other:dsx:x4d:tutorials:track_multiple_bones
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| other:dsx:x4d:tutorials:track_multiple_bones [2024/07/17 15:44] – created sgranger | other:dsx:x4d:tutorials:track_multiple_bones [2025/06/04 14:57] (current) – Cleaned up page and added section headers. Added reference to basic guide. wikisysop | ||
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| ====== Track Multiple Bones ====== | ====== Track Multiple Bones ====== | ||
| - | || | + | Before beginning this tutorial, ensure that you are familiar with the steps in the [[other: |
| + | |||
| + | ===== Overview ===== | ||
| Unless the bones overlap in the X-ray images, it is better to track bones one at a time. This is because for each iteration the optimizer randomly positions each bone and then evaluates the fit of all of them together. If one bone was moved to a slightly better pose while the others were moved to worse ones (a common occurrence), | Unless the bones overlap in the X-ray images, it is better to track bones one at a time. This is because for each iteration the optimizer randomly positions each bone and then evaluates the fit of all of them together. If one bone was moved to a slightly better pose while the others were moved to worse ones (a common occurrence), | ||
| + | |||
| + | ===== Tracking Two Bones ===== | ||
| Even if there is overlap of bones, it is often preferable to track them separately. In these cases, a good strategy is to track one bone first, then to lock it in place and track a second bone with the first one still active. | Even if there is overlap of bones, it is often preferable to track them separately. In these cases, a good strategy is to track one bone first, then to lock it in place and track a second bone with the first one still active. | ||
| For example, when tracking the bones at the knee there is often substantial overlap between the femur and the patella. The recommended strategy is as follows: | For example, when tracking the bones at the knee there is often substantial overlap between the femur and the patella. The recommended strategy is as follows: | ||
| - | |||
| - select just the femur; | - select just the femur; | ||
| - track the femur by itself in all frames; | - track the femur by itself in all frames; | ||
| - select both the femur and patella; | - select both the femur and patella; | ||
| - | - uncheck the femur box in the [[Other: | + | - uncheck the femur box in the [[Other: |
| - optimize to track the patella. | - optimize to track the patella. | ||
other/dsx/x4d/tutorials/track_multiple_bones.txt · Last modified: 2025/06/04 14:57 by wikisysop