Virtual Caliper
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0.0 px
6-3-C_AB_3.png
nat_4x
abaxial
Annotated Full Micrograph
📊 Stomata Measurement Precision Analytics
Real-time accuracy benchmarking across cytotypes and leaf sides based on human review and digital calipers.
Total Reviewed
0
0% of review set
High Precision Rate
0%
Valid for ploidy sizing
Major Axis Mean Abs Error
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Model vs Human Caliper
Pore Width Mean Abs Error
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Aperture precision
Measurement Discrepancy Benchmarks (Model vs Human Digital Caliper)
| Morphometric Trait | Caliper Comparisons | Mean Abs Error (MAE) | Mean Bias (Model - Human) | Max Deviation |
|---|---|---|---|---|
| No caliper measurements recorded yet. Use the digital caliper tool to benchmark precision. | ||||
Active Reviewers & Audit Progress
| Reviewer | Stomata Reviewed | Median Time / Stoma | Last Active |
|---|---|---|---|
| Loading reviewer activity... | |||
🌿 Reviewer Guide & Digital Calipers
How to inspect and verify stomata measurements to benchmark precision for ploidy sizing.
1. Anatomical Measurement Dimensions
📏 Major Axis (Full Stoma Length)
Spans between the two guard cell junctions (poles). Key trait for ploidy level discrimination (diploids 2x vs tetraploids 4x).
📏 Minor Axis (Full Stoma Width)
Cross-sectional diameter perpendicular to the major axis at the centroid. Includes both guard cells and the pore.
🔵 Central Pore Aperture Width
Inner central opening diameter measured along the minor axis. Critical proxy for stomatal conductance ($g_{\text{smax}}$).
🟢 Guard Cell Width
Radial thickness of one guard cell: $\frac{L_{\text{minor}} - P_{\text{width}}}{2}$. Turgor regulation trait.
2. Keyboard Shortcuts
| 1 | High Precision (Suitable for ploidy sizing) |
| 2 | Minor Deviation (Acceptable for density) |
| 3 | Poor Measurement (Bad outline/pore missed) |
| 4 | False Stoma (Debris / non-stoma) |
| Enter | Save decision and advance to next stoma |
| C | Toggle Digital Caliper mode |
| X | Toggle CLAHE contrast filter |
| Space | Hold to peek at raw micrograph (hides overlays) |
| ← / → | Navigate previous / next stoma |