Design of optimal camera apertures adapted to display devices over arbitrary sampling lattices

被引:1
作者
Aly, HA [1 ]
Dubois, E
机构
[1] Univ Ottawa, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada
[2] Univ Ottawa, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada
关键词
camera aperture; display aperture; minimum error sampling; multidimensional signal processing; Riesz basis;
D O I
10.1109/LSP.2004.824062
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:443 / 445
页数:3
相关论文
共 8 条
[1]  
ALY H, 2003, P IEEE INT C AC SPEE, V3, P101
[2]  
[Anonymous], 1997, A Wavelet Tour of Signal Processing
[4]  
ISNARDI MA, 1986, 515 MIT RES LAB EL
[5]  
MERTINS A, 1999, SIGNAL ANALYSIS
[6]   A GENERAL SAMPLING THEORY FOR NONIDEAL ACQUISITION DEVICES [J].
UNSER, M ;
ALDROUBI, A .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (11) :2915-2925
[7]   Sampling - 50 years after Shannon [J].
Unser, M .
PROCEEDINGS OF THE IEEE, 2000, 88 (04) :569-587
[8]   Least-squares spline resampling to a hexagonal lattice [J].
Van De Ville, D ;
Philips, W ;
Lemahieu, I .
SIGNAL PROCESSING-IMAGE COMMUNICATION, 2002, 17 (05) :393-408