Hi,
I’ve use the “new” integrate face detection directly in Frigate (version 16.0 RC4) and it’s working pretty well. I use the 4.21 HailoRT driver on Ubuntu (PCIE and Driver https://hailo.ai/developer-zone/documentation/hailort-v4-21-0/?sp_referrer=install/install.html ).
I only use the ssd_mobilenet_v1.hef model.
For more information for Frigate : Face Recognition | Frigate .
In Frigate, just go to Settings, Enrichments and enable Facial Detection (with Hailo I use the small model). I’ve just adjust the recognition_threshold to 0.8.
Then go to your Face Library, add a (or more) face with picture and “train” your model when you have detection of known face. And enjoy 
If it can help my Frigate config linked to detection looks like :
detectors:
hailo8l:
type: hailo8l
device: PCIemodel:
width: 300
height: 300
input_tensor: nhwc
input_pixel_format: bgr
model_type: ssd
path: /config/model_cache/h8l_cache/ssd_mobilenet_v1.hefdetect:
enabled: trueface_recognition:
enabled: true
recognition_threshold: 0.8