Multi-frame speckle reduction in OCT using supercontinuum pumped by noise-like pulses
Abstract
In most coherent imaging modality, speckle noise is a major cause that blurs the boundary of tissues and degrades the image contrast. By utilizing the unique properties of supercontinuum (SC) generated by noise-like pulses (NLPs) and a simple multi-frame averaging technique, we achieved significant speckle reduction in spectral domain optical coherence tomography (SD-OCT). We quantitatively compared the speckle of our proposed method with those of conventional swept source OCT (SS-OCT) and SD-OCT based on commercial light sources. The experimental results show that SC pumped by NLPs combined with noncoherent averaging method achieves better denoising performance in terms of contrast to noise ratio (CNR).
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2019
- Source ID
- 10.1142/s1793545819500093
Entities
People
- Bihua Tang
- Chengming Wang
- Ci-Ling Pan
- Juicheng Hsieh
- Ning Zhang
- Ping Xue
- Shengnan Ai
- Wenchao Liao
- Wenxin Zhang
- Xiao Zhang
- Yi-jing You
Organizations
- Air Force Office of Scientific Research
- Beijing Institute of Technology
- National Natural Science Foundation of China
- National Science and Technology Council
- National Tsing Hua University
- Southwest Medical University
- Tsinghua University