Spatial-domain laser-light scanning deconvolution of blurred photographs using the general holographic deblurring filter

Stroke, George W.; Halioua, Maurice; Indebetouw, Guy; Poisson, Franck

doi:10.1016/0030-4018(70)90068-4

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1970

1981

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“…Methods based on this principle of spatial-domain convolution are dealt with in [8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Integral Sampling in Optics

1976

Optica Acta: International Journal of Optics

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An image can be sampled by taking as sample values either the image intensity at defined sample points or the image intensity integrated over regularly spaced raster cells . The latter concept, termed integral sampling, is investigated using deterministic and statistic methods . It is proved that the use of integral rather than point sampling results in reduced error due to aliasing when an image is reconstructed from its samples . Filters for optimal reconstruction from samples taken in the presence of noise are described . The special cases of integral sampling of high-pass filtered images and of binary pulse-code modulated images are analysed . Integral sampling can be performed optically ; it is shown to be of practical interest for image evaluation (thematic mapping) and for optical spatial regenerative repeaters .

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“…Methods based on this principle of spatial-domain convolution are dealt with in [8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%