3D Reconstruction Classic Method vs Deep Learning

I am a beginner, and my Graduation Project focuses on utilizing Deep Learning (DL) in 3D Reconstruction. I've been trying to understand the task and have read multiple survey papers on 3D Reconstruction. While I've learned that Machine Learning (ML) is often used by replacing parts or modules, such as depth and pose estimation, I haven't come across direct comparisons between pure classical methods and DL approaches. In fact, one paper even mentioned that many researchers consider classical geometric approaches …

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