Reconstrura

Reconstrura is a desktop application that takes a video or a folder of photos and returns a gaussian splat, running every stage on the machine in front of you. Frame extraction, masking, camera solving, training and export sit in one five stage interface, so the usual arrangement of a structure from motion tool feeding a separate trainer over the command line collapses into a single window. It is the work of one developer, Lukas Elias Rehfus, in Berlin.

The camera stage is a genuine structure from motion solve rather than a wrapper around a hosted service. Reconstrura matches ALIKED features with LightGlue, runs bundle adjustment on the GPU, and carves free space for consistency, writing a standard COLMAP sparse model alongside the splat. A published example solves 125 of 125 cameras with 108,212 points at 1.18 pixel reprojection error in two minutes. Equirectangular 360 footage is accepted and converted into a virtual camera rig, and version 0.9.4 added HEIC and HEIF input.

Masking runs before training and is per instance, using EdgeTAM or SAM 2.1 to isolate people, sky or background. Toggling an instance recombines masks that already exist rather than re-segmenting, so the change is immediate. The vendor's own example excludes a passer by from 14 of 125 frames, which is 2 percent of the pixels.

Output is a single ply at splat/point_cloud.ply, which Reconstrura describes as ready for SuperSplat, Postshot or Brush. There is no SPZ, SOG, splat or ksplat export, and no stated ply flavour or spherical harmonic degree, so format compatibility is asserted by naming three consumers rather than by specification. The COLMAP model lands in sparse/0/, and a command line flag exports an undistorted dataset with transforms.json. A published run on an RTX 4090 reached 344,182 Gaussians at 32.91 dB PSNR in 13 minutes 35 seconds of training, holding 2.25 GB of peak VRAM.

Licensing carries one trap worth knowing before the trial starts. A splat created during the free trial can never be used commercially, and buying a licence afterwards does not retroactively clear it. The end user licence agreement requires the splat to be recreated from the source material while a purchased licence is active. Reconstrura claims no rights over outputs and requires no attribution. What the vendor does not state is what the new CPU only mode actually covers, since the system requirements table still says an NVIDIA GPU is required.