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Multi-task Compositional Network for Visual Relationship Detection
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PRE
AI
DOI：10.1007/s11263-020-01353-8.png)
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Abstract
En 中文
Previous methods treat visual relationship detection as a combination of object detection and predicate detection. However, natural images likely contain hundreds of objects and thousands of object pairs. Relying only on object detection and predicate detection is insufficient for effective visual relationship detection because the significant relationships are easily overwhelmed by the dominant less-significant relationships. In this paper, we propose a novel subtask for visual relationship detection, the significance detection, as the complement of object detection and predicate detection. Significance detection refers to the task of identifying object pairs with significant relationships. Meanwhile, we propose a novel multi-task compositional network (MCN) that simultaneously performs object detection, predicate detection, and significance detection. MCN consists of three modules, an object detector, a relationship generator, and a relationship predictor. The object detector detects objects. The relationship generator provides useful relationships, and the relationship predictor produces significance scores and predicts predicates. Furthermore, MCN proposes a multimodal feature fusion strategy based on visual, spatial, and label features and a novel correlated loss function to deeply combine object detection, predicate detection, and significance detection. MCN is validated on two datasets: visual relationship detection dataset and visual genome dataset. The experimental results compared with state-of-the-art methods verify the competitiveness of MCN and the usefulness of significance detection in visual relationship detection.
Keywords:
Visual relationship detection
Object detection
Predicate detection
Significance detection
Multi-task
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