bad result on the bicycle scene?

[zhouilu]

Thanks for your great work! I got good result in garden scene, but bad result on bicycle. I tried density and sdf regularization_type, it doesn't work. What is the cause of this?

Hope to get your reply!

[nehilsood]

Hey @zhouilu please share all the commands you ran to get these outputs for both i.e. bicycle and garden

[zhouilu]

Hey @zhouilu please share all the commands you ran to get these outputs for both i.e. bicycle and garden

garden:

python gaussian_splatting/train.py -s ./garden --iterations 7000 -r 4 
python train.py -s ./garden -c output/13bf126b-0/ -r sdf

bicycle:

python gaussian_splatting/train.py -s ./bicycle --iterations 7000 -r 4 
python train.py -s ./bicycle -c output/e5ba5335-c/ -r sdf

[Anttwo]

Hi @zhouilu ,

Thanks for your kind words! Here is my result for bicycle (opened in Blender): The mesh should be quite good, except for the spokes of the bicycle (but as shown in the paper, the hybrid representation fixes this problem and has good-looking spokes; The hybrid representation helps to capture details badly reconstructed in the mesh).

Have you tried to zoom in? it looks like the bicycle is in the center of your scene, but the viewpoint is very far. Actually, in the bicycle scene, you'll notice many white background elements far from the center of the scene; It is quite understandable because the code uses a black background color by default, so the Gaussians/mesh try to reconstruct the entire white sky. I think using a white background would be a better idea. I should add that to the code!

[zhouilu]

Hi @zhouilu ,

Thanks for your kind words! Here is my result for bicycle (opened in Blender): The mesh should be quite good, except for the spokes of the bicycle (but as shown in the paper, the hybrid representation fixes this problem and has good-looking spokes; The hybrid representation helps to capture details badly reconstructed in the mesh).

Have you tried to zoom in? it looks like the bicycle is in the center of your scene, but the viewpoint is very far. Actually, in the bicycle scene, you'll notice many white background elements far from the center of the scene; It is quite understandable because the code uses a black background color by default, so the Gaussians/mesh try to reconstruct the entire white sky. I think using a white background would be a better idea. I should add that to the code!

Thanks Reply！ bicycle is in the center of scene. I tried change the bg_color to 1.0 in sugar_model.py, it seems useless. Do you have any other suggestions? Thanks

[zhouilu]

i remove bg mesh, and got a better mesh

[DYH200009]

i remove bg mesh, and got a better mesh

how to remove bg mesh? Skip the bgmesh coputing code ?