画像解析によるポリ塩化ビニル樹脂系防水シートの伸び保持率の推定

抄録

The authors propose a method to estimate the retention of stretch of polyvinyl chloride resin waterproofing sheet using image analysis techniques. The retention of stretch is regarded as the index of deterioration of a waterproofing sheet. Firstly, we originally developed a microscope for taking digital images of the surface of water proofing sheets that can capture the crack clearly. Then various kinds of existing image attributes are adopted to characterize the crack. These features are used as explanatory variables of multiple linear regressions to estimate the retention of the stretch. Estimation models were created and validated through cross validation tests. Finally, we succeeded in creating the estimation model that exhibits about 0.96 in determination coefficient.