Modulate-and-Map: Crossmodal Feature Mapping with Cross-View Modulation for 3D Anomaly Detection

• URL: http://arxiv.org/abs/2604.02328v1
• Date: Thu, 02 Apr 2026 17:59:51 GMT
• Title: Modulate-and-Map: Crossmodal Feature Mapping with Cross-View Modulation for 3D Anomaly Detection
• Abstract summary: ModMap is a multiview and multimodal framework for 3D anomaly detection and segmentation.<n>To process high-resolution 3D data, we train and publicly release a foundational depth encoder.
• Score: 24.706105488382818
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We present ModMap, a natively multiview and multimodal framework for 3D anomaly detection and segmentation. Unlike existing methods that process views independently, our method draws inspiration from the crossmodal feature mapping paradigm to learn to map features across both modalities and views, while explicitly modelling view-dependent relationships through feature-wise modulation. We introduce a cross-view training strategy that leverages all possible view combinations, enabling effective anomaly scoring through multiview ensembling and aggregation. To process high-resolution 3D data, we train and publicly release a foundational depth encoder tailored to industrial datasets. Experiments on SiM3D, a recent benchmark that introduces the first multiview and multimodal setup for 3D anomaly detection and segmentation, demonstrate that ModMap attains state-of-the-art performance by surpassing previous methods by wide margins.

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