The origin PSG paper adapts classic two-stage SGG methods such as IMP, MOTIFS, VCTree, and GPSNet into PSG setting with minimal modification.
[ECCV'22] PSGTR
Based on the end-to-end model DETR, PSGTR uses a set of queries to directly learn subject / relation / object triplets.
[ECCV'22] PSGFormer
Instead of using the unified triplet queries, PSGFormer uses two kinds of queries to separately model objects and relations and then interact for final triplet predictions.