3DUNDERWORLD-SLS vs Artec Studio

3DUNDERWORLD-SLS is a free Linux project that reconstructs point clouds from camera image sequences illuminated by patterned light. Its structured-light process has CPU and GPU implementations, and the command-line program can save reconstructed models as PLY or OBJ files. Version 4.x requires two or more cameras and provides a generic camera interface that programmers can extend. Camera acquisition is not implemented, so users must supply a camera class through the provided interfaces. The project accepts camera image folders, calibration files, and a patterned-light projector as inputs. It does not provide real-time capture or mesh reconstruction. Libraries are included for integration into other projects, with CPU and GPU examples, and an API was included in OpenCV 3.1 for a stereo approach using time-multiplexing Gray encoding. The repository supplies demo binaries, example data, and CMake build instructions. Dependencies are OpenCV 2, CUDA 6.0 or later, and glm. CUDA detection enables CPU and GPU constructors; without CUDA, only the CPU constructor is generated.

Artec Studio has no write-up on Specifiction yet; its figures are above.