01547216b972cae25f66bb6ad4","archive_status":null,"archive_size":null,"archive_retry_count":0,"records_status":null,"archive_skip_reason":null,"zarr_errors":0,"zarr_failure_count":0,"zarr_deterministic":0,"zarr_failed_at":null,"num_dataset_citations":0,"num_datapaper_citations":0,"n_channels":null,"electrode_system":null,"has_hed":0,"hed_version":null,"is_exemplar":0,"bytes_present":1119907741477,"data_complete":1,"withdrawn_at":null,"withdrawn_reason":null,"archive_complete":null,"archive_absent_files":null,"archive_declared_files":null,"zarr_pool_breaks":0,"total_recording_duration":1534286,"recording_duration_min":1,"recording_duration_max":374,"recording_count":25253,"recordings_unavailable":0,"recordings_measured":25253,"channel_count_min":36,"channel_count_max":36,"sampling_frequency":null,"power_line_frequency":null,"eeg_reference":null,"placement_scheme":null,"sweep_stamps":"{\"enrichment_updated_at\":\"2026-08-31 11:09:04\",\"metadata_updated_at\":\"2026-08-31 11:09:04\",\"archive_checked_at\":null,\"zarr_checked_at\":null,\"records_checked_at\":null,\"citations_updated_at\":null,\"channel_montage_checked_at\":null,\"hed_checked_at\":null,\"data_checked_at\":null,\"availability_report_at\":\"2026-08-25 03:00:09\",\"recording_stats_at\":\"2026-09-02 11:32:10\",\"signal_defaults_at\":\"2026-09-02 11:51:43\"}","participants":97,"num_citations":0,"latest_version":"v1.0.3","zarr_verify_status":null,"zarr_verified_at":null,"owner_username":"bruaristimunha","owner_github":"bruAristimunha","file_size_formatted":"740 GB","zarr_data_failures":null,"zarr_index_url":"https://zarr.nemar.org/nm000281/zarr/index.json","attestation_deposit_type":null,"attestation_key_status":null,"attestation_deidentified":null,"attestation_no_duplicate":null,"attestation_upstream_source":null,"attestation_accepted_at":null}}