New method of melt pool edge detection based on mathematical morphology and active contour model

2021 ◽  
Author(s):  
Jun LING ◽  
Zhenying XU ◽  
Ziqian WU ◽  
Qiling LI ◽  
Mengyu TANG ◽  
...  
Keyword(s):  
Edge Detection ◽  
Mathematical Morphology ◽  
Active Contour ◽  
Active Contour Model ◽  
New Method ◽  
Melt Pool ◽  
Contour Model

scholarly journals Edge Enhancement Based Active Contour Model for Segmentation of Brain Tumor in MRI Images

2021 ◽  
Vol 19 (3) ◽  
Author(s):  
Mustafa Rashid Ismael
Keyword(s):  
Edge Detection ◽  
Active Contour ◽  
Active Contour Model ◽  
Initial Contour ◽  
Morphological Operations ◽  
Significant Information ◽  
Automated Method ◽  
Contour Model ◽  
Tumor Region ◽  
Edge Sharpening

Tumor segmentation is one of the most significant tasks in brain image analysis due to the significant information obtained by the tumor region. Therefore, many methods have been proposed during the last two decades for segmenting the tumor in MRI images. In this paper, an automated method is proposed using an active contour model with an initial contour creation using edge sharpening, thresholding, and morphological operations. Four methods of edge detection are utilized in the edge sharpening process (Sobel, Roberts, Prewitt, and Canny) and their performance was investigated in terms of Dice, Jaccard, and F1 score. The experiments were implemented on BRATS datasets with both HGG and LGG images. The study indicates that sharpening the edges using edge detection is essential to improve the segmentation of the tumor region especially when it is used with an active contour model. The achieved results show the effectiveness of the proposed method and it outperformed some recent existing methods.

A Novel Flame Edge Detection Algorithm via A Novel Active Contour Model

2016 ◽  
Vol 9 (9) ◽  
pp. 275-282 ◽  
Author(s):  
Wanli Feng ◽  
Ying Li ◽  
Shangbing Gao ◽  
Yunyang Yan ◽  
Jianxun Xue
Keyword(s):  
Edge Detection ◽  
Active Contour ◽  
Active Contour Model ◽  
Detection Algorithm ◽  
Edge Detection Algorithm ◽  
Contour Model
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