The document provides an overview of techniques for generating 3D models from images, including assisted modeling using tools like SketchUp, photogrammetry using tools like ImageModeler and PhotoModeler, and multi-view stereo matching using tools like the Photosynth Toolkit, SfM Toolkit, Python Photogrammetry Toolbox, and Autodesk 123Dcatch. It discusses the underlying principles, calibration processes, dense matching techniques, and final model creation steps involved. The document recommends several free and commercial software tools and provides additional online resources for learning more about these 3D reconstruction methods.