文章摘要
窦燕*,王丽盼**,张启飞***.融合异质刺激过滤的金相图像等轴α相识别[J].高技术通讯(中文),2021,31(8):807~815
融合异质刺激过滤的金相图像等轴α相识别
Metallographic equiaxed α-phase recognition fused with heterogeneous stimulation filtering
  
DOI:10.3772/j.issn.1002-0470.2021.08.003
中文关键词: 金相图像识别; 异质刺激; 数学形态学; 标记分水岭算法
英文关键词: metallographic image recognition, heterogeneous stimulation, mathematical morphology, marking watershed algorithm
基金项目:
作者单位
窦燕*  
王丽盼**  
张启飞***  
摘要点击次数: 154
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中文摘要:
      针对钛合金金相图像存在噪声、晶界α相和片层组织与等轴α相颜色极为相似而导致“误识别”的问题,提出了一种融合异质刺激过滤的金相图像中等轴α相识别算法。该算法主要包含两大部分:(1)结合数学形态学和异质刺激理论设计实现了异质刺激模板,对晶界α相和片层组织进行了有效的过滤;(2)提出了一种结合距离变换和数学形态学的前景和背景标记方法,对等轴α相和其他组织进行了精确的标记,利用标记分水岭算法对金相等轴α相进行识别。实验结果表明,该算法过滤了金相图像中大部分的晶界α相和片层组织,并最大程度地降低了对等轴α相边缘区域的影响。与大津算法、最大熵算法、模糊C均值聚类算法对等轴α相的识别效果相比,本文算法提高了等轴α相的识别准确率。
英文摘要:
      Aiming at the problem of ‘misidentification’ caused by the existence of noise in the metallographic image of titanium alloy and the fact that some of the grain boundary of α-phase and the lamellar tissue are very similar to the equiaxial α-phase in color, an novel equiaxed α-phase recognition algorithm fused with heterogeneous stimulation filtering is proposed. The algorithm mainly consists of two parts: (1) Combining with mathematical morphology and heterogeneous stimulus theory, the heterogeneous stimulus template is designed and realized to filter the grain boundary of α-phase and lamellar structure effectively; (2) A foreground and background marking method combined with distance transformation and mathematical morphology is proposed, and the equiaxial α-phase and other microstructure are accurately marked, and the metallographic equiaxial α-phase is identified by marking watershed algorithm. The experimental results show that the proposed algorithm can filter most of the grain boundary of α-phase and the lamellar structure and the influence of the edge region of the equiaxial α-phase is reduced to the greatest extent. Compared with Otsu algorithm, maximum entropy algorithm and fuzzy C-means clustering algorithm, the proposed algorithm in this paper improves the recognition accuracy of equiaxial α-phase.
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