What does unary = self.dataset.get_unary(person, sub_imgid2cam, candidates, img_id) do in mem_dataset.py?

[yang074]

Clould anyone give me some tips about :

1. What does unary = self.dataset.get_unary(person, sub_imgid2cam, candidates, img_id) do in mem_dataset.py?

2. If I use another 2d pose extractor(like Openpose) what heatmap(size or ???) and heatmap_bbox should I feed into?
   ....
   for pid in person:
   Pi = self.P[sub_imgid2cam[pid]]
   heatmap = info_list[pid]['heatmap_data']
   crop = np.array ( info_list[pid]['heatmap_bbox'] )
   ...

Thanks