docker/tensorrt/Dockerfile.base

@@ -20,21 +20,8 @@ RUN --mount=type=bind,source=docker/tensorrt/detector/tensorrt_libyolo.sh,target
 # COPY required individual CUDA deps
 RUN mkdir -p /usr/local/cuda-deps
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
-      cp /usr/local/cuda-12.3/targets/x86_64-linux/lib/libcurand.so.* /usr/local/cuda-deps/ && \
-      cp /usr/local/cuda-12.3/targets/x86_64-linux/lib/libnvrtc.so.* /usr/local/cuda-deps/ && \
-      cd /usr/local/cuda-deps/ && \
-      for lib in libnvrtc.so.*; do \
-        if [[ "$lib" =~ libnvrtc.so\.([0-9]+\.[0-9]+\.[0-9]+) ]]; then \
-          version="${BASH_REMATCH[1]}"; \
-          ln -sf "libnvrtc.so.$version" libnvrtc.so; \
-        fi; \
-      done && \
-      for lib in libcurand.so.*; do \
-        if [[ "$lib" =~ libcurand.so\.([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+) ]]; then \
-          version="${BASH_REMATCH[1]}"; \
-          ln -sf "libcurand.so.$version" libcurand.so; \
-        fi; \
-      done; \
+      cp /usr/local/cuda-12.3/targets/x86_64-linux/lib/libcurand.s* /usr/local/cuda-deps/ && \
+      cp /usr/local/cuda-12.3/targets/x86_64-linux/lib/libnvrtc.s* /usr/local/cuda-deps/ ; \
     fi
 
 # Frigate w/ TensorRT Support as separate image

docker/tensorrt/detector/rootfs/etc/ld.so.conf.d/cuda_tensorrt.conf

@@ -1,7 +1,8 @@
 /usr/local/lib
 /usr/local/cuda
-/usr/local/lib/python3.11/dist-packages/tensorrt
 /usr/local/lib/python3.11/dist-packages/nvidia/cudnn/lib
 /usr/local/lib/python3.11/dist-packages/nvidia/cuda_runtime/lib
 /usr/local/lib/python3.11/dist-packages/nvidia/cublas/lib
+/usr/local/lib/python3.11/dist-packages/nvidia/cuda_nvrtc/lib
+/usr/local/lib/python3.11/dist-packages/tensorrt
 /usr/local/lib/python3.11/dist-packages/nvidia/cufft/lib

docs/docs/configuration/face_recognition.md

@@ -23,15 +23,15 @@ Frigate needs to first detect a `face` before it can recognize a face.
 
 Frigate has support for two face recognition model types:
 
-- **small**: Frigate will run a FaceNet embedding model to recognize faces, which runs locally on the CPU. This model is optimized for efficiency and is not as accurate.
-- **large**: Frigate will run a large ArcFace embedding model that is optimized for accuracy. It is only recommended to be run when an integrated or dedicated GPU is available.
+- **small**: Frigate will use CV2 Local Binary Pattern Face Recognizer to recognize faces, which runs locally on the CPU. This model is optimized for efficiency and is not as accurate.
+- **large**: Frigate will run a face embedding model, this model is optimized for accuracy. It is only recommended to be run when an integrated or dedicated GPU is available.
 
 In both cases a lightweight face landmark detection model is also used to align faces before running the recognition model.
 
 ## Minimum System Requirements
 
-The `small` model is optimized for efficiency and runs on the CPU, most CPUs should run the model efficiently.
-The `large` model is optimized for accuracy, an integrated or discrete GPU is highly recommended.
+The `small` model is optimized for efficiency and runs on the CPU, there are no significantly different system requirements.
+The `large` model is optimized for accuracy and an integrated or discrete GPU is highly recommended.
 
