Nondestructive assessment of ripeness in kiwifruit with near-infrared pulse illumination
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866911495722369024 |
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| author | Ishiji, Hiyori Kanatsu, Hiroki Komatsubara, Masaki Minata, Shingo Uesugi, Masaki Yuguchi, Kohei Machida, Manabu |
| author_facet | Ishiji, Hiyori Kanatsu, Hiroki Komatsubara, Masaki Minata, Shingo Uesugi, Masaki Yuguchi, Kohei Machida, Manabu |
| contents | We investigate the ripeness of kiwifruit nondestructively with near-infrared pulse illumination. With this measurements in time domain, only one frequency (the wavelength 800 nm is required. Measurements were performed on three golden kiwifruits over a period of ten days. To quantify changes in temporal profiles of the detected light, we introduce two indices: the relative ripeness $r(n)$ and the first Wasserstein distance $W_1(n)$. Both indices exhibit nonmonotonic behavior. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2603_07226 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Nondestructive assessment of ripeness in kiwifruit with near-infrared pulse illumination Ishiji, Hiyori Kanatsu, Hiroki Komatsubara, Masaki Minata, Shingo Uesugi, Masaki Yuguchi, Kohei Machida, Manabu Biological Physics Optics We investigate the ripeness of kiwifruit nondestructively with near-infrared pulse illumination. With this measurements in time domain, only one frequency (the wavelength 800 nm is required. Measurements were performed on three golden kiwifruits over a period of ten days. To quantify changes in temporal profiles of the detected light, we introduce two indices: the relative ripeness $r(n)$ and the first Wasserstein distance $W_1(n)$. Both indices exhibit nonmonotonic behavior. |
| title | Nondestructive assessment of ripeness in kiwifruit with near-infrared pulse illumination |
| topic | Biological Physics Optics |
| url | https://arxiv.org/abs/2603.07226 |