A More Compact Object Detector Head Network with Feature Enhancement and Relational Reasoning

• URL: http://arxiv.org/abs/2106.14475v1
• Date: Mon, 28 Jun 2021 08:38:57 GMT
• Title: A More Compact Object Detector Head Network with Feature Enhancement and Relational Reasoning
• Authors: Wen chao Zhang, Chong Fu, Xiang shi Chang, Teng fei Zhao, Xiang Li, Chiu-Wing Sham
• Abstract summary: We propose a more compact object detector head network (CODH), which can preserve global context information and condense the information density. With our method, the parameters of the head network is 0.6 times smaller than the state-of-the-art Cascade R-CNN, yet the performance boost is 1.3% on COCO test-dev.
• Score: 4.171249457570931
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Modeling implicit feature interaction patterns is of significant importance to object detection tasks. However, in the two-stage detectors, due to the excessive use of hand-crafted components, it is very difficult to reason about the implicit relationship of the instance features. To tackle this problem, we analyze three different levels of feature interaction relationships, namely, the dependency relationship between the cropped local features and global features, the feature autocorrelation within the instance, and the cross-correlation relationship between the instances. To this end, we propose a more compact object detector head network (CODH), which can not only preserve global context information and condense the information density, but also allows instance-wise feature enhancement and relational reasoning in a larger matrix space. Without bells and whistles, our method can effectively improve the detection performance while significantly reducing the parameters of the model, e.g., with our method, the parameters of the head network is 0.6 times smaller than the state-of-the-art Cascade R-CNN, yet the performance boost is 1.3% on COCO test-dev. Without losing generality, we can also build a more lighter head network for other multi-stage detectors by assembling our method.

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