Bibliographic record
Abstract
Segmentation of ultrasound images is difficult due to the existence of speckle noise. Erroneous edges from speckle noise are not only abundant but also have large magnitude due to the multiplicative nature of speckle noise. Moreover, boundary edges are usually incomplete, being missing or weak at some places. We propose a system to address these problems in two steps. First, based on the observation that boundaries in ultrasound images have the appearance of straight or gently curving line segments, we adopt Sha'ahsua and Ullman's (1988) saliency map method to reduce speckle noise and enhance edges. Then we use a new snake model, which we call a systolic snake, to perform a multi-level feature search. The systolic snake can not only overcome local minima, but also effectively use both strong and weak image information. Furthermore, the system can be used in an automatic system since, unlike other snake models, ours does not need a close initialization The resulting system is tested on some ultrasound loin images and results are promising.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".