Cone-shaped detectors

• Super-resolution: measure ‘pixels in between’

• The used aperture should be deconvolved

• Deconvolution is a division in the Fourier domain

• Instable when zeros in apodization function (standard array)

Opname 1

• Super-resolution: measure ‘pixels in between’

• The used aperture should be deconvolved

• Deconvolution is a division in the Fourier domain

• Instable when zeros in apodization function (standard array)

Opname 2

• Super-resolution: measure ‘pixels in between’

• The used aperture should be deconvolved

• Deconvolution is a division in the Fourier domain

• Instable when zeros in apodization function (standard array)

Opname 3

• Super-resolution: measure ‘pixels in between’

• The used aperture should be deconvolved

• Deconvolution is a division in the Fourier domain

• Instable when zeros in apodization function (standard array)

Opname 4

2x zo hoge resolutie in x en y

Biological inspiration:

Why do retinal cones have a cone shape?

• Best apodization function• Super-resolution by micro-saccades• Enough light shape over volume

Model: integral of detector layers. Two physical constructions possible

Micro-saccades

Apodization functionof cone-shaped detector

or

Pit detector Mask

Light

Classical apodization functions

Principle supported by models and simulations

With NIKHEF labs (FOM, Amsterdam) we build a prototype X-ray detectorwith pit-shaped sensitivity profile

Visible light:• Digital cameras with shake reduction by movable sensor• Microscopy super-resolution (piezo X-Y table, optical elements or detector array)

X-Ray:• Dental X-ray high resolution• X-ray crack and welding inspection