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how to create rendering_metadata.txt?

Open gopikrishnachaganti opened this issue 5 years ago • 11 comments

How to generate rendering_metadata.txt for the specific model for the training?

gopikrishnachaganti avatar May 09 '19 08:05 gopikrishnachaganti

+1

KnightOfTheMoonlight avatar May 16 '19 02:05 KnightOfTheMoonlight

Can anybody help on how to generate rendering_metadata?

gopikrishnachaganti avatar Jun 03 '19 03:06 gopikrishnachaganti

hi, I want to know the theory of converting cloud data into two-dimensional images.

xiayizhan2017 avatar Jun 14 '19 08:06 xiayizhan2017

I have tested in the 3D processing software.

Just render a model , and generate the specifice image. I use the camera params and camera model algorithmes to get the image point.

dclcs avatar Aug 19 '19 13:08 dclcs

Good to know that you have already made it, can you elaborate on the steps you did it if possible?

gopikrishnachaganti avatar Aug 26 '19 07:08 gopikrishnachaganti

I have tested in the 3D processing software.

Just render a model , and generate the specifice image. I use the camera params and camera model algorithmes to get the image point.

Same question here. Do you use blender and which kind of camera params are used here? Thanks!

YiruS avatar Nov 12 '19 03:11 YiruS

I think they use prior camera knowledge to set the camera parameters. From my understaning, they use azimuth (0-360), elevation around 30, tilt 0, camera distance to the zero of an object around 0.8m.

KnightOfTheMoonlight avatar Feb 09 '20 11:02 KnightOfTheMoonlight

Hi everyone. Since the dataset we use is also from the author of 3DR2N2, the original data was rendered using blender. The camera parameters for rendering are just like @KnightOfTheMoonlight said.

walsvid avatar Feb 25 '20 15:02 walsvid

I wrote a Master Thesis about 3D-Methods including Pixel2Mesh (in German). But my repository can be found here: https://github.com/markuspaschi/ShapeNetTools Go into DataSet_Tools/Renderer to find hints about how I used the blender renderer to create images. I changed some parameters (no guarantee that it is working better, but it may be a starting point for some people)

markuspaschi avatar Sep 04 '20 07:09 markuspaschi

@KnightOfTheMoonlight @walsvid In the rendering_metadata.txt there are 5 parameters. so, 1 - azimuth 2 - elevation 3 - tilt 4 - distance to the zero to the object 5 - ?

STASYA00 avatar Jun 17 '21 16:06 STASYA00

I think they use prior camera knowledge to set the camera parameters. From my understaning, they use azimuth (0-360), elevation around 30, tilt 0, camera distance to the zero of an object around 0.8m.

But the rendering_metadata.txt there are 5 parameters. What's the last parameter

Michaelwjh avatar Apr 17 '23 07:04 Michaelwjh