30 January 2012 Intensity-based modified Doppler variance algorithm dedicated for phase instable optical coherence tomography systems
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Abstract
Traditional phase-resolve Doppler method demonstrates great success for in-vivo imaging of blood flow and blood vessel. However, the phase-resolved methods always require high phase stability of the system. During phase instable situations, the performance of the phase-resolved methods will be degraded. We propose a modified Doppler variance algorithm that is based on the intensity or amplitude value. Performances of the proposed algorithm are compared with traditional phase-resolved Doppler variance and color Doppler methods for two phase instability systems. The proposed algorithm demonstrates good performances without phase instability induced artifacts.
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Gangjun Liu, Wangcun Jia, Danny Chou, Wenjuan Qi, Bernard Choi, Zhongping Chen, "Intensity-based modified Doppler variance algorithm dedicated for phase instable optical coherence tomography systems", Proc. SPIE 8213, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI, 821315 (30 January 2012); doi: 10.1117/12.907151; https://doi.org/10.1117/12.907151
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