Method for detecting the relatived istortion rate of medical endoscope image based on ellipse fitting algorithm

doi:10.13741/j.cnki.11-1879/o4.2019.03.018

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Method for detecting the relatived istortion rate of medical endoscope image based on ellipse fitting algorithm

更新时间：2025-09-01

- Method for detecting the relatived istortion rate of medical endoscope image based on ellipse fitting algorithm
- Vol. 45, Issue 3, Pages: 364-367(2019)
- 作者机构：
  
  1:上海市计量测试技术研究院
- 作者简介：
- 基金信息：
- DOI：10.13741/j.cnki.11-1879/o4.2019.03.018
  CLC：
- Published：2019
- 稿件说明：
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Method for detecting the relatived istortion rate of medical endoscope image based on ellipse fitting algorithm[J]. 2019, 45(3): 364-367.
DOI：

Method for detecting the relatived istortion rate of medical endoscope image based on ellipse fitting algorithm[J]. 2019, 45(3): 364-367. DOI： 10.13741/j.cnki.11-1879/o4.2019.03.018.

摘要

为快速有效评价临床使用内窥镜图像相对畸变的程度

提出一种基于椭圆拟合的检测方法。对内窥镜采集到的标准板图像进行二值化处理和图像分割;运用anny算子对图像进行边缘检测并提取坐标值

通过最小二乘法拟合椭圆

求得椭圆参数;计算相对畸变率。对3支内窥镜进行了椭圆拟合和定位质心相对畸变率检测

结果显示相对畸变率在30%左右

一致性差在2%左右

椭圆拟合相较而言稳定性更好。

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