3D reconstruction algorithm of asphalt concrete based on real microscopic scale
Jiqing Zhang · Journal of Central South University(Science and Technology) · 2012
X-ray CT was used to scan the asphalt specimen,the CT images were obtained and the real internal structure of concrete was captured.According to three dimensional(3D) reconstruction theory,the 3D reconstruction algorithm was investigated.The key reconstruction technique that is matching technique between pixel elements and nodes matching was developed.The preliminary numerical model was built up through reconstructing 3D spatial coordinates of elements and nodes matching.The pointer scanning was performed to extract the concrete elements from the whole elements.Meanwhile,aggregates,mastic and voids were segmented in accordance with their real spatial distributions.