Papers by Samadrita Chakraborty
In this paper, a Computer Aided Defect Detection (CADD) application is developed to ai a human op... more In this paper, a Computer Aided Defect Detection (CADD) application is developed to ai a human operator interpret radiographs of weld joints . Conventional radiography interpretation is highly dependent on operator skill and hence prone to human errors. This algorithm is developed to automate defect recognition in radiographed images. This application consists of several image processing al gorithms like Contrast Limited Adaptive Histogram Equalization, Sauvola thresholding, Canny edge operations an d Boundary Tracing Algorithms for defect segmentation and characterization. Geometric features of s gmented regions are used t o classify a region into a particular type of defect. A CPU based approach is used for defect identification. The application has been tested on Aluminium TIG welded specimens with well d efine defects. This application provides successful detection rate of 88% for porosities, 100% for Tungsten Inclusions and 100% probability in detecting cracks and undercuts. Th...
Uploads
Papers by Samadrita Chakraborty