cone-shaped detectors
DESCRIPTION
Cone-shaped detectors. for superresolution C.F.C.Weststrate , B.M. ter Haar Romenij, M.J. Bastiaans. SUPER- RESOLUTion. Super-resolution: measure ‘pixels in between’ The used aperture should be deconvolved Deconvolution is a division in the Fourier domain - PowerPoint PPT PresentationTRANSCRIPT
• 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