Author

Junlei Song

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Open access Aug 2026

Ultrasonic Point Cloud-Based Segmentation and Quantification of Internal Defects in Concrete Structures

Accurate detection of internal defects in concrete structures is critical to structural safety. This study proposes a three-stage method for segmentation and geometric quantification of defects from 3D ultrasonic point clouds to support non-destructive testing (NDT). Sparse point clouds are densified by grid-based, aco...

Yi Zhou, Junlei Song, Cheng-Gang Zhou et al. · Buildings · 0 citations

Open access Sep 2026

Enhanced Lightweight Image Super-Resolution via Residual Aggregation and Wavelet Loss

Image super-resolution (SR), which aims to reconstruct a high-resolution image from a low-resolution input, has progressed from convolutional neural networks (CNNs) to transformer-based architectures. Despite this progress, lightweight transformer SR remains challenging: local or window-based operations provide limited...

Jia-Hui Nan, Wen-Kai Wang, Feng Zhang et al. · Electronics · 0 citations