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On-the-fly automatic alignment and global registration of free-path collected 3D scans

We present a complete geometry processing pipeline for multiple 3D scans alignment, composed by a fast, automated feature-based coarse alignment and an efficient global registration, with the aim to enable high-quality and high-throughput cultural heritage digitization. Salient features of our pipeline consist in the capability to provide low-latency, on-the-fly coarse alignment regardless to the number of scans, the capacity to handle interruptions of a continuous acquisition path, as well as an improved implementation of a robust state-of-the-art global alignment technique.