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Paper · 2601.09497 · 2026

Towards Robust Cross-Dataset Object Detection Generalization under Domain Specificity

Umapada Pal, Ritabrata Chakraborty, Shivakumara Palaiahnakote, Hrishit Mitra

arXiv · PDF · Open in the Atlas

Code that ran

We lifted 6 functions out of this paper's own repositories and ran 0 of them in a sandbox. "Ran" means the function executed on a synthesized input and returned a value. It is not a reproduction of the paper's results.

RepositoryRoleRan
Ritabrata04/cdod-icpr canonical 0 of 6
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invert Not yet run Ritabrata04/cdod-icpr/class_aligner.py
pointer only (licence: NONE) · get_code("15cff93e5a0a7039")
load_alignment Not yet run Ritabrata04/cdod-icpr/predictions_to_coco.py
pointer only (licence: NONE) · get_code("0aea977d62c09bc9")
load_norm Not yet run Ritabrata04/cdod-icpr/class_aligner.py
pointer only (licence: NONE) · get_code("7c1332f94fa744b2")
normalize Not yet run Ritabrata04/cdod-icpr/normalize_classes.py
pointer only (licence: NONE) · get_code("0e5bb0c9ed3042e3")
normalize_label Not yet run Ritabrata04/cdod-icpr/predictions_to_coco.py
pointer only (licence: NONE) · get_code("912d63a41e05581c")
xyxy_to_xywh Not yet run Ritabrata04/cdod-icpr/predictions_to_coco.py
pointer only (licence: NONE) · get_code("cfa88e55be3fdc2a")

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Abstract

Object detectors often perform well in-distribution, yet degrade sharply on a different benchmark. We study cross-dataset object detection (CD-OD) through a lens of setting specificity. We group benchmarks into setting-agnostic datasets with diverse everyday scenes and setting-specific datasets tied to a narrow environment, and evaluate a standard detector family across all train-test pairs. This reveals a clear structure in CD-OD: transfer within the same setting type is relatively stable, while transfer across setting types drops substantially and is often asymmetric. The most severe breakdowns occur when transferring from specific sources to agnostic targets, and persist after open-label alignment, indicating that domain shift dominates in the hardest regimes. To disentangle domain shift from label mismatch, we compare closed-label transfer with an open-label protocol that maps predicted classes to the nearest target label using CLIP similarity. Open-label evaluation yields consistent but bounded gains, and many corrected cases correspond to semantic near-misses supported by the image evidence. Overall, we provide a principled characterization of CD-OD under setting specificity and practical guidance for evaluating detectors under distribution shift. Code will be released at https://github.com/Ritabrata04/cdod-icpr

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