3DUNDERWORLD-SLS vs Polyga PointKit

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.

Polyga PointKit is a toolset for processing, scanning, analyzing, and sharing 3D point-cloud and mesh data. PointKit Scan runs on Windows and prepares scan data by importing, aligning, cleaning, decimating, remeshing, inspecting, and exporting it. Alignment works on two or more selected meshes when their captured areas overlap sufficiently. After alignment, a finalization tool can combine scans into one mesh and apply additional processing. A lasso tool selects and deletes mesh sections. Supported capture sources include desktop and laser scanners, 3D cameras, photogrammetry, LiDAR, and other 3D devices. Exports include PLY, STL, OBJ, PBN, ASC, E57, LAS, and LAZ. PointKit Scan includes controls for connecting scanners and sharing data with PointKit View. The offering also lists a cross-platform web viewer, SDK, API access, mesh reconstruction, point-cloud tools, and real-time capture. PointKit is freemium, with a free plan and trial. Premium costs $99 a month for one active license and includes XTract3D 2 and PointKit.