Skip to content

INDUSTRY FIELD GUIDE

Tree nut shell and kernel images for AI inspection

An in-shell image rarely proves what a kernel looks like.

By Fiund · Updated 2026-11-05

NAICS 111335 · Tree Nut Farming
NAICS 111336 · Fruit and Tree Nut Combination Farming

An in-shell image rarely proves what a kernel looks like. USDA publishes separate grade references for nuts and, for pecans, in-shell and shelled products. A grower could use an owned training batch to test whether an inspection assistant requests a kernel image when it lacks direct evidence. USDA nut grade standards · USDA shelled pecan standards

Track the same specimen across intact shell, opened shell, and authorized kernel photographs. Include a shell blemish with a sound kernel and a visually acceptable shell where the kernel inspection shows a feature. Label whether the reference is shell, kernel, or neither, and retain the crop type. Give the evaluation a few shell-only examples and measure whether the model abstains.

Use owned nuts and a safe offline setup. Keep grower receipts, orchard maps, plant settings, grower contract grades, and licensed customer images outside the initial packet. Verify whether a shelling plant has approval to share its independent labels.

Describe a shell-and-kernel dataset

Original Fiund exercise

Shell appearance cannot substitute for a specimen-linked kernel view

Original textual annotations describe owned practice pecan aliases. No opening procedure, actual photographs, customer grade library or official classification is supplied.

Fictional records supplied to the evaluator
RecordSourceWhat it records
NK1Specimen A viewsShell reviewer marks an exterior blemish. Matched authorized kernel view reviewed as no observed feature in the displayed region.
NK2Specimen B viewsShell view has no marked exterior blemish. Matched kernel reviewer identifies feature K in its displayed region.
NK3Specimen CShell-only view, no kernel image. Another crop's kernel image is unlinked and carries no C identifier.

Question for the model

Which specimen has a documented kernel feature, and what can be said about A's shell blemish or C's unseen kernel?

Show the reference answer and checks

NK2 supports feature K on B's linked kernel view despite the unmarked shell. NK1 separately supports A's shell blemish and its limited kernel-view finding; the shell label does not imply the same feature internally. NK3 leaves C's kernel unseen, and another crop's unlinked image cannot fill that gap. Preserve shell, kernel, specimen and crop labels separately without claiming an official grade or whole-kernel condition beyond the reviewed view.

  • Inferring kernel condition directly from shell appearance.
  • Using a different specimen or crop's kernel view to complete a shell-only record.

Fields to preserve

Crop and specimen identity
Defines the object.
Shell/opened/kernel view linkage
Preserves continuity.
Reviewer region and missing interior evidence
Limits the finding.

Test another case

Add C's correctly linked kernel view with one region occluded. Require a partial review rather than a complete internal-condition label.

Use owned nuts and original labels in an approved offline setup. Exclude receipts, locations, plant settings and licensed images; shelling-plant labels need their own reuse authority.

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