High-resolution texture maps are necessary for representing real-world
objects accurately with 3D meshes. The large sizes of textures can bottleneck
the real-time rendering of high-quality virtual 3D scenes on devices having low
computational budgets and limited memory. Downsampling the texture maps
directly addresses the issue, albeit at the cost of visual fidelity.
Traditionally, downsampling of texture maps is performed using methods like
bicubic interpolation and the Lanczos algorithm. These methods ignore the
geometric layout of the mesh and its UV parametrization and also do not account
for the rendering process used to obtain the final visualization that the users
will experience. Towards filling these gaps, we introduce GeoScaler, which is a
method of downsampling texture maps of 3D meshes while incorporating geometric
cues, and by maximizing the visual fidelity of the rendered views of the
textured meshes. We show that the textures generated by GeoScaler deliver
significantly better quality rendered images compared to those generated by
traditional downsampling methods

通过在降采样过程中引入几何线索并最大化呈现纹理网格的视觉保真度，我们介绍了 GeoScaler 方法，该方法用于降低 3D 网格的纹理地图，并且相比传统的降采样方法，所生成的纹理图像呈现出显著更好的质量。