Compute the third input: disparity including occluded region

[chaimaOues]

I know that I ask a lot of questions I am a beginner and you have helped me a lot

I tested the code "inference_example.ipynb" it works well with the three images in sample_data/KITTI_2015/training : image2, image 3 and disp_occ_0, I want to test with other images. how to calculate the 3rd imput disp_occ_0 (disparity including occluded region) between the two images please.

Thank you