角膜又は結膜における点状染色状態の評価方法
- 专利权人:
- 国立大学法人山口大学
- 发明人:
- 西田 輝夫,近間 泰一郎,山田 直之,井上 祐司,菅波 秀規,野島 俊秋,古池 真実,古元 健二
- 申请号：
- JP2009216490
- 公开号：
- JP5487498B2
- 申请日:
- 2009.09.18
- 申请国别(地区):
- JP
- 年份:
- 2014
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a method for accurately evaluating the dotty stain conditions in cornea or conjunctiva as objective values without variation after its vital staining.
SOLUTION: Based on the photograph of stained cornea or conjunctiva and a sample of several dotty stain density levels of regional dotty stain areas, illustrations are prepared to show the density distribution of dotty stains over the regional areas divided by drawing lines in each circle for preparing the illustration. The illustrations obtained are taken in a computer to measure the respective number of pixels per region with varied dotty stain density levels in the illustration, and the total number of pixels within the circle for preparing the illustration. After multiplying the pixel number per region with varied dotty stain density levels by a weighting coefficient set up for each density level, all the regional weighted pixel numbers are totaled to obtain the total weighted pixels of the entire stained regional areas. The pixel number of the entire regional stained areas is divided by the total pixel number within the circle for preparing the illustration, and the resulting value is used to evaluate all the dotty stain areas of the entire cornea or conjunctiva examined.
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- 来源网站：
- 中国工程科技知识中心
