Abstract
A previous study used GPR to scan logs and find internal defects nondestructively. The GPR data was processed and analysed using RADAN software, which needs an expert and is time consuming. Also, the output from RADAN cannot be used to generate manufacturing process instructions required for optimal sawing of logs in saw mills since the output is in the form of an image. For online implementation of GPR scanning in saw mills, a quick automated defect detection system with numerical output for defect coordinates is required for which a MATLAB based algorithm has been developed and presented in this paper.
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