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Tom Notch
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src/components/MotivationFigures.tsx

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@@ -85,7 +85,7 @@ interface FigureDef {
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}
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const figures: FigureDef[] = [
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{ src: "Tailored_Planar_Model.svg", label: "Tailored Planar Model" },
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{ src: "Tailored_Planar_Model.svg", label: "Lens-Specific Planar Model" },
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{
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src: "Equivariance_vs_Invariance.svg",
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label: "Equivariance vs Invariance",

src/paper.mdx

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## Motivation
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Most vision pipelines apply planar CNNs that assume a pinhole camera and operate on regular 2D grids. Each camera type (pinhole, fisheye, panoramic) has a unique projection geometry, forcing practitioners to train **separate, lens-specific models**. This is **mathematically unavoidable**: by Gauss's *Theorema Egregium*, no flat projection preserves the intrinsic curvature of the sphere, so any 2D representation inevitably distorts geometry.
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Most vision pipelines apply planar CNNs that assume a pinhole camera and operate on regular 2D grids. Each camera type (pinhole, fisheye, panoramic) has a unique projection geometry, forcing practitioners to train **separate, lens-specific models** that inevitably overfit onto the distortion patterns they see. This is **mathematically unavoidable**: by Gauss's *Theorema Egregium*, no flat projection preserves the intrinsic curvature of the sphere, so any 2D representation inevitably distorts geometry.
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<MotivationFigures client:idle />
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</TabsContent>
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</Tabs>
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**Geometry caching is the key enabler**: once neighborhood structures and interpolation weights are precomputed, sustained runtime drops by **orders of magnitude**. Without caching, geometric preprocessing would dominate and make spherical pipelines infeasible at scale. With caching, spherical networks run at roughly **** the wall-clock time of planar counterparts, which we consider acceptable given the added geometric consistency, rotation equivariance, and lens-agnostic processing.
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**Geometry caching is the key enabler**: once neighborhood structures and interpolation weights are precomputed, sustained runtime drops by **orders of magnitude**. Without caching, geometric preprocessing would dominate and make spherical pipelines infeasible at scale. With caching, spherical networks train at roughly **** the wall-clock time of planar counterparts, which we consider acceptable given the added geometric consistency, rotation equivariance, and lens-agnostic processing.
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## Citation
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src/styles/global.css

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@apply cursor-pointer;
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}
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}
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.prose p {
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hyphens: auto;
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text-align: justify;
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}

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