![\"\"](\"https://www.googleapis.com/download/storage/v1/b/kaggle-user-content/o/inbox%2F2164736%2F529664bb1f8bda4d128f8e0db3d2f857%2F1.png?generation=1573538403958130&alt=media\")
\nWhy is the roll angle close to the negative π when the front of the car is forward....\nWhy is the roll angle close to the negative π when the front of the car is forward....
\nWhy is the roll angle close to the negative π when the front of the car is forward....
The roll of the cars in the train.csv isn't the turn angle but the angle the car is leaning. Pitch is the value for turn angle: -3.1 (sometimes 3.1) for facing camera, 0 for facing away, 1.6 for facing left, -1.6 for facing right. (Yes it is wrong but that is how the competition is formatted)
", "rawMarkdown": "The roll of the cars in the train.csv isn't the turn angle but the angle the car is leaning. Pitch is the value for turn angle: -3.1 (sometimes 3.1) for facing camera, 0 for facing away, 1.6 for facing left, -1.6 for facing right. (Yes it is wrong but that is how the competition is formatted)", "votes": null }, { "id": "671391", "postDate": "11/12/2019 16:21:48", "content": "Well....It's too confusing for new
", "rawMarkdown": "Well....It's too confusing for new", "votes": null }, { "id": "685651", "postDate": "12/02/2019 04:08:29", "content": "So what is roll, then?\nAll of these values I find puzzling. What does the y-coordinate signify? All of the cars are on the same level, so y should be constant or nearly so in every case. Z means distance from camera, measured along a line shooting straight out forward. I think.
\n\nIs any of this documented anywhere?
", "rawMarkdown": "So what is roll, then?\nAll of these values I find puzzling. What does the y-coordinate signify? All of the cars are on the same level, so y should be constant or nearly so in every case. Z means distance from camera, measured along a line shooting straight out forward. I think. \n\nIs any of this documented anywhere?", "votes": null }, { "id": "685881", "postDate": "12/02/2019 13:09:21", "content": "More detail in my post here: https://www.kaggle.com/c/pku-autonomous-driving/discussion/117998#latest-676983\nY is based on the image but they do generally go between 5-10.
\nThere is no official documentation anywhere for this competition for interpreting what the values they want us the find mean.
The roll of the cars in the train.csv isn't the turn angle but the angle the car is leaning. Pitch is the value for turn angle: -3.1 (sometimes 3.1) for facing camera, 0 for facing away, 1.6 for facing left, -1.6 for facing right. (Yes it is wrong but that is how the competition is formatted)
", "votes": null, "replies": [ { "id": 671391, "author_name": "changewow", "author_url": "", "post_date": "11/12/2019 16:21:48", "content": "Well....It's too confusing for new
", "votes": null, "replies": [] }, { "id": 685651, "author_name": "ericfowler", "author_url": "", "post_date": "12/02/2019 04:08:29", "content": "So what is roll, then?\nAll of these values I find puzzling. What does the y-coordinate signify? All of the cars are on the same level, so y should be constant or nearly so in every case. Z means distance from camera, measured along a line shooting straight out forward. I think.
\n\nIs any of this documented anywhere?
", "votes": null, "replies": [] }, { "id": 685881, "author_name": "greatgamedota", "author_url": "", "post_date": "12/02/2019 13:09:21", "content": "More detail in my post here: https://www.kaggle.com/c/pku-autonomous-driving/discussion/117998#latest-676983\nY is based on the image but they do generally go between 5-10.
\nThere is no official documentation anywhere for this competition for interpreting what the values they want us the find mean.