Performs greedy decoding on the logits given in inputs.
tf.raw_ops.CTCGreedyDecoder(
inputs, sequence_length, merge_repeated=False, blank_index=-1, name=None
)
A note about the attribute merge_repeated: if enabled, when consecutive logits' maximum indices are the same, only the first of these is emitted. Labeling the blank '*', the sequence "A B B * B B" becomes "A B B" if merge_repeated = True and "A B B B B" if merge_repeated = False.
Regardless of the value of merge_repeated, if the maximum index of a given
time and batch corresponds to the blank, index (num_classes - 1)
, no new
element is emitted.
Args | |
---|---|
inputs
|
A Tensor . Must be one of the following types: float32 , float64 .
3-D, shape: (max_time x batch_size x num_classes) , the logits.
|
sequence_length
|
A Tensor of type int32 .
A vector containing sequence lengths, size (batch_size) .
|
merge_repeated
|
An optional bool . Defaults to False .
If True, merge repeated classes in output.
|
blank_index
|
An optional int . Defaults to -1 .
|
name
|
A name for the operation (optional). |
Returns | |
---|---|
A tuple of Tensor objects (decoded_indices, decoded_values, decoded_shape, log_probability).
|
|
decoded_indices
|
A Tensor of type int64 .
|
decoded_values
|
A Tensor of type int64 .
|
decoded_shape
|
A Tensor of type int64 .
|
log_probability
|
A Tensor . Has the same type as inputs .
|