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| project:spectrum [2026/08/03 02:26] – [Found Objects & Feathers] wikarai | project:spectrum [2026/08/03 04:15] (current) – [Multispectral Specimen Index] wikarai |
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| ====== Multispectral Specimen Index ====== | ====== Multispectral Specimen Index ====== |
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| Catalogue comparing light reflection, absorption, and structural signatures across: | Catalogue of light reflection, absorption, and structural signatures across: |
| * **Visible (380–700nm)**, | * **Visible (380–700nm)**, |
| * **Near-Infrared / NIR (700–1000nm)** | * **Near-Infrared / NIR (700–1000nm)** |
| * **Ultraviolet / UV (300–400nm)** | * **Ultraviolet / UV (300–400nm)** |
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| Wavebands using full-spectrum sensor rigs and bandpass filters. | w/ wavebands using full-spectrum sensor rigs and bandpass filters. |
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| //To be added / notes// | //To be added / notes// |
| * UV re-emissions column (i.e. visible light (neon colours) from UV, what most people think of as what UV reveals.) | * UV re-emissions column (i.e. visible light (neon colours) from UV, what most people think of as what UV reveals.) |
| * NIR-bandpass filter (falsecolour from my DSLR which contrasts visible light i.e. my other NIR photography.) | * NIR-bandpass filter (falsecolour from my DSLR which contrasts visible light i.e. my other NIR photography.) |
| | * Some missing |
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| ===== Botanical & Flora ===== | ===== Botanical & Flora ===== |
| ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Spectral Notes ^ | ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Spectral Notes ^ |
| | Mountain Ash | {{ :project:mtn-ash-vis.jpg?180 }} | {{ :project:mtn-ash-nir.jpg?180 }} | {{ :project:mtn-ash-uv.jpg?327 }} | High NIR foliage bounce; dark UV absorption across ripe berry clusters. | | | Mountain Ash | {{ :project:mtn-ash-vis.jpg?180 }} | {{ :project:mtn-ash-nir.jpg?180 }} | {{ :project:mtn-ash-uv.jpg?327 }} | High NIR foliage bounce; dark UV absorption across ripe berry clusters. | |
| | Rose Hips | {{ :project:rosehip-vis.jpg?180 }} | {{ :project:rosehip-nir.jpg?180 }} | {{ :project:rosehip-uv.jpg?327 }} | Waxy cuticle UV bounce; contrasting dark hip body vs bright NIR foliage. | | | Rose Hips | {{ :project:rosehip-vis.jpg?180 }} | {{ :project:rosehip-nir.jpg?180 }} | {{ :project:rosehip-uv.jpg?327 }} | Waxy [[wp>Plant cuticle|cuticle]] UV bounce; contrasting dark hip body vs bright NIR foliage. | |
| | Himalayan Blackberry | {{ :project:him-blkbry-vis.jpg?180 }} | {{ :project:him-blkbry-nir.jpg?180 }} | {{ :project:him-blkbry-uv.jpg?327 }} | Strong foliage NIR bloom; high-gloss drupelet UV absorption. | | | Himalayan Blackberry | {{ :project:him-blkbry-vis.jpg?180 }} | {{ :project:him-blkbry-nir.jpg?180 }} | {{ :project:him-blkbry-uv.jpg?327 }} | Strong foliage NIR bloom; high-gloss [[wp>Drupe#Drupelet|drupelet]] UV absorption. | |
| | Oregon Grape | {{ :project:oregon-grape-vis.jpg?180 }} | {{ :project:oregon-grape-nir.jpg?180 }} | {{ :project:oregon-grape-uv.jpg?327 }} | Heavy cuticle UV surface scattering; high parenchymal NIR reflection. | | | Oregon Grape | {{ :project:oregon-grape-vis.jpg?180 }} | {{ :project:oregon-grape-nir.jpg?180 }} | {{ :project:oregon-grape-uv.jpg?327 }} | Heavy cuticle UV surface scattering; high [[wp>Parenchyma|parenchymal]] NIR reflection. | |
| | Morning Glory / Moonflower | {{ :project:moonflower-vis.jpg?180 }} | {{ :project:moonflower-nir.jpg?180 }} | {{ :project:moonflower-uv.jpg?327 }} | Throat absorbs UV heavily ("bullseye target") vs reflective outer limb. | | | Morning Glory / Moonflower | {{ :project:moonflower-vis.jpg?180 }} | {{ :project:moonflower-nir.jpg?180 }} | {{ :project:moonflower-uv.jpg?327 }} | Throat absorbs UV heavily ("bullseye target") vs reflective outer [[wp>Corolla (flower)|limb]]. Moths use this guide at night, UV from the moon! | |
