Ship detection using polarimetric Radarsat-2
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The scattered wave polarization anisotropy was shown to be very promising for ship detection using polarimetric C-band Convair 580 SAR [1]. The results obtained with Radarsat-2 (RS2) wide fine quad-pol mode (FQWS) are in agreement with the ones previously obtained with the Convair-580 SAR. The use of fully polarimetric RS2 information permits a significant improvement of the shipsea contrast in comparison with conventional (i.e., scalar) single channel polarizations (i.e., HH, VV, or HV). Shore-based radar tracks of ship traffic obtained from the Canadian Coast Guard (CCG) are used as a source of ground truth for the ships imaged with RS2 in the Strait of Georgia, near Vancouver. This data set, which includes small and large ships viewed at various orientations and incidence angles, permit an excellent demonstration of the superior RS2 polarimetric capabilities for ship detection in comparison with single and dual-polarization modes.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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