SGTR+= End-to-end Scene Graph Generation with Transformer

SGTR 是一种自上而下的方法，该方法首先使用基于Transformer的生成器来生成一组可学习的triplet queries (subject–predicate–object)，然后使用级联的triplet detector逐步完善这些查询并生成最终场景图。它还提出了一种基于结构化发生器的实体感知关系表示方法，该方法利用了关系的组成属性。

Top-down approach (SGTR):
- Starts with higher-level structures (triplet queries) and refines them
- Begins by generating complete subject-predicate-object triplet candidates
- Then progressively refines these triplets to match the image content
- Works with the complete structural units from the beginning
- Analogous to starting with a rough sketch of the entire tree and then refining each branch