Pytorch implement of 2d points interpolation (Perform same as griddata in scipy)
I just modify some of scipy.spatial code

Please first compile the Cython code. Use:

cd spatial
python setup.py build_ext --inplace

Then see interp2d.py code.

This Repo is not stable, I haven't test the function of code. Cause the core code is clone from scipy, the code should work.
If there is any bugs, please let me know.

The algorithm is just same as scipy do. The problem is to interpolate 2D scatter points to a continuous image.
First, divide the image to multiple triangles. Then, perform linear interpolation inside the triangles. Use pytorch to compute the linear interpolation process, the back propagation should be autoly performed.

Scipy https://github.com/scipy/scipy
qhull http://www.qhull.org/