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Deep, complex, invertible networks for inversion of transmission effects in multimode optical fibres
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| use complex-valued dense layer instead of real-valued (ablation) | Single dense layer speckle inversion · 1m fibre, 112x112 speckle | MSE: 1025.96 -> 960.31 | Helped |
| add l2 weight regularisation to complex layer (ablation) | Complex dense layer · 1m fibre, 112x112 speckle | MSE: 960.31 -> 962.33 | No clear effect |
| add unitary regularisation to complex layer (ablation) | Complex dense layer · 1m fibre, 112x112 speckle | MSE: 960.31 -> 989.28 | Hurt |
| add multiscale pooled output pyramid to complex layer (ablation) | Complex dense layer · 1m fibre, 112x112 speckle | MSE: 960.31 -> 988.10 | Hurt |
| increase speckle image resolution from 14 to 224 pixels (ablation) | Single complex layer with l2 regularisation · 28x28 target inversion | image quality (qualitative) | Helped |
| increase fibre length from 1m to 10m | Complex dense inversion · Muybridge frames | image quality (qualitative) | Hurt |
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