 ## Configuration
 

docs/docs/configuration/license_plate_recognition.md

@@ -40,14 +40,14 @@ lpr:
   enabled: True
 ```
 
-Like other enrichments in Frigate, LPR **must be enabled globally** to use the feature. You can disable it for specific cameras at the camera level:
+You can also enable it for specific cameras only at the camera level:
 
 ```yaml
 cameras:
   driveway:
     ...
     lpr:
-      enabled: False
+      enabled: True
 ```
 
 For non-dedicated LPR cameras, ensure that your camera is configured to detect objects of type `car`, and that a car is actually being detected by Frigate. Otherwise, LPR will not run.
@@ -195,16 +195,12 @@ When using `type: "lpr"` for a camera, a non-standard object detection pipeline
 
 Ensure that:
 
-- Your camera has a clear, human-readable, well-lit view of the plate. If you can't read the plate's characters, Frigate certainly won't be able to, even if the model is recognizing a `license_plate`. This may require changing video size, quality, or frame rate settings on your camera, depending on your scene and how fast the vehicles are traveling.
+- Your camera has a clear, human-readable, well-lit view of the plate. If you can't read the plate, Frigate certainly won't be able to. This may require changing video size, quality, or frame rate settings on your camera, depending on your scene and how fast the vehicles are traveling.
 - The plate is large enough in the image (try adjusting `min_area`) or increasing the resolution of your camera's stream.
 
 If you are using a Frigate+ model or a custom model that detects license plates, ensure that `license_plate` is added to your list of objects to track.
 If you are using the free model that ships with Frigate, you should _not_ add `license_plate` to the list of objects to track.
 
-Recognized plates will show as object labels in the debug view and will appear in the "Recognized License Plates" select box in the More Filters popout in Explore.
-
-If you are still having issues detecting plates, start with a basic configuration and see the debugging tips below.
-
 ### Can I run LPR without detecting `car` objects?
 
 In normal LPR mode, Frigate requires a `car` to be detected first before recognizing a license plate. If you have a dedicated LPR camera, you can change the camera `type` to `"lpr"` to use the Dedicated LPR Camera algorithm. This comes with important caveats, though. See the [Dedicated LPR Cameras](#dedicated-lpr-cameras) section above.
@@ -226,18 +222,10 @@ Use `match_distance` to allow small character mismatches. Alternatively, define
 ### How do I debug LPR issues?
 
 - View MQTT messages for `frigate/events` to verify detected plates.
+- Adjust `detection_threshold` and `recognition_threshold` settings.
 - If you are using a Frigate+ model or a model that detects license plates, watch the debug view (Settings --> Debug) to ensure that `license_plate` is being detected with a `car`.
-- Watch the debug view to see plates recognized in real-time. For non-dedicated LPR cameras, the `car` label will change to the recognized plate when LPR is enabled and working.
-- Adjust `detection_threshold` and `recognition_threshold` settings per the suggestions [above](#advanced-configuration).
 - Enable debug logs for LPR by adding `frigate.data_processing.common.license_plate: debug` to your `logger` configuration. These logs are _very_ verbose, so only enable this when necessary.
 
