Super-resolution technique of microzooming in electrooptical imaging systems.
- Resource Type
- Article
- Authors
- Zhang, Haitao; Gong, Mali; Zhao, Dazun; Yan, Ping; Cui, Ruizhen; Jia, Weipu
- Source
- Journal of Modern Optics. 12/15/2001, Vol. 48 Issue 15, p2161-2167. 7p.
- Subject
- *ELECTROOPTICS
*IMAGING systems
*OPTICAL resolution
- Language
- ISSN
- 0950-0340
The main resolution limit for an electro-optical imaging system comprising a focal plane array (FPA) sensor obeys Nyquist theorem which states that an object must be sampled at more than twice the cut-off frequency to avoid aliasing. A novel super-resolution technique, microzooming (MZ), is presented. MZ provides electro-optical imagery with an extended unaliased bandwidth using multiple aliased images at different optical magnifications. A number of simulation and experiment results demonstrate that MZ is a practical advance for reducing aliasing and enhancing resolution as well as helping to suppress white noise. [ABSTRACT FROM AUTHOR]