{
  "id": 583413,
  "title": "🎬 Rendered Herios Data (+Acceleration)",
  "url": "/competitions/cmi-detect-behavior-with-sensor-data/discussion/583413",
  "author_name": "Bilzard",
  "post_date": "2025-06-06T16:33:48.724000",
  "votes": 20,
  "comment_count": 0,
  "views": 0,
  "content": "<p>I shared a sample of a rendered motion movie dataset.</p>\n<ul>\n<li><strong>Notebook</strong>: <a href=\"https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed\" target=\"_blank\">https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed</a></li>\n<li><strong>Dataset</strong>: <a href=\"https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data\" target=\"_blank\">https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data</a></li>\n</ul>\n<p>The visualization code is based on the original by Florian Rupprecht (@nx10).<br>\nThe original implementation seemed to have a bug in how it loads quaternions, so I fixed it through trial and error.<br>\nThere might still be some issues — please let me know if you find any.</p>\n<p>Happy Kaggling!</p>\n<p><strong>Changes</strong></p>\n<ul>\n<li>Fix quaternion loading bug (wrong scalar-first vs scalar-last order)</li>\n<li>Add world-coordinate acceleration with gravity removed</li>\n<li>add filtering by the subjects' handedness</li>\n</ul>\n<p><strong>Sample</strong></p>\n<p>The acceleration vector in world coordinate is shown in the <strong>red</strong> arrow.<br>\nThe linear acceleration vector (i.e. acceleration vector subtracted by gravitational acceleration) is shown in the <strong>green</strong> arrow.<br>\nScales are adjusted to fit in the motion frame.</p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F4910466%2F2cf780de2dfdaacdeae484f4ff6b416b%2FScreenshot%202025-06-07%20at%201.25.23.png?generation=1749227570994255&amp;alt=media\" alt=\"\"></p>\n<ul>\n<li>Related topic: <a href=\"https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558\" target=\"_blank\">https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558</a></li>\n</ul>",
  "messages": [
    {
      "id": 3218737,
      "postDate": "2025-06-06T16:33:48.723Z",
      "content": "<p>I shared a sample of a rendered motion movie dataset.</p>\n<ul>\n<li><strong>Notebook</strong>: <a href=\"https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed\" target=\"_blank\">https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed</a></li>\n<li><strong>Dataset</strong>: <a href=\"https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data\" target=\"_blank\">https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data</a></li>\n</ul>\n<p>The visualization code is based on the original by Florian Rupprecht (@nx10).<br>\nThe original implementation seemed to have a bug in how it loads quaternions, so I fixed it through trial and error.<br>\nThere might still be some issues — please let me know if you find any.</p>\n<p>Happy Kaggling!</p>\n<p><strong>Changes</strong></p>\n<ul>\n<li>Fix quaternion loading bug (wrong scalar-first vs scalar-last order)</li>\n<li>Add world-coordinate acceleration with gravity removed</li>\n<li>add filtering by the subjects' handedness</li>\n</ul>\n<p><strong>Sample</strong></p>\n<p>The acceleration vector in world coordinate is shown in the <strong>red</strong> arrow.<br>\nThe linear acceleration vector (i.e. acceleration vector subtracted by gravitational acceleration) is shown in the <strong>green</strong> arrow.<br>\nScales are adjusted to fit in the motion frame.</p>\n<p><img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F4910466%2F2cf780de2dfdaacdeae484f4ff6b416b%2FScreenshot%202025-06-07%20at%201.25.23.png?generation=1749227570994255&amp;alt=media\" alt=\"\"></p>\n<ul>\n<li>Related topic: <a href=\"https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558\" target=\"_blank\">https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558</a></li>\n</ul>",
      "rawMarkdown": "I shared a sample of a rendered motion movie dataset.\n\n* **Notebook**: [https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed](https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed)\n* **Dataset**: [https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data](https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data)\n\nThe visualization code is based on the original by Florian Rupprecht (@nx10).\nThe original implementation seemed to have a bug in how it loads quaternions, so I fixed it through trial and error.\nThere might still be some issues — please let me know if you find any.\n\nHappy Kaggling!\n\n**Changes**\n\n* Fix quaternion loading bug (wrong scalar-first vs scalar-last order)\n* Add world-coordinate acceleration with gravity removed\n* add filtering by the subjects' handedness\n\n**Sample**\n\nThe acceleration vector in world coordinate is shown in the **red** arrow.\nThe linear acceleration vector (i.e. acceleration vector subtracted by gravitational acceleration) is shown in the **green** arrow.\nScales are adjusted to fit in the motion frame.\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F4910466%2F2cf780de2dfdaacdeae484f4ff6b416b%2FScreenshot%202025-06-07%20at%201.25.23.png?generation=1749227570994255&alt=media)\n\n- Related topic: [https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558](https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558)",
      "votes": 20
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "3218737": "I shared a sample of a rendered motion movie dataset.\n\n* **Notebook**: [https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed](https://www.kaggle.com/code/tatamikenn/cmi-render-herios-data-bug-fixed)\n* **Dataset**: [https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data](https://www.kaggle.com/datasets/tatamikenn/cmi-rendered-herios-data/data)\n\nThe visualization code is based on the original by Florian Rupprecht (@nx10).\nThe original implementation seemed to have a bug in how it loads quaternions, so I fixed it through trial and error.\nThere might still be some issues — please let me know if you find any.\n\nHappy Kaggling!\n\n**Changes**\n\n* Fix quaternion loading bug (wrong scalar-first vs scalar-last order)\n* Add world-coordinate acceleration with gravity removed\n* add filtering by the subjects' handedness\n\n**Sample**\n\nThe acceleration vector in world coordinate is shown in the **red** arrow.\nThe linear acceleration vector (i.e. acceleration vector subtracted by gravitational acceleration) is shown in the **green** arrow.\nScales are adjusted to fit in the motion frame.\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F4910466%2F2cf780de2dfdaacdeae484f4ff6b416b%2FScreenshot%202025-06-07%20at%201.25.23.png?generation=1749227570994255&alt=media)\n\n- Related topic: [https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558](https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/discussion/583118#3218558)"
  }
}