Data format guide #60
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roaldarbol
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Nov 18, 2024
| ### Data Files | ||
| `freemocap_sample_data_frame_name_xyz.npy` is a numpy data array, where the first dimension is the frame number, the second dimension is the keypoint, and the third dimension is the xyz location of the keypoint. | ||
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| `freemocap_sample_data_by_trajectory.csv` is comma separated values file, where each column is a trajectory of a keypoint in one dimension, and each row is a frame. The first two columns are `timestamp` and `timestamp_by_camera`, giving the timestamps for each frame if they're available. The rest of the columns are the trajectory of each tracked keypoint, split into a column for each xyz dimension. The column names look like `body_nose_x`, `right_forearm_y`, and `full_body_com_z`. |
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What does timestamp_by_camera contain? Does it mean that if there are three cameras, this single column contains three timestamps?
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Generally looks really good! Definitely an improvement! |
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Based on the request here, this adds documentation of our folder structure and data format. I'm documenting the data in it's current state, but I think this guide will also be useful in deciding which versions of the redundant data we offer that are worth supporting in the future, and identifying potential new data formats that would be helpful