An image dataset of Chinese hickory in natural orchards
Na Jia, Chengjin Fu, Kai Chen, Jiuqing Liu · 2026
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Description
Na Jia and co-authors release a photo data set of Chinese hickory fruit in real orchards. Their 2026 paper describes 1,661 large canopy photos from Zhejiang Province, spanning fruit growth to harvest. More than three thousand fruits are boxed and graded into three ripeness levels, plus an unsure class.
Each photo passed quality checks, and labels went through two rounds with blind cross-checks. A resized copy of the set and rich side data on light and fruit shape come with the release. Pull-force tests confirm the grades track real ripeness in the tree. Trial models trained on the set judged ripeness well. Growers and engineers can reuse the set for yield counts and picking robots.
Catalog record
| CREATOR | Na Jia, Chengjin Fu, Kai Chen, Jiuqing Liu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 48 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |