<ul><li>Neural Fidelity Calibration (NFC) is a novel framework that calibrates simulator physical coefficients and residual fidelity domains online during robot execution.</li><li>It fine-tunes the pretrained policy only under anomalous scenarios and builds sequential NFC online with the pretrained NFC's proposal prior.</li><li>NFC leverages optimistic exploration to enable hallucinated policy optimization when uncertainty is high and may degrade policy improvement.</li><li>The framework achieves superior simulator calibration precision and demonstrates robust robot navigation under challenging real-world conditions.</li></ul>

Neural Fidelity Calibration for Informative Sim-to-Real Adaptation

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