Figure 2: Overview of the UniOSE model. (a) Semantics-Enriched Object Namer combines Deformable region reader layer detector features with region-level VLM semantics to construct queries z and generates category i names with a generative lang F uage model. (b) Semantics-Guided Object Dx2etector predicts candi- q Deformable date boxes and combines query–targ+et caLteaygeroNroyrmmatchFiFnNg cos+ts wiLtahyesrNpoarmtial costs for training-time Cross-Attention supervision assignment. (c) Semantically Conditioned Mask Decoder injects z into the first mask i token and combines it with image features and predicted boxes to generate masks.