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Automation of Defect Detection in Digital Radiographic Images
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 142 - Number 6 |
| Year of Publication: 2016 |
| Authors: Kimani Njogu, David Maina, Elijah Mwangi |
10.5120/ijca2016909807
|
Kimani Njogu, David Maina, Elijah Mwangi . Automation of Defect Detection in Digital Radiographic Images. International Journal of Computer Applications. 142, 6 ( May 2016), 1-7. DOI=10.5120/ijca2016909807
Abstract
Conventionally, it is well-known that diagnosis of defects in an object depends on experience, capability and concentration of the operator. But this process is error prone and liable to subjective considerations such as fatigue, boredom and lapses in operator concentration. This reduces the reliability and consistency of the process thus precluding the undertaking of preventive maintenance with confidence. Also, the process is time consuming and expensive. In this paper, a new automatic defect detection algorithm has been developed in order to identify defects in digital radiographic images. Percolation and Otsu’s thresholding and segmentation algorithms have been used and a new procedure for displaying defects on a screen has been developed. Computer simulation based experiments have been used to demonstrate the effectiveness of the proposed algorithm. The performance of the proposed algorithm is found to be better than the existing defect detection algorithms as the results obtained are impressive with respect to the defect detection rate.
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