arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.08782eess.IVcs.LGphysics.med-ph
收藏

深度学习提高低通量光声成像的对比度

Deep Learning Improves Contrast in Low-Fluence Photoacoustic Imaging

University of California, San Diego(加利福尼亚大学圣迭戈分校);Qualcomm Institute, University of California, San Diego(加利福尼亚大学圣迭戈分校高通研究所)

Ali Hariri, Kamran Alipour, Yash Mantri, Jurgen P. Schulze, Jesse V. Jokerst

摘要:

低通量照明源可以促进光声成像的临床过渡,因为它们坚固、便携、经济实惠且安全。然而,这些来源也降低图像质量,由于其低通量。在这里,我们提出了一种去噪方法,使用多级小波卷积神经网络映射低通量照明源图像到其相应的高通量激发图。定量和定性的结果表明,该方法在去除背景噪声和保持目标结构方面具有很大的潜力。分别观察到PSNR、SSIM和CNR指标的大幅改善高达2.20、2.25和4.3倍。我们还观察到增强的对比度(高达1.76倍),在体内应用,使用我们提出的方法。我们建议,这种工具可以提高光声成像中的这些源的价值。

英文摘要:

Low fluence illumination sources can facilitate clinical transition of photoacoustic imaging because they are rugged, portable, affordable, and safe. However, these sources also decrease image quality due to their low fluence. Here, we propose a denoising method using a multi-level wavelet-convolutional neural network to map low fluence illumination source images to its corresponding high fluence excitation map. Quantitative and qualitative results show a significant potential to remove the background noise and preserve the structures of target. Substantial improvements up to 2.20, 2.25, and 4.3-fold for PSNR, SSIM, and CNR metrics were observed, respectively. We also observed enhanced contrast (up to 1.76-fold) in an in vivo application using our proposed methods. We suggest that this tool can improve the value of such sources in photoacoustic imaging.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