CoMapGS: Covisibility Map-based Gaussian Splatting for Sparse Novel View Synthesis

Figure 1 . Main idea. Conventional sparse view synthesis methods using 3DGS [38] prioritize frequently captured regions, shown as the brightest areas in the covisibility map, resulting in better reconstruction in these regions but missing details in sparsely captured areas. By using a covisibility map, we guide sparse 3DGS methods to focus on underrepresented regions, enhancing sparse novel view synthesis.