Improving color reconstruction

[marip8]

Per the Open3d documentation: "TSDF volume works like a weighted average filter in 3D space", which usually results in fairly blurred colors on the mesh. It would be really beneficial if we could sharpen the colors of the mesh.

I think there are a few ways we could do potentially do this:

• Sharpening filter
  • No additional requirements, but performance is not great
• Color map optimization
  • Requires save/buffer of RGB images
• Project individual images onto the mesh for colorization
  • Requires save/buffer of RGB images
  • Requires selection of individual images for projection
  • (Should) require blending of colors at boundaries of images

Any additional ideas on how to tackle this or thoughts on the proposed approaches?