Structure from Motion (SfM)

Structure from Motion (SfM) is a computer process that reconstructs a 3D model of a scene from multiple 2D photographs taken from different angles. It works by analyzing how points in the images shift relative to each other, allowing the software to determine the position of the camera for each shot and deduce the spatial layout of objects. Essentially, SfM turns a series of photographs into a detailed 3D map, combining information about camera movement and scene structure without needing special equipment, and is widely used in areas like mapping, archaeology, and virtual reality.