Ruiqiang Zhang — accepted AI-conference papers

2026

AuthSig: Safeguarding Scanned Signatures Against Unauthorized Reuse in Paperless Workflows

Ruiqiang Zhang, Zehua Ma, Guanjie Wang, Chang Liu, Hengyi Wang, Weiming Zhang

AAAI 2026technical

With the deepening trend of paperless workflows, signatures as a means of identity authentication are gradually shifting from traditional ink-on-paper to electronic formats. Despite the availability of dynamic pressure-sensitive and PKI-based digital signatures, static scanned signatures remain prev

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2026

FreeText: Training-Free Text Rendering via Attention Localization and Spectral Glyph Injection

RuiQiang Zhang, Hengyi Wang, Chang Liu, Guanjie Wang, Zehua Ma, Weiming Zhang

ICML 2026poster

Large-scale text-to-image (T2I) diffusion models excel at open-domain synthesis but still struggle with precise text rendering, especially for multi-line layouts, dense typography, and long-tailed scripts such as Chinese. Prior solutions typically necessitate costly retraining or impose rigid extern…

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