Title
Finer Cornea Characterization With Improved Spatial Resolution In Corvis St
Abstract
High-frame-rate imaging technique, such as Corneal Visualization Scheimpug Technology, plays an important role in evaluating corneal properties. Many studies measure various biomechanical parameters and associate them to different corneal pathological conditions. However, the vertical resolution of the acquired images is limited mainly due to optical distortions and acquisition errors, which in some scenarios (where sufficient vertical resolution is critical) mislead the interpretation and clinical diagnosis of corneal pathological conditions therefore it become critical to establish an efficient way to improve the vertical resolution in Scheimpflug photography. In this work, we propose an effective computational method to retrieve the image details in high-frame-rate imaging, providing both high temporal and vertical resolution. Experiments and a utility assessment including image data from totally 120 subjects on the measurement of central corneal thickness demonstrate a previously-not-recognized pattern of corneal deformation in air puff tests, as well as the statistically significant difference revealed (p < 0.01) between normal and keratoconus subject groups from the super-resolved time series. The proposed approach is preliminarily proven to be a useful tool for a finer characterization of the cornea.
Year
DOI
Venue
2021
10.1016/j.bspc.2020.102297
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
Keywords
DocType
Volume
Cornea, Ophthalmology, High-frame-rate imaging, Image resolution
Journal
65
ISSN
Citations 
PageRank 
1746-8094
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Yongjin Zhou101.35
Zhengji Liu201.01
Lei Tian37612.93
Menglin Guo400.34
Jin Li583.38