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porting yolov11(best_saved_model/best_integer_quant.tflite) model to stm32mp257,

fanronghua0123456
Associate III

hi,all.

 I used “best_saved_model/best_integer_quant.tflite” to perform inference on the PC,it's looks success!

tflite_model = YOLO("/home/alientek/best_saved_model/best_integer_quant.tflite")

# Run inference
results = tflite_model("/home/alientek/hander1_1.jpg")

 

and output like this.

(yolov11) alientek@ubuntu:~/yolov11$ python test1.py 
/home/alientek/.conda/envs/yolov11/lib/python3.10/site-packages/requests/__init__.py:86: RequestsDependencyWarning: Unable to find acceptable character detection dependency (chardet or charset_normalizer).
  warnings.warn(
WARNING ⚠️ Unable to automatically guess model task, assuming 'task=detect'. Explicitly define task for your model, i.e. 'task=detect', 'segment', 'classify','pose' or 'obb'.
Loading /home/alientek/best_saved_model/best_integer_quant.tflite for TensorFlow Lite inference...
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.

image 1/1 /home/alientek/hander1_1.jpg: 640x640 1 handler1, 1760.9ms
Speed: 38.9ms preprocess, 1760.9ms inference, 26.5ms postprocess per image at shape (1, 3, 640, 640)

 

But when I deploy to the stm32mp257 using the following code, the target is not detected.

for (int w = 0; w < 8400; w++)
{
    float cx = data[0 * 8400 + w];
    float cy = data[1 * 8400 + w];
    float w_box = data[2 * 8400 + w];
    float h_box = data[3 * 8400 + w];

    // Find class with max probability
    float max_score = 0;
    int max_class = -1;
    for (int c = 0; c < num_classes; c++)
    {
        float score = data[(4 + c) * 8400 + w];
        if (score > max_score)
        {
            max_score = score;
            max_class = c;
        }
    }

    if (max_score > confidence_threshold)
    {
        ObjDetect_Results det;
        det.x = cx;
        det.y = cy;
        det.w = w_box;
        det.h = h_box;
        det.class_id = max_class;
        det.confidence = max_score;
        detections.push_back(det);
    }
}

 

1 ACCEPTED SOLUTION

Accepted Solutions
Julian E.
ST Employee

Hi @fanronghua0123456,

 

I think this question is part of this thread. Please don't duplicate threads.

Re: porting yolov11 model to stm32mp257. - Page 2 - STMicroelectronics Community

 

Have a good day,
Julian


In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

View solution in original post

1 REPLY 1
Julian E.
ST Employee

Hi @fanronghua0123456,

 

I think this question is part of this thread. Please don't duplicate threads.

Re: porting yolov11 model to stm32mp257. - Page 2 - STMicroelectronics Community

 

Have a good day,
Julian


In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.