-  ```yaml
-  logger:
-    default: info
-    logs:
-      frigate.data_processing.common.license_plate: debug
-  ```
-
 ### Will LPR slow down my system?
 
 LPR runs on the CPU, so performance impact depends on your hardware. Ensure you have at least 4GB RAM and a capable CPU for optimal results. If you are running the Dedicated LPR Camera mode, resource usage will be higher compared to users who run a model that natively detects license plates. Tune your motion detection settings for your dedicated LPR camera so that the license plate detection model runs only when necessary.

frigate/config/config.py

@@ -292,30 +292,13 @@ def verify_autotrack_zones(camera_config: CameraConfig) -> ValueError | None:
 
 
 def verify_motion_and_detect(camera_config: CameraConfig) -> ValueError | None:
-    """Verify that motion detection is not disabled and object detection is enabled."""
+    """Verify that required_zones are specified when autotracking is enabled."""
     if camera_config.detect.enabled and not camera_config.motion.enabled:
         raise ValueError(
             f"Camera {camera_config.name} has motion detection disabled and object detection enabled but object detection requires motion detection."
         )
 
 
-def verify_lpr_and_face(
-    frigate_config: FrigateConfig, camera_config: CameraConfig
-) -> ValueError | None:
-    """Verify that lpr and face are enabled at the global level if enabled at the camera level."""
-    if camera_config.lpr.enabled and not frigate_config.lpr.enabled:
-        raise ValueError(
-            f"Camera {camera_config.name} has lpr enabled but lpr is disabled at the global level of the config. You must enable lpr at the global level."
-        )
-    if (
-        camera_config.face_recognition.enabled
-        and not frigate_config.face_recognition.enabled
-    ):
-        raise ValueError(
-            f"Camera {camera_config.name} has face_recognition enabled but face_recognition is disabled at the global level of the config. You must enable face_recognition at the global level."
-        )
-
-
 class FrigateConfig(FrigateBaseModel):
     version: Optional[str] = Field(default=None, title="Current config version.")
 
@@ -624,7 +607,6 @@ class FrigateConfig(FrigateBaseModel):
             verify_required_zones_exist(camera_config)
             verify_autotrack_zones(camera_config)
             verify_motion_and_detect(camera_config)
-            verify_lpr_and_face(self, camera_config)
 
         self.objects.parse_all_objects(self.cameras)
         self.model.create_colormap(sorted(self.objects.all_objects))

frigate/data_processing/common/face/model.py

@@ -10,7 +10,7 @@ from scipy import stats
 
 from frigate.config import FrigateConfig
 from frigate.const import MODEL_CACHE_DIR
-from frigate.embeddings.onnx.face_embedding import ArcfaceEmbedding, FaceNetEmbedding
+from frigate.embeddings.onnx.face_embedding import ArcfaceEmbedding
 
 logger = logging.getLogger(__name__)
 
@@ -124,140 +124,83 @@ class FaceRecognizer(ABC):
             return 1.0
 
 
-def similarity_to_confidence(
-    cosine_similarity: float, median=0.3, range_width=0.6, slope_factor=12
-):
-    """
-    Default sigmoid function to map cosine similarity to confidence.
-
-    Args:
-        cosine_similarity (float): The input cosine similarity.
-        median (float): Assumed median of cosine similarity distribution.
-        range_width (float): Assumed range of cosine similarity distribution (90th percentile - 10th percentile).
-        slope_factor (float): Adjusts the steepness of the curve.
-
-    Returns:
-        float: The confidence score.
-    """
-
-    # Calculate slope and bias
-    slope = slope_factor / range_width
-    bias = median
-
-    # Calculate confidence
-    confidence = 1 / (1 + np.exp(-slope * (cosine_similarity - bias)))
-    return confidence
-
-
-class FaceNetRecognizer(FaceRecognizer):
+class LBPHRecognizer(FaceRecognizer):
     def __init__(self, config: FrigateConfig):
         super().__init__(config)
-        self.mean_embs: dict[int, np.ndarray] = {}
-        self.face_embedder: FaceNetEmbedding = FaceNetEmbedding()
-        self.model_builder_queue: queue.Queue | None = None
+        self.label_map: dict[int, str] = {}
+        self.recognizer: cv2.face.LBPHFaceRecognizer | None = None
 
     def clear(self) -> None:
-        self.mean_embs = {}
-
-    def run_build_task(self) -> None:
-        self.model_builder_queue = queue.Queue()
-
-        def build_model():
-            face_embeddings_map: dict[str, list[np.ndarray]] = {}
-            idx = 0
-
-            dir = "/media/frigate/clips/faces"
-            for name in os.listdir(dir):
-                if name == "train":
-                    continue
-
-                face_folder = os.path.join(dir, name)
-
-                if not os.path.isdir(face_folder):
-                    continue
-
-                face_embeddings_map[name] = []
-                for image in os.listdir(face_folder):
-                    img = cv2.imread(os.path.join(face_folder, image))
-
-                    if img is None:
-                        continue
-
-                    img = self.align_face(img, img.shape[1], img.shape[0])
-                    emb = self.face_embedder([img])[0].squeeze()
-                    face_embeddings_map[name].append(emb)
-
-                idx += 1
-
-            self.model_builder_queue.put(face_embeddings_map)
-
-        thread = threading.Thread(target=build_model, daemon=True)
-        thread.start()
+        self.face_recognizer = None
+        self.label_map = {}
 
     def build(self):
         if not self.landmark_detector:
             self.init_landmark_detector()
             return None
 
-        if self.model_builder_queue is not None:
-            try:
-                face_embeddings_map: dict[str, list[np.ndarray]] = (
-                    self.model_builder_queue.get(timeout=0.1)
-                )
-                self.model_builder_queue = None
-            except queue.Empty:
-                return
-        else:
-            self.run_build_task()
+        labels = []
+        faces = []
+        idx = 0
+
+        dir = "/media/frigate/clips/faces"
+        for name in os.listdir(dir):
+            if name == "train":
+                continue
+
+            face_folder = os.path.join(dir, name)
+
+            if not os.path.isdir(face_folder):
+                continue
+
+            self.label_map[idx] = name
+            for image in os.listdir(face_folder):
+                img = cv2.imread(os.path.join(face_folder, image))
+
+                if img is None:
+                    continue
+
+                img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+                img = self.align_face(img, img.shape[1], img.shape[0])
+                faces.append(img)
+                labels.append(idx)
+
+            idx += 1
+
+        if not faces:
             return
 
-        if not face_embeddings_map:
-            return
+        self.recognizer: cv2.face.LBPHFaceRecognizer = (
+            cv2.face.LBPHFaceRecognizer_create(radius=2, threshold=400)
+        )
+        self.recognizer.train(faces, np.array(labels))
 
-        for name, embs in face_embeddings_map.items():
-            if embs:
-                self.mean_embs[name] = stats.trim_mean(embs, 0.15)
-
-        logger.debug("Finished building ArcFace model")
-
-    def classify(self, face_image):
+    def classify(self, face_image: np.ndarray) -> tuple[str, float] | None:
         if not self.landmark_detector:
             return None
 
-        if not self.mean_embs:
+        if not self.label_map or not self.recognizer:
             self.build()
 
-            if not self.mean_embs:
+            if not self.recognizer:
                 return None
 
         # face recognition is best run on grayscale images
+        img = cv2.cvtColor(face_image, cv2.COLOR_BGR2GRAY)
 
         # get blur factor before aligning face
-        blur_factor = self.get_blur_factor(face_image)
-        logger.debug(f"face detected with blurriness {blur_factor}")
+        blur_factor = self.get_blur_factor(img)
+        logger.debug(f"face detected with bluriness {blur_factor}")
 
         # align face and run recognition
-        img = self.align_face(face_image, face_image.shape[1], face_image.shape[0])
-        embedding = self.face_embedder([img])[0].squeeze()
+        img = self.align_face(img, img.shape[1], img.shape[0])
+        index, distance = self.recognizer.predict(img)
 
-        score = 0
-        label = ""
+        if index == -1:
+            return None
 
-        for name, mean_emb in self.mean_embs.items():
-            dot_product = np.dot(embedding, mean_emb)
-            magnitude_A = np.linalg.norm(embedding)
-            magnitude_B = np.linalg.norm(mean_emb)
-
-            cosine_similarity = dot_product / (magnitude_A * magnitude_B)
-            confidence = similarity_to_confidence(
-                cosine_similarity, median=0.5, range_width=0.6
-            )
-
-            if confidence > score:
-                score = confidence
-                label = name
-
-        return label, round(score * blur_factor, 2)
+        score = (1.0 - (distance / 1000)) * blur_factor
+        return self.label_map[index], round(score, 2)
 
 
 class ArcFaceRecognizer(FaceRecognizer):
@@ -331,6 +274,30 @@ class ArcFaceRecognizer(FaceRecognizer):
 
         logger.debug("Finished building ArcFace model")
 
+    def similarity_to_confidence(
+        self, cosine_similarity: float, median=0.3, range_width=0.6, slope_factor=12
+    ):
+        """
+        Default sigmoid function to map cosine similarity to confidence.
+
+        Args:
+            cosine_similarity (float): The input cosine similarity.
+            median (float): Assumed median of cosine similarity distribution.
+            range_width (float): Assumed range of cosine similarity distribution (90th percentile - 10th percentile).
+            slope_factor (float): Adjusts the steepness of the curve.
+
+        Returns:
+            float: The confidence score.
+        """
+
+        # Calculate slope and bias
+        slope = slope_factor / range_width
+        bias = median
+
+        # Calculate confidence
+        confidence = 1 / (1 + np.exp(-slope * (cosine_similarity - bias)))
+        return confidence
+
     def classify(self, face_image):
         if not self.landmark_detector:
             return None
@@ -345,7 +312,7 @@ class ArcFaceRecognizer(FaceRecognizer):
 
         # get blur factor before aligning face
         blur_factor = self.get_blur_factor(face_image)
-        logger.debug(f"face detected with blurriness {blur_factor}")
+        logger.debug(f"face detected with bluriness {blur_factor}")
 
         # align face and run recognition
         img = self.align_face(face_image, face_image.shape[1], face_image.shape[0])
@@ -360,7 +327,7 @@ class ArcFaceRecognizer(FaceRecognizer):
             magnitude_B = np.linalg.norm(mean_emb)
 
             cosine_similarity = dot_product / (magnitude_A * magnitude_B)
-            confidence = similarity_to_confidence(cosine_similarity)
+            confidence = self.similarity_to_confidence(cosine_similarity)
 
             if confidence > score:
                 score = confidence

frigate/data_processing/common/license_plate/mixin.py

@@ -634,13 +634,37 @@ class LicensePlateProcessingMixin:
         else:
             gray = image
 
+        # detect noise with Laplacian variance
+        laplacian = cv2.Laplacian(gray, cv2.CV_64F)
+        noise_variance = np.var(laplacian)
+        brightness = cv2.mean(gray)[0]
+        noise_threshold = 70
+        brightness_threshold = 150
+        is_noisy = (
+            noise_variance > noise_threshold and brightness < brightness_threshold
+        )
+
+        # apply bilateral filter and sharpening only if noisy
+        if is_noisy:
+            logger.debug(
+                f"Noise detected (variance: {noise_variance:.1f}, brightness: {brightness:.1f}) - denoising"
+            )
+            smoothed = cv2.bilateralFilter(gray, d=15, sigmaColor=100, sigmaSpace=100)
+            sharpening_kernel = np.array([[-1, -1, -1], [-1, 9, -1], [-1, -1, -1]])
+            processed = cv2.filter2D(smoothed, -1, sharpening_kernel)
+        else:
+            logger.debug(
+                f"No noise detected (variance: {noise_variance:.1f}, brightness: {brightness:.1f}) - skipping denoising and sharpening"
+            )
+            processed = gray
+
         # apply CLAHE for contrast enhancement
         grid_size = (
             max(4, input_w // 40),
             max(4, input_h // 40),
         )
         clahe = cv2.createCLAHE(clipLimit=1.5, tileGridSize=grid_size)
-        enhanced = clahe.apply(gray)
