Depth-gated Fourier transform to accelerate spectral recovery in visible light optical coherence tomography retinal oximetry.

• Tác giả: Stephanie L Nolen, Jingyu Wang, Ji Yi
• Ngôn ngữ: eng
• Ký hiệu phân loại: 133.9013 Spiritualism
• Thông tin xuất bản: United States : Optics letters , 2025
• Bộ sưu tập: NCBI
• ID: 89186

Tóm tắt

Visible light optical coherence tomography (VIS-OCT) provides retinal oximetry at micro-level vessels by performing spatiospectral analysis. Typical methodology involves the short-time Fourier transform (STFT), which requires computationally intensive repetitive transforms. Here we report a depth-gated Fourier transform (DGFT) method to reduce the number of transforms (and time) for spectral extraction by windowing the depth domain. The number of transforms was decreased from 13 to 3 by DGFT, nearly 6× faster in computation time than STFT. We validated DGFT for retinal oximetry in a human eye. Oxygen saturation (sO