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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 6 — Feb. 20, 2006
  • pp: 1203–1214

Small-kernel superresolution methods for microscanning imaging systems

Jiazheng Shi, Stephen E. Reichenbach, and James D. Howe  »View Author Affiliations


Applied Optics, Vol. 45, Issue 6, pp. 1203-1214 (2006)
http://dx.doi.org/10.1364/AO.45.001203


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Abstract

Two computationally efficient methods for superresolution reconstruction and restoration of microscanning imaging systems are presented. Microscanning creates multiple low-resolution images with slightly different sample–scene phase shifts. The digital processing methods developed here combine the low-resolution images to produce an image with higher pixel resolution (i.e., superresolution) and higher fidelity. The methods implement reconstruction to increase resolution and restoration to improve fidelity in one-pass convolution with a small kernel. One method uses a small-kernel Wiener filter and the other method uses a parametric cubic convolution filter. Both methods are based on an end-to-end, continuous–discrete–continuous microscanning imaging system model. Because the filters are constrained to small spatial kernels they can be efficiently applied by convolution and are amenable to adaptive processing and to parallel processing. Experimental results with simulated imaging and with real microscanned images indicate that the small-kernel methods efficiently and effectively increase resolution and fidelity.

© 2006 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.3020) Image processing : Image reconstruction-restoration

ToC Category:
Image Processing

History
Original Manuscript: June 10, 2005
Revised Manuscript: August 24, 2005
Manuscript Accepted: August 25, 2005

Citation
Jiazheng Shi, Stephen E. Reichenbach, and James D. Howe, "Small-kernel superresolution methods for microscanning imaging systems," Appl. Opt. 45, 1203-1214 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-6-1203


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