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How to get better result? #8

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mln-wave opened this issue Oct 8, 2022 · 2 comments
Open

How to get better result? #8

mln-wave opened this issue Oct 8, 2022 · 2 comments

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@mln-wave
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mln-wave commented Oct 8, 2022

Hi,
Thanks for the wonderful repo, which generates 3D models for real-life photos in the wild !!
I tried applying it for images of a doll. Gave 8 images as input covering different angles, in colab notebook. But results aren't good. (PFA).
What can be done to improve the results?

ners_ouput.mp4

image

@jasonyzhang
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jasonyzhang commented Oct 8, 2022

Hi,

This is a very challenging sequence. Here's what I might try to get better results:

  • spend time getting the camera poses as accurate as possible
  • remove the images for which the camera poses are bad. Images 3, 5, 6, and 9 have cameras that are pretty far off. This makes sense since the template shape is pretty far off from the shape of this doll, so the stage 1 camera pose optimization is probably hurting your performance. The other camera poses look reasonable.
  • After stage 2 when the shape is initially optimized, update the camera poses for bad cameras manually (eg camera 5 should have its elevation adjusted). Then, re-do stage 1.
  • Try a better shape initialization. Perhaps a flattened cone shape would be a better initialization that a rectangular prism. You could try using a cone mesh as the initialization, although I might also flatten it a bit in x or y dimension.

@ming-ming15
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Hi,
Thanks for the wonderful repo!!
How do I try using a cone mesh as initialization during testing? Are there any parameters that need to be modified?

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