From the course: Reality Capture Foundations for AEC

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2D to 3D photo reconstruction: Overview

2D to 3D photo reconstruction: Overview

From the course: Reality Capture Foundations for AEC

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2D to 3D photo reconstruction: Overview

- Our brains interpret 3D data constantly through stereoscopic vision. Think of it this way, having two eyes perceiving an image from two slightly different vantage points produces that 3D image for you to interpret. So ever since photography became a means to capture reality, people have endeavored to find ways to view photos in 3D, even from the 19th century. As technology has advanced, we've created ways to view data in 3D using multiple overlapping photos, and this has led to the development of modern day 3D photogrammetry in which photos from different vantage points are used to find matching pixels to calculate the camera's position, or pose, from projected ray points to construct a depth map, or 3D pixel, based on the change in perspective. These 3D pixels continue to build in quantity the more overlapping images you have, and with a sufficient number of 3D pixels, referred to as a point cloud or ray cloud, a 3D model can…

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