+        enhanced = clahe.apply(processed)
 
         # Convert back to 3-channel for model compatibility
         image = cv2.cvtColor(enhanced, cv2.COLOR_GRAY2RGB)
@@ -790,9 +814,7 @@ class LicensePlateProcessingMixin:
                 ]
             ).clip(0, [input.shape[1], input.shape[0]] * 2)
 
-            logger.debug(
-                f"Found license plate. Bounding box: {expanded_box.astype(int)}"
-            )
+            logger.debug(f"Found license plate: {expanded_box.astype(int)}")
             return tuple(expanded_box.astype(int))
         else:
             return None  # No detection above the threshold

frigate/data_processing/real_time/face.py

@@ -21,8 +21,8 @@ from frigate.config import FrigateConfig
 from frigate.const import FACE_DIR, MODEL_CACHE_DIR
 from frigate.data_processing.common.face.model import (
     ArcFaceRecognizer,
-    FaceNetRecognizer,
     FaceRecognizer,
+    LBPHRecognizer,
 )
 from frigate.util.image import area
 
@@ -78,7 +78,7 @@ class FaceRealTimeProcessor(RealTimeProcessorApi):
         self.label_map: dict[int, str] = {}
 
         if self.face_config.model_size == "small":
-            self.recognizer = FaceNetRecognizer(self.config)
+            self.recognizer = LBPHRecognizer(self.config)
         else:
             self.recognizer = ArcFaceRecognizer(self.config)
 
@@ -390,6 +390,11 @@ class FaceRealTimeProcessor(RealTimeProcessorApi):
             self.person_face_history.pop(object_id)
 
     def weighted_average_by_area(self, results_list: list[tuple[str, float, int]]):
+        min_faces = 1 if self.requires_face_detection else 3
+
+        if len(results_list) < min_faces:
+            return "unknown", 0.0
+
         score_count = {}
         weighted_scores = {}
         total_face_areas = {}
@@ -407,6 +412,10 @@ class FaceRealTimeProcessor(RealTimeProcessorApi):
 
         prominent_name = max(score_count)
 
+        # if a single name is not prominent in the history then we are not confident
+        if score_count[prominent_name] / len(results_list) < 0.65:
+            return "unknown", 0.0
+
         return prominent_name, weighted_scores[prominent_name] / total_face_areas[
             prominent_name
         ]

frigate/embeddings/__init__.py

@@ -236,10 +236,6 @@ class EmbeddingsContext:
         if len(os.listdir(folder)) == 0:
             os.rmdir(folder)
 
-        self.requestor.send_data(
-            EmbeddingsRequestEnum.clear_face_classifier.value, None
-        )
-
     def update_description(self, event_id: str, description: str) -> None:
         self.requestor.send_data(
             EmbeddingsRequestEnum.embed_description.value,

frigate/embeddings/onnx/face_embedding.py

@@ -11,105 +11,9 @@ from frigate.util.downloader import ModelDownloader
 from .base_embedding import BaseEmbedding
 from .runner import ONNXModelRunner
 
-try:
-    from tflite_runtime.interpreter import Interpreter
-except ModuleNotFoundError:
-    from tensorflow.lite.python.interpreter import Interpreter
-
 logger = logging.getLogger(__name__)
 
-ARCFACE_INPUT_SIZE = 112
-FACENET_INPUT_SIZE = 160
-
-
-class FaceNetEmbedding(BaseEmbedding):
-    def __init__(
-        self,
-        device: str = "AUTO",
-    ):
-        super().__init__(
-            model_name="facedet",
-            model_file="facenet.tflite",
-            download_urls={
-                "facenet.tflite": "https://github.com/NickM-27/facenet-onnx/releases/download/v1.0/facenet.tflite",
-            },
-        )
-        self.device = device
-        self.download_path = os.path.join(MODEL_CACHE_DIR, self.model_name)
-        self.tokenizer = None
-        self.feature_extractor = None
-        self.runner = None
-        files_names = list(self.download_urls.keys())
-
-        if not all(
-            os.path.exists(os.path.join(self.download_path, n)) for n in files_names
-        ):
-            logger.debug(f"starting model download for {self.model_name}")
-            self.downloader = ModelDownloader(
-                model_name=self.model_name,
-                download_path=self.download_path,
-                file_names=files_names,
-                download_func=self._download_model,
-            )
-            self.downloader.ensure_model_files()
-        else:
