V2EX inlier ratio

Inlier Ratio

释义 Definition

inlier ratio内点比例/内点率。指在一组数据点中,被某个模型判定为“内点”(与模型一致、误差在阈值内)的点所占的比例。常用于鲁棒估计计算机视觉(如 RANSAC)中衡量数据与模型的匹配程度。(也可在更一般的数据分析语境中使用。)

发音 Pronunciation (IPA)

/nlar reio/

例句 Examples

The inlier ratio is high, so the model fits the data well.
内点比例很高,所以这个模型对数据的拟合效果很好。

Even with heavy noise, RANSAC can still find a good solution if the inlier ratio is above a certain level.
即使噪声很大,只要内点比例高于某个水平,RANSAC 仍然可能找到较好的解。

词源 Etymology

inlier 是仿照 outlier(离群点) 构成的词:由 in-(在内) + 类似“人/物”的后缀形式组合而来,用来表示“在群体/模型之内的点”。ratio(比例) 来自拉丁语 ratio,有“计算、比例、关系”的意思。因此 inlier ratio 字面即“内点的比例”。

相关词 Related Words

文学/著作中的用例 Notable Works

  • Random Sample Consensus: A Paradigm for Model Fitting with Applications to Image Analysis and Automated Cartography(Fischler & Bolles, 1981):RANSAC 的经典论文语境中常涉及用“内点比例”判断模型是否可靠。
  • Multiple View Geometry in Computer Vision(Hartley & Zisserman):多视几何与匹配/估计章节常用内点/外点与其比例来讨论鲁棒估计效果。
  • Computer Vision: Algorithms and Applications(Richard Szeliski):讲特征匹配、模型拟合与鲁棒方法时会用到内点率/内点比例的概念。
  • Robust Statistics(Huber & Ronchetti):鲁棒统计的讨论背景中与“内点/外点”划分及其比例密切相关。
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