Sznitman Raphael, Rother Diego, Handa Jim, Gehlbach Peter, Hager Gregory D, Taylor Russell
Johns Hopkins University, USA.
Med Image Comput Comput Assist Interv. 2010;13(Pt 3):465-72. doi: 10.1007/978-3-642-15711-0_58.
It has been shown that excessive white light exposure during retinal microsurgery can induce retinal damage. To address this problem, one can illuminate the retina with a device that alternates between white, and less damaging limited-spectrum light. The surgeon is then presented with a fully colored video by recoloring the limited-spectrum light frames, using information from the white-light frames. To obtain accurately colored images, while reducing phototoxicity, we have developed a novel algorithm that monitors the quality of the recolored images and determines when white light may be substituted by limited-spectrum light. We show qualitatively and quantitatively that our system can provide reliable images using a significantly smaller light dose as compared to other state-of-the-art coloring schemes.
研究表明，视网膜显微手术期间过度暴露于白光会导致视网膜损伤。为了解决这个问题，可以使用一种在白光和损伤较小的窄谱光之间交替的设备照亮视网膜。然后，通过利用来自白光帧的信息对窄谱光帧进行重新着色，为外科医生呈现全彩色视频。为了在降低光毒性的同时获得精确着色的图像，我们开发了一种新颖的算法，该算法可监测重新着色图像的质量，并确定何时可用窄谱光替代白光。我们定性和定量地表明，与其他现有技术的着色方案相比，我们的系统可以使用显著更小的光剂量提供可靠的图像。
