eduzhai > Applied Sciences > Engineering >

Sympathetic quantisation -- a new approach to hologram quantisation

  • king
  • (0) Download
  • 20210507
  • Save

... pages left unread,continue reading

Document pages: 16 pages

Abstract: Spatial light modulators can typically only modulate the phase or theamplitude of an incident wavefront, with only a limited number of discretevalues available. This is often accounted for in computer-generated holographyalgorithms by setting hologram pixel values to the nearest achievable valueduring what is known as quantisation. Sympathetic quantisation is analternative to this nearest-neighbour approach that takes into account theunderlying diffraction relationships in order to obtain a significantlyimproved post-quantisation performance. The concept of sympathetic quantisationis introduced in this paper and a simple implementation, soft sympatheticquantisation, is presented which is shown to improve mean squared error andstructural similarity index error metrics by 50 for the considered case ofsingle-transform algorithms.

Please select stars to rate!


0 comments Sign in to leave a comment.

    Data loading, please wait...