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detectors/edgetpu_tfl: add support for yolov8

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This commit is contained in:
Indrek Mandre 2024-02-02 17:21:42 +02:00
parent cd508980bb
commit 80ae30e30e
1 changed files with 15 additions and 0 deletions
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15
frigate/detectors/plugins/edgetpu_tfl.py
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@ -6,6 +6,7 @@ from typing_extensions import Literal
from frigate.detectors.detection_api import DetectionApi
from frigate.detectors.detector_config import BaseDetectorConfig
import frigate.detectors.yolo_utils as yolo_utils
try:
from tflite_runtime.interpreter import Interpreter, load_delegate
@ -54,11 +55,25 @@ class EdgeTpuTfl(DetectionApi):
self.tensor_input_details = self.interpreter.get_input_details()
self.tensor_output_details = self.interpreter.get_output_details()
self.model_type = detector_config.model.model_type
def detect_raw(self, tensor_input):
if self.model_type == 'yolov8':
scale, zero_point = self.tensor_input_details[0]['quantization']
tensor_input = ((tensor_input - scale * zero_point * 255) * (1.0 / (scale * 255))).astype(self.tensor_input_details[0]['dtype'])
self.interpreter.set_tensor(self.tensor_input_details[0]["index"], tensor_input)
self.interpreter.invoke()
if self.model_type == 'yolov8':
scale, zero_point = self.tensor_output_details[0]['quantization']
tensor_output = self.interpreter.get_tensor(self.tensor_output_details[0]['index'])
tensor_output = (tensor_output.astype(np.float32) - zero_point) * scale
model_input_shape = self.tensor_input_details[0]['shape']
tensor_output[:, [0, 2]] *= model_input_shape[2]
tensor_output[:, [1, 3]] *= model_input_shape[1]
return yolo_utils.yolov8_postprocess(model_input_shape, tensor_output)
boxes = self.interpreter.tensor(self.tensor_output_details[0]["index"])()[0]
class_ids = self.interpreter.tensor(self.tensor_output_details[1]["index"])()[0]
scores = self.interpreter.tensor(self.tensor_output_details[2]["index"])()[0]