학술논문

High Dynamic Range Image Processing for Retinal Color Fundus Photography
Document Type
Academic Journal
Source
Ophthalmic Surgery, Lasers, and Imaging Retina. February, 2024, p1, 7 p.
Subject
Image processing -- Comparative analysis
Language
English
ISSN
2325-8160
Abstract
Background and Objective: Color fundus photography is an important imaging modality that is currently limited by a narrow dynamic range. We describe a post-image processing technique to generate high dynamic range (HDR) retinal images with enhanced detail. Patients and Methods: This was a retrospective, observational case series evaluating fundus photographs of patients with macular pathology. Photographs were acquired with three or more exposure values using a commercially available camera (Topcon 50-DX). Images were aligned and imported into HDR processing software (Photomatix Pro). Fundus detail was compared between HDR and raw photographs. Results: Sixteen eyes from 10 patients (5 male, 5 female; mean age 59.4 years) were analyzed. Clinician graders preferred the HDR image 91.7% of the time (44/48 image comparisons), with good grader agreement (81.3%, 13/16 eyes). Conclusions: HDR fundus imaging is feasible using images from existing fundus cameras and may be useful for enhanced visualization of retinal detail in a variety of pathologic states. [Ophthalmic Surg Lasers Imaging Retina 2024;55:XX–XX.]
Color fundus photography is an important imaging modality for identifying and documenting posterior segment disease and informing treatment decisions. However, despite recent advances in imaging technology, current commercially available fundus [...]