🤖 AI Summary
This study addresses the lack of a unified 3D reconstruction framework in manufacturing, particularly under challenging conditions involving reflective surfaces and dynamic environments. Through a systematic review of 106 publications, the work proposes a structured classification framework tailored to manufacturing scenarios, organizing techniques into three stages: data acquisition, point cloud generation and post-processing, and application. It integrates non-contact methods—such as structured light and stereo vision—with deep learning–driven feature extraction strategies. The analysis reveals that 40% of applications focus on quality inspection, with existing approaches achieving sub-millimeter accuracy in controlled settings. The study identifies multi-sensor fusion and hybrid systems as critical future directions and highlights several research gaps and technical challenges that warrant further investigation.
📝 Abstract
This comprehensive review examines the evolution and the current state of the art in three-dimensional (3D) reconstruction techniques in manufacturing applications. The analysis covers both traditional approaches and emerging deep learning methods, showing a critical research gap in unified 3d reconstruction frameworks. Through systematic review of 106 recent publications, we classify reconstruction techniques into three primary categories: data acquisition, point cloud generation, post-processing and applications. Non-contact methods, particularly structured light scanning and stereo vision, have shown significant adoption in manufacturing, with 47% of surveyed applications focusing on quality inspection. The integration of deep learning has enhanced reconstruction accuracy and processing speed, particularly in feature extraction and matching. Key applications span design and development (13%), machining (8%), process (17%), assembly (22%), and quality inspection (40%). While current technologies achieve sub-millimeter accuracy in controlled environments, challenges persist in handling reflective surfaces and dynamic environments. Our findings indicate a trend toward hybrid systems combining multiple sensor types and processing methods to overcome individual limitations. This survey provides a structured framework for understanding current capabilities and future directions in manufacturing-focused 3D reconstruction.