Towards High-Resolution 3D Anomaly Detection: A Scalable Dataset and Real-Time Framework for Subtle Industrial Defects

TL;DR

This paper introduces a high-resolution 3D anomaly detection dataset and a real-time framework that leverages detailed geometric features, significantly improving detection accuracy and speed for subtle industrial defects.

Contribution

We created MiniShift, the first high-resolution 3D anomaly dataset, and developed Simple3D, an efficient framework that captures intricate details with minimal computation for real-time detection.

Findings

Simple3D outperforms existing methods in accuracy.

Simple3D achieves over 20 fps in real-time.

High-resolution data enhances anomaly detection performance.

Abstract

In industrial point cloud analysis, detecting subtle anomalies demands high-resolution spatial data, yet prevailing benchmarks emphasize low-resolution inputs. To address this disparity, we propose a scalable pipeline for generating realistic and subtle 3D anomalies. Employing this pipeline, we developed MiniShift, the inaugural high-resolution 3D anomaly detection dataset, encompassing 2,577 point clouds, each with 500,000 points and anomalies occupying less than 1\% of the total. We further introduce Simple3D, an efficient framework integrating Multi-scale Neighborhood Descriptors (MSND) and Local Feature Spatial Aggregation (LFSA) to capture intricate geometric details with minimal computational overhead, achieving real-time inference exceeding 20 fps. Extensive evaluations on MiniShift and established benchmarks demonstrate that Simple3D surpasses state-of-the-art methods in both accuracy and speed, highlighting the pivotal role of high-resolution data and effective feature aggregation in advancing practical 3D anomaly detection.