arXiv:2411.09798cs.CVcs.LG2024-11被引 1

针对荧光手术视频噪声难题,提出可模拟激光泄漏的深度学习去噪方法。

Video Denoising in Fluorescence Guided Surgery

  • 构建包含激光泄漏光的精准噪声模拟流程
  • 利用共位参考视频估计并抑制强偏置噪声
  • 设计三类实时性好的深度学习去噪基线模型

荧光引导手术(FGS)是一种能帮助外科医生区分组织类型和病灶区域的先进技术。随着新型荧光造影剂发光光子数减少,实现实时高质量视频成为关键挑战。此外,激光泄漏光(LLL)会引入显著偏置噪声,其强度可达荧光信号量级,传统零均值噪声假设与非因果处理方法在此场景下失效。本研究利用同步采集的共位参考视频,模拟并估计LLL,提出一套包含LLL的精确噪声建模流程,并设计三种基于深度学习的视频去噪基线算法,适用于真实环境下的实时处理需求。

原文摘要 · Abstract (English)

Fluorescence guided surgery (FGS) is a promising surgical technique that gives surgeons a unique view of tissue that is used to guide their practice by delineating tissue types and diseased areas. As new fluorescent contrast agents are developed that have low fluorescent photon yields, it becomes increasingly important to develop computational models to allow FGS systems to maintain good video quality in real time environments. To further complicate this task, FGS has a difficult bias noise term from laser leakage light (LLL) that represents unfiltered excitation light that can be on the order of the fluorescent signal. Most conventional video denoising methods focus on zero mean noise, and non-causal processing, both of which are violated in FGS. Luckily in FGS, often a co-located reference video is also captured which we use to simulate the LLL and assist in the denoising processes. In this work, we propose an accurate noise simulation pipeline that includes LLL and propose three baseline deep learning based algorithms for FGS video denoising.

视频去噪荧光手术深度学习噪声建模

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