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Grading corneal fluorescein staining
专利权人:
发明人:
Reza Dana,Francisco L. Amparo Pulido,Haobing Wang
申请号:
US15308184
公开号:
US10004395B2
申请日:
2015.05.01
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The technology described in this document can be embodied in systems and computer-implemented methods for determining a score representing an amount of staining of the cornea. The methods include obtaining a digital image of the cornea stained with a tracer material, receiving a selection of a portion of the image, and processing, by a processing device, the selection to exclude areas with one or more artifacts to define an evaluation area. For each of a plurality of pixels within the evaluation area, a plurality of Cartesian color components are determined and a hue value in a polar coordinate based color space is calculated from the components. An amount of staining of the cornea is then determined as a function of the hue value. The methods also include assigning a score to the evaluation area based on the amount of staining calculated for the plurality of pixels.
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