{
  "id": 672974,
  "title": "Voxel spacing (µm/voxel) for Kaggle Surface Detection dataset?",
  "url": "/competitions/vesuvius-challenge-surface-detection/discussion/672974",
  "author_name": "",
  "post_date": "2026-02-11T16:29:55.469842200Z",
  "votes": 3,
  "comment_count": 1,
  "views": 0,
  "content": "<p>For the <strong>Kaggle Vesuvius Challenge – Surface Detection</strong> dataset, what is the <strong>voxel spacing (µm/voxel)</strong> of the provided 3D volumes?</p>\n<ul>\n<li>Please confirm <strong>X/Y/Z spacing</strong> (is it isotropic?).</li>\n<li>Is spacing <strong>fixed for the whole dataset</strong>, or does it <strong>vary by scroll/segment</strong>? If it varies, where can I find the per-volume value (e.g., TIFF metadata / OME-Zarr <code>.zattrs</code> / filename convention)?</li>\n</ul>\n<p>Thanks!</p>",
  "messages": [
    {
      "id": "3404950",
      "postDate": "02/11/2026 16:29:55",
      "content": "<p>For the <strong>Kaggle Vesuvius Challenge – Surface Detection</strong> dataset, what is the <strong>voxel spacing (µm/voxel)</strong> of the provided 3D volumes?</p>\n<ul>\n<li>Please confirm <strong>X/Y/Z spacing</strong> (is it isotropic?).</li>\n<li>Is spacing <strong>fixed for the whole dataset</strong>, or does it <strong>vary by scroll/segment</strong>? If it varies, where can I find the per-volume value (e.g., TIFF metadata / OME-Zarr <code>.zattrs</code> / filename convention)?</li>\n</ul>\n<p>Thanks!</p>",
      "rawMarkdown": "For the **Kaggle Vesuvius Challenge – Surface Detection** dataset, what is the **voxel spacing (µm/voxel)** of the provided 3D volumes?\n\n* Please confirm **X/Y/Z spacing** (is it isotropic?).\n* Is spacing **fixed for the whole dataset**, or does it **vary by scroll/segment**? If it varies, where can I find the per-volume value (e.g., TIFF metadata / OME-Zarr `.zattrs` / filename convention)?\n\nThanks!",
      "votes": null
    },
    {
      "id": "3404997",
      "postDate": "02/11/2026 19:22:05",
      "content": "<p>It's isotropic as far as I know</p>",
      "rawMarkdown": "It's isotropic as far as I know",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 3404997,
      "author_name": "mariusheuser",
      "author_url": "",
      "post_date": "02/11/2026 19:22:05",
      "content": "<p>It's isotropic as far as I know</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "3404950": "For the **Kaggle Vesuvius Challenge – Surface Detection** dataset, what is the **voxel spacing (µm/voxel)** of the provided 3D volumes?\n\n* Please confirm **X/Y/Z spacing** (is it isotropic?).\n* Is spacing **fixed for the whole dataset**, or does it **vary by scroll/segment**? If it varies, where can I find the per-volume value (e.g., TIFF metadata / OME-Zarr `.zattrs` / filename convention)?\n\nThanks!",
    "3404997": "It's isotropic as far as I know"
  },
  "source": "meta"
}