Visualization of distance maps relative to the reference model for our Asteroid-GS method and the SPG method on asteroid Itokawa (25143). Views observed from six directions (+x, -x, +y, -y, + z, -z) comprehensively highlight the differences. The histograms of the distance maps on the right illustrate the statistical distribution of distances. Compared to the SPG method, which exhibits a broader distribution with deviations up to nearly 10 meters, our proposed Asteroid-GS method achieves a more concentrated distribution within 5 meters.