Dynamic Object Queries for Transformer-based Incremental Object Detection

• URL: http://arxiv.org/abs/2407.21687v2
• Date: Tue, 27 Aug 2024 12:03:00 GMT
• Title: Dynamic Object Queries for Transformer-based Incremental Object Detection
• Authors: Jichuan Zhang, Wei Li, Shuang Cheng, Ya-Li Li, Shengjin Wang,
• Abstract summary: Incremental object detection aims to sequentially learn new classes, while maintaining the capability to locate and identify old ones. Prior methodologies mainly tackle the forgetting issue through knowledge distillation and exemplar replay. We propose DyQ-DETR, which incrementally expands the model representation ability to achieve stability-plasticity tradeoffs.
• Score: 45.41291377837515
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Incremental object detection (IOD) aims to sequentially learn new classes, while maintaining the capability to locate and identify old ones. As the training data arrives with annotations only with new classes, IOD suffers from catastrophic forgetting. Prior methodologies mainly tackle the forgetting issue through knowledge distillation and exemplar replay, ignoring the conflict between limited model capacity and increasing knowledge. In this paper, we explore \textit{dynamic object queries} for incremental object detection built on Transformer architecture. We propose the \textbf{Dy}namic object \textbf{Q}uery-based \textbf{DE}tection \textbf{TR}ansformer (DyQ-DETR), which incrementally expands the model representation ability to achieve stability-plasticity tradeoff. First, a new set of learnable object queries are fed into the decoder to represent new classes. These new object queries are aggregated with those from previous phases to adapt both old and new knowledge well. Second, we propose the isolated bipartite matching for object queries in different phases, based on disentangled self-attention. The interaction among the object queries at different phases is eliminated to reduce inter-class confusion. Thanks to the separate supervision and computation over object queries, we further present the risk-balanced partial calibration for effective exemplar replay. Extensive experiments demonstrate that DyQ-DETR significantly surpasses the state-of-the-art methods, with limited parameter overhead. Code will be made publicly available.

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