Resolution enhancement with improved range Doppler algorithm in high numerical aperture OCT
Chinese Optics Letters, Vol. 9, Issue 12, pp. 121001- (2011)
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Abstract
The improved range Doppler algorithm is proposed to abate the trade-off between resolutions and depth of focus in spectral domain optical coherence tomography. By considering the finite beam width and the shape of the wavefronts produced by the Gaussian beam, a physical diffraction model is presented to simulate the light propagation process in the sample. The two-dimensional processing of the spectrum data is decomposed into two one-dimensional processings of Stolt transform and matched filter. Experimental results show that image reconstruction can be achieved. The transverse and axial resolutions are both improved significantly, especially in the out-of-focus range, and the resolutions are almost equivalent throughout the entire region of interest.
© 2011 Chinese Optics Letters
OCIS Codes
(100.2000) Image processing : Digital image processing
(100.2980) Image processing : Image enhancement
(100.3010) Image processing : Image reconstruction techniques
ToC Category:
Image Processing
Citation
Xiaodong Chen, Yong Lei, Yi Wang, and Daoyin Yu, "Resolution enhancement with improved range Doppler algorithm in high numerical
aperture OCT," Chin. Opt. Lett. 9, 121001- (2011)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-9-12-121001
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