espnet.utils.spec_augment.interpolate_bilinear

source

espnet.utils.spec_augment.interpolate_bilinear(grid, query_points, name='interpolate_bilinear', indexing='ij')

Similar to Matlab’s interp2 function.

Notes

Finds values for query points on a grid using bilinear interpolation.

• Parameters:
  • grid – a 4-D float Tensor of shape [batch, height, width, channels].
  • query_points – a 3-D float Tensor of N points with shape [batch, N, 2].
  • name – a name for the operation (optional).
  • indexing – whether the query points are specified as row and column (ij), or Cartesian coordinates (xy).
• Returns: a 3-D Tensor with shape [batch, N, channels]
• Return type: values
• Raises:
  • ValueError – if the indexing mode is invalid, or if the shape of the inputs
  • invalid. –