This lecture overviews Introduction to 3D imaging that has many applications in medical imaging, scientific imaging, microscopy and computer vision. It covers the following topics in detail: Volumetric images, 3D points clouds, 3D surfaces, Medical image acquisition, 3D Image and Video Quality, 3D Data Processing, 3D Image and Shape Compression, 3D Video Coding And Broadcasting, 3D Image and Video Analysis, Image/volume registration, Image Rendering and View Synthesis, 3D Video Content Description, 3D Display Technologies.