Add lit conformer model

1 files changed, 10 insertions, 0 deletions

diff --git a/text_recognizer/models/util.py b/text_recognizer/models/util.py
new file mode 100644
index 0000000..cc0df3c
--- /dev/null
+++ b/text_recognizer/models/util.py
@@ -0,0 +1,10 @@
+from typing import Union
+
+from torch import Tensor
+
+
+def first_element(x: Tensor, element: Union[int, float], dim: int = 1) -> Tensor:
+    nonz = x == element
+    ind = ((nonz.cumsum(dim) == 1) & nonz).max(dim).indices
+    ind[ind == 0] = x.shape[dim]
+    return ind