{
  "id": 195094,
  "title": "Where is the traffic_light_faces data in the data loader?",
  "url": "/competitions/lyft-motion-prediction-autonomous-vehicles/discussion/195094",
  "author_name": "",
  "post_date": "2020-11-03T14:13:51.277002800Z",
  "votes": 1,
  "comment_count": 2,
  "views": 0,
  "content": "<p>Hi, I am slightly confused about where the traffic light data is in the data loader.  The data has several keys but I don't see the traffic light data in it.  Here are the keys for the data:</p>\n<pre><code>dict_keys(['image', 'target_positions', 'target_yaws', 'target_availabilities', 'history_positions', 'history_yaws', 'history_availabilities', 'world_to_image', 'raster_from_world', 'raster_from_agent', 'agent_from_world', 'world_from_agent', 'track_id', 'timestamp', 'centroid', 'yaw', 'extent'])\n</code></pre>\n<p>Where is the traffic light data located?</p>",
  "messages": [
    {
      "id": "1068560",
      "postDate": "11/03/2020 14:13:51",
      "content": "<p>Hi, I am slightly confused about where the traffic light data is in the data loader.  The data has several keys but I don't see the traffic light data in it.  Here are the keys for the data:</p>\n<pre><code>dict_keys(['image', 'target_positions', 'target_yaws', 'target_availabilities', 'history_positions', 'history_yaws', 'history_availabilities', 'world_to_image', 'raster_from_world', 'raster_from_agent', 'agent_from_world', 'world_from_agent', 'track_id', 'timestamp', 'centroid', 'yaw', 'extent'])\n</code></pre>\n<p>Where is the traffic light data located?</p>",
      "rawMarkdown": "Hi, I am slightly confused about where the traffic light data is in the data loader.  The data has several keys but I don't see the traffic light data in it.  Here are the keys for the data:\n```\ndict_keys(['image', 'target_positions', 'target_yaws', 'target_availabilities', 'history_positions', 'history_yaws', 'history_availabilities', 'world_to_image', 'raster_from_world', 'raster_from_agent', 'agent_from_world', 'world_from_agent', 'track_id', 'timestamp', 'centroid', 'yaw', 'extent'])\n```\nWhere is the traffic light data located?",
      "votes": null
    },
    {
      "id": "1068608",
      "postDate": "11/03/2020 15:15:16",
      "content": "<p>It's encoded by lanes' colors in the rasterized image</p>",
      "rawMarkdown": "It's encoded by lanes' colors in the rasterized image",
      "votes": null
    },
    {
      "id": "1069295",
      "postDate": "11/04/2020 09:43:33",
      "content": "<p>That's correct. The main reason we have it encoded in the map only and not also as raw data in the dict is that it's a variable length information (not really torch friendly)</p>",
      "rawMarkdown": "That's correct. The main reason we have it encoded in the map only and not also as raw data in the dict is that it's a variable length information (not really torch friendly)",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1068608,
      "author_name": "szacho",
      "author_url": "",
      "post_date": "11/03/2020 15:15:16",
      "content": "<p>It's encoded by lanes' colors in the rasterized image</p>",
      "votes": null,
      "replies": [
        {
          "id": 1069295,
          "author_name": "lucabergamini",
          "author_url": "",
          "post_date": "11/04/2020 09:43:33",
          "content": "<p>That's correct. The main reason we have it encoded in the map only and not also as raw data in the dict is that it's a variable length information (not really torch friendly)</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1068560": "Hi, I am slightly confused about where the traffic light data is in the data loader.  The data has several keys but I don't see the traffic light data in it.  Here are the keys for the data:\n```\ndict_keys(['image', 'target_positions', 'target_yaws', 'target_availabilities', 'history_positions', 'history_yaws', 'history_availabilities', 'world_to_image', 'raster_from_world', 'raster_from_agent', 'agent_from_world', 'world_from_agent', 'track_id', 'timestamp', 'centroid', 'yaw', 'extent'])\n```\nWhere is the traffic light data located?",
    "1068608": "It's encoded by lanes' colors in the rasterized image",
    "1069295": "That's correct. The main reason we have it encoded in the map only and not also as raw data in the dict is that it's a variable length information (not really torch friendly)"
  },
  "source": "meta"
}