Title :
Design of optimal camera apertures adapted to display devices over arbitrary sampling lattices
Author :
Aly, Hussein A. ; Dubois, Eric
Author_Institution :
Sch. of Inf. Technol. & Eng., Ottawa Univ., Ont., Canada
fDate :
4/1/2004 12:00:00 AM
Abstract :
We show how to design an optimal camera aperture for a given display aperture defined on an arbitrary spatial or spatio-temporal sampling lattice. This is achieved by determining the reciprocal Riesz basis for the vector space of displayed images. The result can be used to specify ideal virtual cameras for a number of applications such as regularized image up-sampling. A case study for displaying a hexagonally sampled image on a cathode ray tube is presented.
Keywords :
cameras; display devices; image sampling; multidimensional signal processing; arbitrary sampling lattices; display devices; hexagonally sampled image; multidimensional signal processing; optimal camera apertures; reciprocal Riesz basis; regularized image up-sampling; spatial sampling lattice; spatio-temporal sampling lattice; vector space; virtual cameras; Apertures; Cameras; Cathode ray tubes; Displays; Image sampling; Large scale integration; Lattices; Nonlinear filters; Sampling methods; Signal sampling;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2004.824062
