![\"\"](\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F214989%2F4b2ec9242438b493e45149c06cb4c72f%2Funnamed.png?generation=1751111763602575&alt=media\")
I wanted to know more about how tof sensors are placed. These sensors are like image sensors but they capture depth right? In this case how exactly is the sensor placed? Like looking away from the wrist? if yes then whats the point of that? Can someone explain me using some picture or illustrations (I have looked at the overview image but didnt understood)
", "messages": [ { "id": "3234172", "postDate": "06/27/2025 15:22:17", "content": "I wanted to know more about how tof sensors are placed. These sensors are like image sensors but they capture depth right? In this case how exactly is the sensor placed? Like looking away from the wrist? if yes then whats the point of that? Can someone explain me using some picture or illustrations (I have looked at the overview image but didnt understood)
", "rawMarkdown": "I wanted to know more about how tof sensors are placed. These sensors are like image sensors but they capture depth right? In this case how exactly is the sensor placed? Like looking away from the wrist? if yes then whats the point of that? Can someone explain me using some picture or illustrations (I have looked at the overview image but didnt understood)", "votes": null }, { "id": "3234785", "postDate": "06/28/2025 10:11:13", "content": "As per my understanding, the device is mounted on the palmar wrist (opposite of where you would wear a wrist-watch; facing the same direction as the palm)
\nThe ToF and Thermopile Sensors are thus also facing in the direction of the palm.
\nThis can be useful for detecting whether the palm side is facing your head/neck and how far it is away from it; e.g. for the Pull Hair / Scratch / Pinch Skin gestures or measuring no object / high distance for facing into the air in e.g. \"Wave hello\" or \"Write name in air\".
\nThis is also visualized in the Overview Section and can be seen in the video examples.
\nHope this helps
https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/overview
", "rawMarkdown": "\n\n\nhttps://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/overview", "votes": null }, { "id": "3236619", "postDate": "06/30/2025 13:39:27", "content": "This makes sense. Thank you!
", "rawMarkdown": "This makes sense. Thank you!", "votes": null } ], "comments": [ { "id": 3234785, "author_name": "patrickaiforfun", "author_url": "", "post_date": "06/28/2025 10:11:13", "content": "As per my understanding, the device is mounted on the palmar wrist (opposite of where you would wear a wrist-watch; facing the same direction as the palm)
\nThe ToF and Thermopile Sensors are thus also facing in the direction of the palm.
\nThis can be useful for detecting whether the palm side is facing your head/neck and how far it is away from it; e.g. for the Pull Hair / Scratch / Pinch Skin gestures or measuring no object / high distance for facing into the air in e.g. \"Wave hello\" or \"Write name in air\".
\nThis is also visualized in the Overview Section and can be seen in the video examples.
\nHope this helps
This makes sense. Thank you!
", "votes": null, "replies": [] } ] }, { "id": 3234849, "author_name": "steubk", "author_url": "", "post_date": "06/28/2025 11:56:39", "content": "
https://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/overview
", "votes": null, "replies": [] } ], "raw_markdown_by_id": { "3234172": "I wanted to know more about how tof sensors are placed. These sensors are like image sensors but they capture depth right? In this case how exactly is the sensor placed? Like looking away from the wrist? if yes then whats the point of that? Can someone explain me using some picture or illustrations (I have looked at the overview image but didnt understood)", "3234785": "As per my understanding, the device is mounted on the palmar wrist (opposite of where you would wear a wrist-watch; facing the same direction as the palm)\nThe ToF and Thermopile Sensors are thus also facing in the direction of the palm.\nThis can be useful for detecting whether the palm side is facing your head/neck and how far it is away from it; e.g. for the Pull Hair / Scratch / Pinch Skin gestures or measuring no object / high distance for facing into the air in e.g. \"Wave hello\" or \"Write name in air\".\nThis is also visualized in the Overview Section and can be seen in the video examples.\nHope this helps", "3234849": "\n\n\nhttps://www.kaggle.com/competitions/cmi-detect-behavior-with-sensor-data/overview", "3236619": "This makes sense. Thank you!" }, "source": "meta" }