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- W4224932141 abstract "Current state-of-the-art weakly supervised object detection (WSOD) studies mainly follow a two-stage training strategy which integrates a fully supervised detector (FSD) with a pure WSOD model. There are two main problems hindering the performance of the two-phase WSOD approaches, i.e., insufficient learning problem and strict reliance between the FSD and the pseudo ground truth (PGT) generated by the WSOD model. This paper proposes pseudo ground truth refinement network (PGTRNet), a simple yet effective method with-out introducing any extra learnable parameters, to cope with these problems. PGTRNet utilizes multiple bounding boxes to establish the PGT, mitigating the insufficient learning problem. Besides, we propose a novel online PGT refinement approach to steadily improve the quality of PGT by fully taking advantage of the power of FSD during the second-phase training, decoupling the first and second-phase models. Elaborate experiments are conducted on the PASCAL VOC 2007 benchmark to verify the effectiveness of our methods. Experimental results demonstrate that PGTRNet boosts the backbone model by 2.1% mAP and achieves the state-of-the-art performance." @default.
- W4224932141 created "2022-04-28" @default.
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- W4224932141 date "2022-05-23" @default.
- W4224932141 modified "2023-09-27" @default.
- W4224932141 title "PGTRNET: Two-Phase Weakly Supervised Object Detection with Pseudo Ground Truth Refinement" @default.
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- W4224932141 doi "https://doi.org/10.1109/icassp43922.2022.9746625" @default.
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