-            self.downloader = None
-            self._load_model_and_utils()
-            logger.debug(f"models are already downloaded for {self.model_name}")
-
-    def _load_model_and_utils(self):
-        if self.runner is None:
-            if self.downloader:
-                self.downloader.wait_for_download()
-
-            self.runner = Interpreter(
-                model_path=os.path.join(MODEL_CACHE_DIR, "facedet/facenet.tflite"),
-                num_threads=2,
-            )
-            self.runner.allocate_tensors()
-            self.tensor_input_details = self.runner.get_input_details()
-            self.tensor_output_details = self.runner.get_output_details()
-
-    def _preprocess_inputs(self, raw_inputs):
-        pil = self._process_image(raw_inputs[0])
-
-        # handle images larger than input size
-        width, height = pil.size
-        if width != FACENET_INPUT_SIZE or height != FACENET_INPUT_SIZE:
-            if width > height:
-                new_height = int(((height / width) * FACENET_INPUT_SIZE) // 4 * 4)
-                pil = pil.resize((FACENET_INPUT_SIZE, new_height))
-            else:
-                new_width = int(((width / height) * FACENET_INPUT_SIZE) // 4 * 4)
-                pil = pil.resize((new_width, FACENET_INPUT_SIZE))
-
-        og = np.array(pil).astype(np.float32)
-
-        # Image must be FACE_EMBEDDING_SIZExFACE_EMBEDDING_SIZE
-        og_h, og_w, channels = og.shape
-        frame = np.zeros(
-            (FACENET_INPUT_SIZE, FACENET_INPUT_SIZE, channels), dtype=np.float32
-        )
-
-        # compute center offset
-        x_center = (FACENET_INPUT_SIZE - og_w) // 2
-        y_center = (FACENET_INPUT_SIZE - og_h) // 2
-
-        # copy img image into center of result image
-        frame[y_center : y_center + og_h, x_center : x_center + og_w] = og
-
-        # run facenet normalization
-        frame = (frame / 127.5) - 1.0
-
-        frame = np.expand_dims(frame, axis=0)
-        return frame
-
-    def __call__(self, inputs):
-        self._load_model_and_utils()
-        processed = self._preprocess_inputs(inputs)
-        self.runner.set_tensor(self.tensor_input_details[0]["index"], processed)
-        self.runner.invoke()
-        return self.runner.get_tensor(self.tensor_output_details[0]["index"])
+FACE_EMBEDDING_SIZE = 112
 
 
 class ArcfaceEmbedding(BaseEmbedding):
@@ -162,25 +66,25 @@ class ArcfaceEmbedding(BaseEmbedding):
 
         # handle images larger than input size
         width, height = pil.size
-        if width != ARCFACE_INPUT_SIZE or height != ARCFACE_INPUT_SIZE:
+        if width != FACE_EMBEDDING_SIZE or height != FACE_EMBEDDING_SIZE:
             if width > height:
-                new_height = int(((height / width) * ARCFACE_INPUT_SIZE) // 4 * 4)
-                pil = pil.resize((ARCFACE_INPUT_SIZE, new_height))
+                new_height = int(((height / width) * FACE_EMBEDDING_SIZE) // 4 * 4)
+                pil = pil.resize((FACE_EMBEDDING_SIZE, new_height))
             else:
-                new_width = int(((width / height) * ARCFACE_INPUT_SIZE) // 4 * 4)
-                pil = pil.resize((new_width, ARCFACE_INPUT_SIZE))
+                new_width = int(((width / height) * FACE_EMBEDDING_SIZE) // 4 * 4)
+                pil = pil.resize((new_width, FACE_EMBEDDING_SIZE))
 
         og = np.array(pil).astype(np.float32)
 
         # Image must be FACE_EMBEDDING_SIZExFACE_EMBEDDING_SIZE
         og_h, og_w, channels = og.shape
         frame = np.zeros(
-            (ARCFACE_INPUT_SIZE, ARCFACE_INPUT_SIZE, channels), dtype=np.float32
+            (FACE_EMBEDDING_SIZE, FACE_EMBEDDING_SIZE, channels), dtype=np.float32
         )
 
         # compute center offset
-        x_center = (ARCFACE_INPUT_SIZE - og_w) // 2
-        y_center = (ARCFACE_INPUT_SIZE - og_h) // 2
+        x_center = (FACE_EMBEDDING_SIZE - og_w) // 2
+        y_center = (FACE_EMBEDDING_SIZE - og_h) // 2
 
         # copy img image into center of result image
         frame[y_center : y_center + og_h, x_center : x_center + og_w] = og

web/public/locales/en/views/settings.json

@@ -113,11 +113,11 @@
         "desc": "The size of the model used for face recognition.",
         "small": {
           "title": "small",
