Wavefront Coding
Wavefront Coding Wavefront Coding
from physics.gla.ac.uk
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13.07.2015
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Miniaturisation of zoom lenses
Single-moving-element zoom lenses:the problem• Conventional zoom lenses have atleast two moving elements:• A zoom element• A compensator• Single-moving element zoom lensescannot be miniaturised due toexcessive defocus:• Hybrid imaging can mitigatedefocus….10mm39 39
- Page 1 and 2: Computational Imaging:More pixels,
- Page 3 and 4: Why computational imaging?• Imagi
- Page 5 and 6: Hybrid imaging5
- Page 7 and 8: The additional parameter space with
- Page 9 and 10: Effect of defocus when usingsymmetr
- Page 11 and 12: Optimisation of artefact-free imagi
- Page 13 and 14: Through-focus imaging fidelity13
- Page 15 and 16: Expected imaging error• errorε 2
- Page 17 and 18: Relative performance of cubic, pure
- Page 19 and 20: Optimum phase amplitudeα optimum
- Page 21 and 22: Artefacts⎡OH o'(x, y) = I −1 W2
- Page 23 and 24: Decomposition of OTF• Defocus:•
- Page 25 and 26: The origin of image replicationsOTF
- Page 27 and 28: Parametric blind-deconvolution:Calc
- Page 29 and 30: Accuracy of optical W 20DError in W
- Page 31 and 32: Simplification of LWIR F/1 f=75mm G
- Page 33 and 34: Pure and Generalised Cubic Solution
- Page 35 and 36: IR singlet and phase maskDesignManu
- Page 37: And as a movie37
- Page 41 and 42: No Phase maskGeneralised CubicPure
Miniaturisation of zoom lenses
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