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INDUSTRY FIELD GUIDE

Mushroom tray and harvest-stage data for AI

A tray photo can show caps at several stages.

By Fiund · Updated 2026-11-05

NAICS 111411 · Mushroom Production

A tray photo can show caps at several stages. A model may need to identify individual mushrooms without assuming a whole tray is ready at the same moment. Penn State Extension publishes mushroom production and harvest resources, and USDA publishes mushroom grade standards. These sources establish production and visual context for a focused annotation project. Penn State mushroom production and harvesting · USDA mushroom grade standards

Photograph an owned demo tray twice from a fixed position. Record the tray ID, flush or observation stage, time gap, and which cap the grower reviewed. Include one partially occluded specimen and one cap that is visibly similar to a neighbor. The labels can distinguish location, apparent feature, and whether the expert could verify it from the view. Hold out a different tray or production setup to test transfer.

Use only approved access in hygienic areas. Keep substrate formulations, crop plans, employee details, and any production incident images private. A controlled tray is enough to demonstrate the annotation.

Describe the mushroom tray collection

Original Fiund exercise

A reviewed cap does not assign the same stage to its whole tray

An original fictional tray sequence uses cap IDs and reviewer labels. It includes no real imagery, substrate recipe, production incident or harvesting instruction.

Fictional records supplied to the evaluator
RecordSourceWhat it records
MU1Tray A, first viewCaps C1 and C2 visible and similar in color; C3 partly occluded. Reviewer marks C1 stage S under an original practice rubric; C2 and C3 unreviewed.
MU2Tray A, second viewFixed camera, later time. Cross-view annotation confirms C1 identity. C2 overlaps C3 and their individual boundaries are ambiguous.
MU3Stage summary draftDraft labels every cap in Tray A as S because C1 was reviewed. Separate Tray B has no reviewed labels.

Question for the model

Which stage label is supported, and what uncertainty should be retained for the other caps and evaluation tray?

Show the reference answer and checks

MU1 supports stage S for C1 only, with MU2 preserving its cross-view identity. Similar color does not review C2, and occlusion limits C3. MU2 adds a boundary ambiguity between those two caps rather than resolving it. MU3's tray-wide assignment exceeds the supplied labels. Keep object-level review and visibility explicit, and use separately reviewed Tray B as a potential holdout instead of assuming the entire tray shares one stage.

  • Propagating one reviewed specimen's stage to every cap in a tray.
  • Merging overlapping specimens or assigning identities without sufficient cross-view evidence.

Fields to preserve

Tray, cap and view timestamp
Preserves individual identity.
Visible boundary and occlusion
Defines what can be inspected.
Rubric and reviewer-label scope
Limits the supported stage assignment.

Test another case

Use an original second-tray sequence with independently reviewed caps and changed spacing. Evaluate transfer without adjacent-frame overlap with development data.

Use owned demo trays or synthetic annotations. Clear hygienic-area access separately and exclude formulations, plans and employee details.

Download this fictional example and answer key (JSON)

Discuss a contribution

Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.

Primary sources and further reading