1 files changed, 18 insertions, 0 deletions
diff --git a/text_recognizer/network/transformer/embedding/token.py b/text_recognizer/network/transformer/embedding/token.py
new file mode 100644
index 0000000..1df2fd6
--- /dev/null
+++ b/text_recognizer/network/transformer/embedding/token.py
@@ -0,0 +1,18 @@
+from torch import nn, Tensor
+
+from text_recognizer.network.transformer.embedding.l2_norm import l2_norm
+
+
+class TokenEmbedding(nn.Module):
+    def __init__(self, num_tokens: int, dim: int, use_l2: bool = True) -> None:
+        super().__init__()
+        self.use_l2 = use_l2
+        self.to_embedding = nn.Embedding(num_tokens, dim)
+        if self.use_l2:
+            nn.init.normal_(self.to_embedding.weight, std=1e-5)
+        else:
+            nn.init.kaiming_normal_(self.to_embedding.weight)
+
+    def forward(self, x: Tensor) -> Tensor:
+        embedding = self.to_embedding(x)
+        return l2_norm(embedding) if self.use_l2 else embedding