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Project ADAM is the name I give to my Honours Project as it is more catchy than "3D Scanner-Printer Hybrid for the creation of prosthetic limbs", but that's what this is. The physical model is under construction but the scanning code is still needing a lot of work done.

Imagine, if you will, a box with sides FRONT, BACK, LEFT and RIGHT. If lasers on sides FRONT and BACK project a laser line through the centre of the box a stump can be stuck down into the box, interrupting the laser line and creating a silhouette of laser light around the stump. If then, the lasers move along the FRONT and BACK sides of the box and there is a camera in the LEFT and RIGHT these silhouettes can be captured for different distances along the LEFT-RIGHT axis.

By then using OpenCV to extract the laser line from each image we can turn it into an array of X, Y points and append a Z value that's derived from the distance along the axis (which can be read from the image name where "1img34" refers to "camera 1 image 34"). These different layers are then appended to create an array of points (a Point Cloud) and the points can then be put through a simple tessellation to create a 3D STL.

This STL is then used by a prosthetics technician to develop a well-fitting prosthesis and the design is printed on the same machine.