Local context attention learning for fine-grained scene graph generation

Fine-grained scene graph generation aims to parse the objects and their fine-grained relationships within scenes. Despite the significant progress in recent years, their performance is still limited by two major issues: (1) ambiguous perception under a global view; (2) the lack of reliable, fine-grained annotations. We argue that understanding the local context is important in addressing the two issues. However, previous works often overlook it, which limits their effectiveness in fine-grained scene graph generation. To tackle this challenge, we introduce a Local-context Attention Learning method that concentrates on local context and can generate high-reliability, fine-grained annotations. It comprises two components: (1) The Fine-grained Location Attention Network (FLAN), a multi-branch network that encompasses global and local branches, can attend to local informative context and perceive granularity levels in different regions, thereby adaptively enhancing the learning of fine-grained locations. (2) The Fine-grained Location Label Transfer (FLLT) method identifies coarse-grained labels inconsistent with the local context and determines which labels should be transferred through the global confidence thresholding strategy, finally transferring them to reliable local context-consistent fine-grained ones. Experiments conducted on the Visual Genome, OpenImage, and GQA200 datasets show that the proposed methods achieve significant improvements on the fine-grained scene graph generation task. By addressing the challenge mentioned above, our method also achieves state-of-the-art performances on the three datasets.