Comparing Heading Estimates from Multiple Wearable Inertial and Magnetic Sensors Mounted on Lower Limbs
Why this work is in the frame
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Bibliographic record
Abstract
This paper presents heading estimations from multiple low-cost wearable sensors distributed on the lower limb segments. A low-cost commercial motion capture suit from Enflux is used to record accelerometer, gyroscope and magnetometer measurements. Roll and pitch angles from each sensor are estimated to level each magnetometer. The sensor orientations are computed using a Kalman filter. The step length is computed using the sensor mounted on the pelvis while the stride length is computed using the foot-mounted sensors. The results show that the pelvis is the best location to track pedestrian heading while other sensors have poor performance due to difficulty in estimating the roll and pitch angles.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it