tf.keras.backend.ctc_label_dense_to_sparse

Converts CTC labels from dense to sparse.

Aliases:

  • tf.compat.v1.keras.backend.ctc_label_dense_to_sparse
  • tf.compat.v2.keras.backend.ctc_label_dense_to_sparse
  • tf.keras.backend.ctc_label_dense_to_sparse
tf.keras.backend.ctc_label_dense_to_sparse(
    labels,
    label_lengths
)

Defined in python/keras/backend.py.

Arguments:

  • labels: dense CTC labels.
  • label_lengths: length of the labels.

Returns:

A sparse tensor representation of the labels.