{
  "id": 619612,
  "title": "Vertical distance between leads at the output",
  "url": "/competitions/physionet-ecg-image-digitization/discussion/619612",
  "author_name": "",
  "post_date": "2025-11-14T17:16:11.949452900Z",
  "votes": null,
  "comment_count": 3,
  "views": 0,
  "content": "<p>Hello everyone, as I understand it, the vertical distance between the two leads resulting from the output signals of each model does not have a specific criterion and can vary!? Please comment.</p>",
  "messages": [
    {
      "id": "3324077",
      "postDate": "11/14/2025 17:16:11",
      "content": "<p>Hello everyone, as I understand it, the vertical distance between the two leads resulting from the output signals of each model does not have a specific criterion and can vary!? Please comment.</p>",
      "rawMarkdown": "Hello everyone, as I understand it, the vertical distance between the two leads resulting from the output signals of each model does not have a specific criterion and can vary!? Please comment.",
      "votes": null
    },
    {
      "id": "3326238",
      "postDate": "11/15/2025 09:21:14",
      "content": "<p>A calibration pulse of 1 mV amplitude and 0.2 s width determines the waveform origin. All images follow the 3x4+1 standard with calibration pulse on the left. Eyeballing the images, the vertical spacing looks uniform.</p>",
      "rawMarkdown": "A calibration pulse of 1 mV amplitude and 0.2 s width determines the waveform origin. All images follow the 3x4+1 standard with calibration pulse on the left. Eyeballing the images, the vertical spacing looks uniform.",
      "votes": null
    },
    {
      "id": "3327905",
      "postDate": "11/15/2025 16:22:57",
      "content": "<p>Thank you, but I'm not talking about the input, but about the hypothetical output resulting from the signals calculated by the models. Is there a criterion for the distance between those two resulting leads, or is any distance acceptable?</p>",
      "rawMarkdown": "Thank you, but I'm not talking about the input, but about the hypothetical output resulting from the signals calculated by the models. Is there a criterion for the distance between those two resulting leads, or is any distance acceptable?",
      "votes": null
    },
    {
      "id": "3328447",
      "postDate": "11/15/2025 19:15:49",
      "content": "<p>Do you mean min/max vertical distance? The minimum can be less than 0, i.e. waveforms overlap. Not sure if there is a hard limit on max distance.</p>",
      "rawMarkdown": "Do you mean min/max vertical distance? The minimum can be less than 0, i.e. waveforms overlap. Not sure if there is a hard limit on max distance.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 3326238,
      "author_name": "pauljurczak",
      "author_url": "",
      "post_date": "11/15/2025 09:21:14",
      "content": "<p>A calibration pulse of 1 mV amplitude and 0.2 s width determines the waveform origin. All images follow the 3x4+1 standard with calibration pulse on the left. Eyeballing the images, the vertical spacing looks uniform.</p>",
      "votes": null,
      "replies": [
        {
          "id": 3327905,
          "author_name": "yasbolaghy",
          "author_url": "",
          "post_date": "11/15/2025 16:22:57",
          "content": "<p>Thank you, but I'm not talking about the input, but about the hypothetical output resulting from the signals calculated by the models. Is there a criterion for the distance between those two resulting leads, or is any distance acceptable?</p>",
          "votes": null,
          "replies": [
            {
              "id": 3328447,
              "author_name": "pauljurczak",
              "author_url": "",
              "post_date": "11/15/2025 19:15:49",
              "content": "<p>Do you mean min/max vertical distance? The minimum can be less than 0, i.e. waveforms overlap. Not sure if there is a hard limit on max distance.</p>",
              "votes": null,
              "replies": []
            }
          ]
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "3324077": "Hello everyone, as I understand it, the vertical distance between the two leads resulting from the output signals of each model does not have a specific criterion and can vary!? Please comment.",
    "3326238": "A calibration pulse of 1 mV amplitude and 0.2 s width determines the waveform origin. All images follow the 3x4+1 standard with calibration pulse on the left. Eyeballing the images, the vertical spacing looks uniform.",
    "3327905": "Thank you, but I'm not talking about the input, but about the hypothetical output resulting from the signals calculated by the models. Is there a criterion for the distance between those two resulting leads, or is any distance acceptable?",
    "3328447": "Do you mean min/max vertical distance? The minimum can be less than 0, i.e. waveforms overlap. Not sure if there is a hard limit on max distance."
  },
  "source": "meta"
}