This document provides a summary of the history and developments in 3D body scanning technologies. It discusses early developments like stereoscopes in the 1830s and photographic techniques to capture human form and motion. It then outlines the major technologies used in modern 3D body scanners like laser scanning, white light scanning, image processing, and millimeter wave radar. Applications discussed include fashion, medical, security, and more. The document concludes with examples of companies providing 3D body scanning solutions.