{
  "id": 115186,
  "title": "Rendering of bounding boxes for LEFT and RIGHT LIDAR seems to be incorrect",
  "url": "/competitions/3d-object-detection-for-autonomous-vehicles/discussion/115186",
  "author_name": "AshutoshNirala",
  "post_date": "2019-10-31T22:25:16.305000",
  "votes": 0,
  "comment_count": 0,
  "views": 0,
  "content": "<p>@maggiemd   When I try to render lidar data using:\n<code>lyftdata.render_sample_data( tokenID)</code>\nand my tokenID belongs to LIDAR_FRONT_LEFT or LIDAR_FRONT_RIGHT, it doesn't render the bounding boxes correctly. They seemed to be flipped around y = x axis.</p>\n\n<ul>\n<li>Is my observation correct? Is this a known issue.</li>\n<li>If so, it seems to be an issue with how lidar data has been stored for left and right lidars.\nBounding boxes for LIDAR_TOP are being rendered correctly though.</li>\n</ul>",
  "messages": [
    {
      "id": 662713,
      "postDate": "2019-10-31T22:25:16.307Z",
      "content": "<p>@maggiemd   When I try to render lidar data using:\n<code>lyftdata.render_sample_data( tokenID)</code>\nand my tokenID belongs to LIDAR_FRONT_LEFT or LIDAR_FRONT_RIGHT, it doesn't render the bounding boxes correctly. They seemed to be flipped around y = x axis.</p>\n\n<ul>\n<li>Is my observation correct? Is this a known issue.</li>\n<li>If so, it seems to be an issue with how lidar data has been stored for left and right lidars.\nBounding boxes for LIDAR_TOP are being rendered correctly though.</li>\n</ul>",
      "rawMarkdown": "@maggiemd   When I try to render lidar data using:\n`lyftdata.render_sample_data( tokenID)`\nand my tokenID belongs to LIDAR_FRONT_LEFT or LIDAR_FRONT_RIGHT, it doesn't render the bounding boxes correctly. They seemed to be flipped around y = x axis.\n\n- Is my observation correct? Is this a known issue.\n- If so, it seems to be an issue with how lidar data has been stored for left and right lidars.\n Bounding boxes for LIDAR_TOP are being rendered correctly though."
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "662713": "@maggiemd   When I try to render lidar data using:\n`lyftdata.render_sample_data( tokenID)`\nand my tokenID belongs to LIDAR_FRONT_LEFT or LIDAR_FRONT_RIGHT, it doesn't render the bounding boxes correctly. They seemed to be flipped around y = x axis.\n\n- Is my observation correct? Is this a known issue.\n- If so, it seems to be an issue with how lidar data has been stored for left and right lidars.\n Bounding boxes for LIDAR_TOP are being rendered correctly though."
  }
}