Paper Detail

CODE: Cross-Modal Calibration and Dynamic Suppression for Open World Object Detection

Hao Xu, Zhaoning Shi, Hehe Jin, Bo Ma

arxiv Score 8.3

Published 2026-08-27 · First seen 2026-08-28

General AI

Abstract

Open World Object Detection (OWOD) built on multimodal foundation models often suffers from semantic ambiguity caused by unidirectional text-to-vision matching, while rigid outlier penalties may over-suppress unknown objects near known-class decision boundaries. We propose CODE (Cross-Modal Calibration and Dynamic Suppression), a unified inference-time framework with three complementary components. Cross-Modal Joint Confidence Calibration injects global visual prototypes to calibrate text-driven known-class predictions. Uncertainty-Guided Universal Objectness Enhancement measures classification hesitation from local visual responses to strengthen potential unknown objects. Dynamic Outlier Suppression via Confidence Margin replaces rigid suppression with a margin-aware adjustment that preserves ambiguous out-of-distribution instances. Experiments on the Real-World Detection benchmark demonstrate that, with the OWL-ViT L/14 backbone, CODE achieves 21.7 U-mAP and 40.8 K-mAP in Task 1, surpassing the previous state of the art by 2.6 and 2.3 points, respectively.

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BibTeX

@article{xu2026code,
  title = {CODE: Cross-Modal Calibration and Dynamic Suppression for Open World Object Detection},
  author = {Hao Xu and Zhaoning Shi and Hehe Jin and Bo Ma},
  year = {2026},
  abstract = {Open World Object Detection (OWOD) built on multimodal foundation models often suffers from semantic ambiguity caused by unidirectional text-to-vision matching, while rigid outlier penalties may over-suppress unknown objects near known-class decision boundaries. We propose CODE (Cross-Modal Calibration and Dynamic Suppression), a unified inference-time framework with three complementary components. Cross-Modal Joint Confidence Calibration injects global visual prototypes to calibrate text-driven},
  url = {https://arxiv.org/abs/2608.27214},
  keywords = {cs.CV},
  eprint = {2608.27214},
  archiveprefix = {arXiv},
}

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