Synthetic ladder — 4.0 mm/px — dense
synth-ladder-4-dense · 1280 × 960 px · 4.00 mm/px · 15 m AGL · DJI Mavic 3E — wideCC0 (generated) — Synthetic scene — EmerTech generator
Nothing selected. Click near a mark to inspect it — every record carries its observer, timestamp and the method it was drawn with, because a count is only as defensible as its provenance.
Your marks
0 marks on this frame — 0 plants, 0 hard negatives.
Agreement vs known truth
Centre-distance matching at 12.0 px — the rule the bake-off scores models with.
You found 0 of 237 plants · recall 0.0%
Truth here is exact by construction, so this is a self-test of the human eye at this ground sample distance — not a model score. A mark landing on a planted hard negative counts as a false mark, exactly as it would for a detector.
Keyboard
Everything is one keystroke away — hands stay on the frame.
- 1 – 4
- pick species
- X
- hard-negative mode
- M
- swap diameter / corners
- Esc
- cancel the first click, or deselect
- Del
- delete the selected mark
- F
- fit the frame
- Space + drag
- pan — or middle-drag, or just drag
- Wheel
- zoom about the cursor
Feeds the bake-off
The workbench is not a side quest — it is the input to the exemplar lane.
These boxes are exactly what the exemplar model lane consumes — annotate 3, then run the bake-off. Hard negatives go in as negative exemplars, which is how a detector is told that a schist chip is not a plant.