Fig. 8From: The Use of Advanced Optical Measurement Methods for the Mechanical Analysis of Shear Deficient Prestressed Concrete MembersPrecision assessment of the adopted 3D DIC system for the derived strain measurements for specimen B103: a standard deviation of the horizontal strain \(s_{\epsilon _{x}}\) as a function of the location on the specimen; b standard deviation of the vertical strain \(s_{\epsilon _{y}}\) as a function of the location on the specimen.Back to article page