Motion Artifact Reduction for Respiratory Monitoring: A Multichannel Ultrasound Sensor for Diaphragm Tracking
Why this work is in the frame
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Bibliographic record
Abstract
The ability to assess the respiratory rate reliably is vital in the application of remote health monitoring. A newly developed pulmonary monitoring system based on diaphragm wall motion tracking is evaluated under human physical activity. Diaphragm excursions are tracked by a designed ultrasound sensory system utilizing three ultrasound PZT5 piezo transducers. We assess the accuracy and reliability of this system in monitoring the diaphragmatic function and its contribution to the respiratory workload. We also examine inertial and pulse-oximetry sensors as two alternative methods. Measurements are compared to a spirometer as the gold standard. The tests are designed in this study to investigate the performance of employed sensors in both the stationary and non-stationary human body situations. We conclude that by the direct tracking of the diaphragm motion, the proposed ultrasound system is fundamentally robust to motion artifacts. Outstanding results were obtained for the proposed system from six subjects in six different test models with an average sensitivity, specificity and false alarm of 89.7%, 93.1%, and 6.3%, respectively.
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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 | 0.001 | 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 | 0.001 |
| 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