How to Run a classifier with only low confidence detection from nvdsinfer

Hello, I suppose that I have a pose estimation model. My pipeline is that after detected pose with pose estimation model, I use the additional human classifier to check the low confidence score threshold wherether the detected object is person or not. I use deepstream to accelerate my pipeline. So how can I use nvdsinfer plugin to construct my pipeline. Actually The pipeline without Human classifier works fine for me. But I dont know how to put it to my pipeline. Thanks alot.

Can you tell more details about this human classifier model? What are the input layers and output layers? For example, for yolo models, we know it has only one input layer which is a RGB image.