講演情報
[10a-N104-1]Imaging-formulation-based numerical speckle reduction for optical coherence tomography
〇Xibo Wang1, Shuichi Makita1, Suzuyo Komeda1, Nobuhisa Tateno1, Cunyou Bao1, Atsuko Furukawa2, Satoshi Matsusaka2, Makoto Kobayashi3, Yoshiaki Yasuno1 (1.COG Univ. Tsukuba, 2.I.C.M Univ. Tsukuba, 3.I.M Univ. Tsukuba)
キーワード：
OCT、Speckle reduction
Optical coherence tomography (OCT) inherently suffers from speckle due to its coherent nature. This granular pattern obscures structural and degrades resolution. To address this, we propose a numerical speckle reduction method for full-field swept-source OCT (FF-SS-OCT), based on a novel imaging formulation introduced by Tomita et al. In this framework, an OCT image is mathematically decomposed into an “incoherent image” and “speckle.” Leveraging this model, we numerically generate multiple complex OCT images with modulated speckle and reduce it through averaging. This process effectively suppresses speckle without compromising resolution. We validate the method using FF-SS-OCT data.