Building inspection stops at pixels: pulling Gaussian centers onto real surfaces cuts height error to 0.33%
Three-dimensional Gaussian reconstruction for building inspection no longer aims only at photorealistic views: with region and point-wise depth supervision, Gaussian centers are pulled toward physical surfaces, cutting depth error by 58.1% and 86.8% on synthetic UAV and smartphone-captured data, with a mean relative height-measurement error of 0.33%.