tfg.rendering.camera.perspective.random_patches

Sample patches at different scales and from an image.

tfg.rendering.camera.perspective.random_patches(
    focal: tf.Tensor,
    principal_point: tf.Tensor,
    height: int,
    width: int,
    patch_height: int,
    patch_width: int,
    scale: float = 1.0,
    name: str = 'random_patches'
) -> Tuple[tf.Tensor, tf.Tensor]

focal A tensor of shape [A1, ..., An, 2]
principal_point A tensor of shape [A1, ..., An, 2]
height The height of the image plane in pixels.
width The width of the image plane in pixels.
patch_height The height M of the patch in pixels.
patch_width The width N of the patch in pixels.
scale The scale of the patch.
name A name for this op that defaults to "random_patches".

A tensor of shape [A1, ..., An, M*N, 3] where the last dimension is the ray directions in 3D passing from the M*N pixels of the patch and a tensor of shape [A1, ..., An, M*N, 2] with the pixel x, y locations.