uniforce_loading_only_30f_rect_safe_500k_v2_gray_jpeg30k

This dataset contains simulated tactile image sequences generated with the loading_only sequence mode. It is a storage-optimized version of uniforce_loading_only_30f_rect_safe_500k_v2.

Images preserve the original 640 x 480 resolution and original .jpg filenames/relative paths, but are re-encoded as grayscale JPEG with adaptive quality so each image is at most 30 KiB.

The raw episode layout contains more than 500k image files, so the episode folders are stored as uncompressed tar shards for reliable upload/download on the Hugging Face Hub. The tar archives preserve the original episode_* directory structure.

Contents

• manifest.json: dataset-level metadata and generation settings.
• event_index.jsonl: full event index.
• event_index_train.jsonl: train split event index.
• event_index_val.jsonl: validation split event index, empty for this build.
• event_index_test.jsonl: test split event index, empty for this build.
• compression_summary.json: image compression summary.
• shards/*.tar: episode directory shards.

This upload includes episode_000000 through episode_000737. Local generation work directories such as _work*, _work_failed*, and _work_repair* are not included.

Extract

After downloading the dataset repository, restore the original episode folders with:

mkdir -p extracted
for shard in shards/*.tar; do
  tar -xf "$shard" -C extracted
done

The extracted directory will contain the original episode_* folders. The JSONL index files reference paths relative to the dataset root, so copy or keep the top-level event_index*.jsonl, manifest.json, and compression_summary.json next to the extracted episode_* folders.

Image Compression

• Resolution: 640 x 480.
• Format: grayscale JPEG.
• Target max size: 30 KiB per image.
• Quality selection: highest JPEG quality not exceeding 30 KiB.
• Number of JPG files: 503,316.
• Oversized JPG files: 0.

See compression_summary.json for details.