-          "desc": "Using <em>small</em> employs a FaceNet face embedding model that runs efficiently on most CPUs."
+          "desc": "Using <em>small</em> employs a Local Binary Pattern Histogram model via OpenCV that runs efficiently on most CPUs."
         },
         "large": {
           "title": "large",
-          "desc": "Using <em>large</em> employs an ArcFace face embedding model and will automatically run on the GPU if applicable."
+          "desc": "Using <em>large</em> employs an ArcFace Face embedding model and will automatically run on the GPU if applicable."
         }
       }
     },

web/src/components/menu/GeneralSettings.tsx

@@ -12,6 +12,7 @@ import {
   LuSettings,
   LuSun,
   LuSunMoon,
+  LuEarth,
 } from "react-icons/lu";
 import {
   DropdownMenu,
@@ -75,7 +76,7 @@ export default function GeneralSettings({ className }: GeneralSettingsProps) {
 
   // settings
 
-  const { language, setLanguage } = useLanguage();
+  const { language, setLanguage, systemLanguage } = useLanguage();
   const { theme, colorScheme, setTheme, setColorScheme } = useTheme();
   const [restartDialogOpen, setRestartDialogOpen] = useState(false);
   const [passwordDialogOpen, setPasswordDialogOpen] = useState(false);
@@ -351,6 +352,24 @@ export default function GeneralSettings({ className }: GeneralSettingsProps) {
                       </span>
                     )}
                   </MenuItem>
+                  <MenuItem
+                    className={
+                      isDesktop
+                        ? "cursor-pointer"
+                        : "flex items-center p-2 text-sm"
+                    }
+                    aria-label={t("menu.language.withSystem.label")}
+                    onClick={() => setLanguage(systemLanguage)}
+                  >
+                    {language === systemLanguage ? (
+                      <>
+                        <LuEarth className="mr-2 size-4 scale-100 transition-all" />
+                        {t("menu.withSystem")}
+                      </>
+                    ) : (
+                      <span className="ml-6 mr-2">{t("menu.withSystem")}</span>
+                    )}
+                  </MenuItem>
                 </SubItemContent>
               </Portal>
             </SubItem>

web/src/components/overlay/detail/ObjectLifecycle.tsx

@@ -365,6 +365,7 @@ export default function ObjectLifecycle({
       <div
         className={cn(
           "relative mx-auto flex max-h-[50dvh] flex-row justify-center",
+          !imgLoaded && aspectRatio < 16 / 9 && "h-full",
         )}
         style={{
           aspectRatio: !imgLoaded ? aspectRatio : undefined,

web/src/pages/Explore.tsx

@@ -399,25 +399,19 @@ export default function Explore() {
                   )}
                   <div className="flex flex-row items-center justify-center gap-3">
                     <span className="text-primary-variant">
-                      {t(
-                        "exploreIsUnavailable.embeddingsReindexing.step.thumbnailsEmbedded",
-                      )}
+                      t("exploreIsUnavailable.embeddingsReindexing.step.thumbnailsEmbedded")
                     </span>
                     {reindexState.thumbnails}
                   </div>
                   <div className="flex flex-row items-center justify-center gap-3">
                     <span className="text-primary-variant">
-                      {t(
-                        "exploreIsUnavailable.embeddingsReindexing.step.descriptionsEmbedded",
-                      )}
+                      t("exploreIsUnavailable.embeddingsReindexing.step.descriptionsEmbedded")
                     </span>
                     {reindexState.descriptions}
                   </div>
                   <div className="flex flex-row items-center justify-center gap-3">
                     <span className="text-primary-variant">
-                      {t(
-                        "exploreIsUnavailable.embeddingsReindexing.step.trackedObjectsProcessed",
-                      )}
+                      t("exploreIsUnavailable.embeddingsReindexing.step.trackedObjectsProcessed")
                     </span>
                     {reindexState.processed_objects} /{" "}
                     {reindexState.total_objects}