| | Lavender | {{ :project:lav-vis.jpg?180 }} | | {{ :project:lav-uv.jpg?327 }} | Essential oil trichomes scatter UV; calyx tissue absorbs UV. | | | Lavender | {{ :project:lav-vis.jpg?180 }} | | {{ :project:lav-uv.jpg?327 }} | [[wp>Essential oil|Essential oil]] [[wp>Trichome|trichomes]] scatter UV; [[wp>Calyx (botany)|calyx]] tissue absorbs UV. | |
| | Lavender Yarrow | {{ :project:yarrow-lav-vis.jpg?180 }} | | {{ :project:yarrow-lav-uv.jpg?327 }} | Disc florets absorb UV intensely; ray petals maintain UV contrast. | | | Lavender Yarrow | {{ :project:yarrow-lav-vis.jpg?180 }} | | {{ :project:yarrow-lav-uv.jpg?327 }} | [[wp>Pseudanthium#Disc florets|Disc florets]] absorb UV intensely; [[wp>Ray floret|ray petals]] maintain UV contrast. | |
| | Himalayan Balsam | {{ :project:him-balsam-vis.jpg?180 }} | {{ :project:him-balsam-nir.jpg?180 }} | {{ :project:him-balsam-uv.jpg?327 }} | Pronounced UV absorption gradient running into inner throat. | | | Himalayan Balsam | {{ :project:him-balsam-vis.jpg?180 }} | {{ :project:him-balsam-nir.jpg?180 }} | {{ :project:him-balsam-uv.jpg?327 }} | Pronounced UV absorption gradient running into inner throat. | |
| | Black-Eyed Susan | {{ :project:susan-vis.jpg?180 }} | | {{ :project:susan-uv.jpg?327 }} | Central cone & inner petal bases absorb UV; outer tips reflect UV. | | | Black-Eyed Susan | {{ :project:susan-vis.jpg?180 }} | | {{ :project:susan-uv.jpg?327 }} | Central cone & inner petal bases absorb UV; outer tips reflect UV. | |
| | Daylily | {{ :project:daylily-vis.jpg?180 }} | | {{ :project:daylily-uv.jpg?327 }} | Anthers & nectar guides absorb UV sharply against reflective petals. | | | Daylily | {{ :project:daylily-vis.jpg?180 }} | | {{ :project:daylily-uv.jpg?327 }} | [[wp>Anther|Anthers]] & [[wp>Nectar guide|nectar guides]] absorb UV sharply against reflective petals. | |
| | Meadow Dandelion | {{ :project:meadow-dand-vis.jpg?180 }} | {{ :project:meadow-dand-nir.jpg?180 }} | {{ :project:meadow-dand-uv.jpg?175 }} | Inner floret base absorbs UV, creating a prominent radial bullseye. | | | Meadow Dandelion | {{ :project:meadow-dand-vis.jpg?180 }} | {{ :project:meadow-dand-nir.jpg?180 }} | {{ :project:meadow-dand-uv.jpg?175 }} | Inner [[wp>Floret|floret]] base absorbs UV, creating a prominent radial bullseye. | |
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| ===== Found Objects & Feathers ===== | ===== Found Objects & Feathers ===== |
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| ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Structural Notes ^ | ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Structural Notes ^ |
| | Blue Jay Feather | {{ :project:bluejay-vis.jpg?180 }} | {{ :project:bluejay-nir.jpg?180 }} | {{ :project:bluejay-uv.jpg?327 }} | Tyndall structural blue drops out in NIR (melanin base absorbs); keratin scatters UV which birds can observe. | | | Stellar's Jay Feather | {{ :project:bluejay-vis.jpg?180 }} | {{ :project:bluejay-nir.jpg?180 }} | {{ :project:bluejay-uv.jpg?327 }} | [[wp>Tyndall effect|Tyndall]] structural blue drops out in NIR ([[wp>Melanin|melanin]] base absorbs); [[wp>Keratin|keratin]] scatters UV which birds can observe. | |
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| ===== Body & Optical Applications ===== | ===== Body & Optical Applications ===== |
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| //TBA// - better photos to demonstrate, placeholder. | //TBA// - waiting on better photos to demonstrate, placeholder. |
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| ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Bandpass/Absorption Notes ^ | ^ Specimen ^ Visible (VIS) ^ Near-Infrared (NIR) ^ Ultraviolet (UV) ^ Bandpass/Absorption Notes ^ |
| | Sunscreen Application | | | | Invisible in VIS/NIR; (Note: Chemical/carbon-based i.e. oxybenzone absorbs and is jet-black, mineral-based sunscreens however reflect instead!) | | | Sunscreen Application | | | | Invisible in VIS/NIR; (Note: Chemical/carbon-based i.e. [[wp>Oxybenzone|oxybenzone]] absorbs and is jet-black, mineral-based sunscreens however reflect instead!) | |
| | Clear Corrective Lenses | | | | Transparent in VIS/NIR; opaque UV-blocking coating block. | | | Clear Corrective Lenses | | | | Transparent in VIS/NIR; opaque UV-blocking coating block. | |
