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Face recognition bug fixes (#17401)

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* Simplify normalization

* Fix confidence check
This commit is contained in:
Nicolas Mowen 2025-03-26 18:43:10 -06:00 committed by GitHub
parent a37f804469
commit ff34739f40
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2 changed files with 3 additions and 4 deletions
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4
frigate/data_processing/common/face/model.py
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@ -10,7 +10,7 @@ from scipy import stats
from frigate.config import FrigateConfig
from frigate.const import MODEL_CACHE_DIR
from frigate.embeddings.onnx.facenet import ArcfaceEmbedding
from frigate.embeddings.onnx.face_embedding import ArcfaceEmbedding
logger = logging.getLogger(__name__)
@ -329,7 +329,7 @@ class ArcFaceRecognizer(FaceRecognizer):
cosine_similarity = dot_product / (magnitude_A * magnitude_B)
confidence = self.similarity_to_confidence(cosine_similarity)
if cosine_similarity > score:
if confidence > score:
score = confidence
label = name

3
frigate/embeddings/onnx/facenet.py → frigate/embeddings/onnx/face_embedding.py
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@ -90,8 +90,7 @@ class ArcfaceEmbedding(BaseEmbedding):
frame[y_center : y_center + og_h, x_center : x_center + og_w] = og
# run arcface normalization
normalized_image = frame.astype(np.float32) / 255.0
frame = (normalized_image - 0.5) / 0.5
frame = (frame / 127.5) - 1.0
frame = np.transpose(frame, (2, 0, 1))
frame = np.expand_dims(frame, axis=0)