cameras.txt
                        calib.txt
                    scene2
                        im1.png
                        im0.png
                        images.txt
                        cameras.txt
                        calib.txt
                    ...
                two_view_training_gt
                    scene1
                        disp0GT.pfm
                        mask0nocc.png
                    scene2
                        disp0GT.pfm
                        mask0nocc.png
                    ...
                two_view_testing
                    scene1
                        im1.png
                        im0.png
                        images.txt
                        cameras.txt
                        calib.txt
                    scene2
                        im1.png
                        im0.png
                        images.txt
                        cameras.txt
                        calib.txt
                    ...

    Args:
        root (string): Root directory of the ETH3D Dataset.
        split (string, optional): The dataset split of scenes, either "train" (default) or "test".
        transforms (callable, optional): A function/transform that takes in a sample and returns a transformed version.
    Tre