What is the scm-to-cereal program?

[ming81]

desc.add_options()
        ("help,h",
            "display the help message")
        ("model,m", po::value<fs::path>(&scmmodelfile)->required(),
            "a CVSSP .scm Morphable Model file")
        ("isomap,t", po::value<fs::path>(&isomapfile),
            "optional isomap containing the texture mapping coordinates")
        ("shape-only,s", po::value<bool>(&save_shape_only)->default_value(false)->implicit_value(true),
            "save only the shape-model part of the full 3DMM")
        ("output,o", po::value<fs::path>(&outputfile)->required()->default_value("converted_model.bin"),
            "output filename for the Morphable Model in cereal binary format")
        ;

(.scm file , isomap file) I am not found!!

[patrikhuber]

Hi @ming81,

There is no need to run scm-to-cereal. It's just for converting from our internal model format to the public eos cereal format. The model is under eos/share/sfm_shape_3448.bin and you can use that directly with the fit-model executable.

[ming81]

Because I want to modify the model, so I want to know how to generate the sfm_shape_3448.bin file!! When the next version release it?

[patrikhuber]

The eos library is for fitting the model, not for creating one. It does not contain code to create a new 3DMM. This is not a trivial task, you need 3D scans, and dense 3D-3D registration. That's why it comes with pre-trained 3DMMs, and it’s also easy to use it with your own (if you already have one or create it elsewhere), by writing your own load function that returns an instance of class MorphableModel. Just fyi, our model contains Chinese faces too.

[ming81]

scm-to-cereal program is can generate the sfm_shape_3448.bin file? But where is source file(CVSSP .scm Morphable Model file)? I don't find it in your project?

[patrikhuber]

No, as I said it doesn't create the .bin file, it converts our internal .scm file to the open cereal .bin file. The content is the same: A mean, eigenvalues, basis vectors, as you would expect from a PCA model, and some metadata.

[ming81]

thks