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Qing Liu

3 papers indexed

arxiveess.SPcs.AI2026-07-06

Physics-Informed Structure Anchoring With Capture-Aware Prototype Calibration for Cross-Environment RF Fingerprinting

Fengchong Yao, Jianbing Li, Qing Liu, Qikun Liu, Kefeng Song, Haitao Li, et al.

Radio frequency fingerprint identification (RFFI) exploits transmitter-specific hardware imperfections as physicallayer identity cues for Internet of Things (IoT) devices, but deep models often degrade across acquisition environments. In multi-antenna reception, antenna topology…

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arxivcs.CV2026-07-06

Enhancing Large Multimodal Models in Key Information Extraction via Scene-Aware Document Synthesis

Zhipeng Xu, Zulong Chen, Qing Liu, Junhao Ji, Jinxin Hu, Yipeng Yu, et al.

Key Information Extraction (KIE) converts visually rich documents into structured data, but practical deployment remains challenging: strong performance often relies on costly on-server Large Multimodal Models (LMMs), while compact locally deployable models lack sufficient KIE su…

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arxiveess.SPcs.AI2026-06-30

Cross-Receiver Open-Set Radio Frequency Fingerprinting via Structure-First Adaptation

Fengchong Yao, Jianbing Li, Qing Liu, Kefeng Song, Haitao Li, Song Wang, et al.

Radio frequency fingerprint identification (RFFI) provides a critical physical-layer security mechanism for dynamic Internet of Things (IoT) and ad hoc networks. However, the decentralized and open nature of these networks imposes two strict deployment criteria: the credential mu…

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