Evaluation of spectrometric parameters in spectral-domain optical coherence tomography.
The parameters of the spectrometer were analyzed in order to optimize the performance of spectral-domain optical coherence tomography (SD-OCT). Because probing depth is proportional to spectral resolution, it can be increased with the choice of a higher resolution spectrometer, which implies greater pixel numbers and lower imaging speed, or by sacrificing part of the spectrum, which compromises the axial resolution and side lobes. With a dynamic range of 8 bits or more, the signal-to-noise ratio remains constant for different noise levels. The results were verified experimentally with in vivo retinal SD-OCT imaging.
Department of Biomedical Engineering, College of Engineering, Peking University, No. 5 Yiheyuan Road, Beijing 100871, China. xipeng@coe.pku.edu.cn
Peng
P
Xi
Kai
K
Mei
Tobias
T
Bräuler
Chuanqing
C
Zhou
Qiushi
Q
Ren
D003198:Computer Simulation; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D012160:Retina / Q000648:ultrastructure*; D013057:Spectrum Analysis; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*