Looking for Human Head Detection Model for Top-Down Footfall Counting

General Discussion
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1

Hi team,

I came across a model named damoyolo_humanhead--640x640_quant_hailort_hailo8_1 listed on https://hub.degirum.com/ while searching for a suitable model for a footfall counting application (detecting humans from a top/roof view).

However, it looks like this model is no longer available in the current library.
Was it removed or relocated? And is there any recommended alternative that works well for top-down human detection on Hailo8?

Any guidance or workaround would be greatly appreciated.

Thank you in advance!

2

Hi @Freddy_M

Can you please clarify what you mean by it is no longer available? It is still available in our model zoo: DamoYOLOModel

3 
def load_model(self):
    """Load DeGirum models - person detection + face detection + gender classification"""
    if dg is None or degirum_tools is None:
        raise RuntimeError("DeGirum or degirum_tools not available")

    try:
        # Set token
        # token = degirum_tools.get_token() if hasattr(degirum_tools, 'get_token') else ''
        
        # Choose inference host address
        inference_host_address = "@local"
        zoo_url = "degirum/models_hailort"

        # Load person detection model (proven working model with automatic camera exposure)
        logging.info("Loading person detection model...")
        self.model = dg.load_model(
            model_name="yolov8n_relu6_person--640x640_quant_hailort_hailo8l_1",
            inference_host_address=inference_host_address,
            zoo_url=zoo_url,
            token='',
            overlay_color=[(255, 255, 0), (0, 255, 0)],
            measure_time=False
        )
        logging.info("âś… Person detection model loaded successfully")

        # Conditionally load face and gender models based on config
        if self.config.ENABLE_GENDER_DETECTION or self.config.ENABLE_FACE_DETECTION:
            # Load face detection model (for gender classification within person ROIs)
            logging.info("Loading face detection model...")
            self.face_model = dg.load_model(
                model_name="yolov8n_relu6_face--640x640_quant_hailort_hailo8l_1",
                inference_host_address=inference_host_address,
                zoo_url=zoo_url,
                token='',
                measure_time=False
            )
            logging.info("âś… Face detection model loaded successfully")
        else:
            self.face_model = None
            logging.info("đźš« Face detection model DISABLED")

        if self.config.ENABLE_GENDER_DETECTION:
            # Load gender classification model
            logging.info("Loading gender classification model...")
            self.gender_model = dg.load_model(
                model_name="yolov8n_relu6_fairface_gender--256x256_quant_hailort_hailo8l_1",
                inference_host_address=inference_host_address,
                zoo_url=zoo_url,
                token='',
            )
            logging.info("âś… Gender classification model loaded successfully")
        else:
            self.gender_model = None
            logging.info("đźš« Gender classification model DISABLED")
        

    except Exception as e:
        raise RuntimeError(f"Failed to load DeGirum model: {e}")




2025-11-12 11:34:52,102 - INFO - Local inference with cloud zoo at 'https://hub.degirum.com/degirum/models_hailort'
2025-11-12 11:34:53,285 - INFO - sending a request to https://hub.degirum.com/zoo/v1/public/models/degirum/models_hailort/damoyolo_humanhead–640x640_quant_hailort_hailo8_1/info
2025-11-12 11:34:54,026 - ERROR - Failed to initialize: Failed to load DeGirum model: could not get model by url. (cloud server response: 400 Client Error: Bad Request for url: https://hub.degirum.com/zoo/v1/public/models/degirum/models_hailort/damoyolo_humanhead%E2%80%93640x640_quant_hailort_hailo8_1/info).

Here when i try to replace my current person detection model with this “damoyolo_humanhead–640x640_quant_hailort_hailo8_1”, it’s throwing me this error. Correct me if i’m doing something wrong here and thank you in advance!
4

Hi @Freddy_M

Please change zoo_urlto degirum/hailo

5

Hello @shashi ,

My bad — I literally copied the zoo_url along with the model_name and didn’t notice it. Thanks for pointing it out. Have a nice day!

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