---
title: PatchCore Defect Detection
emoji: 🔍
colorFrom: gray
colorTo: red
sdk: static
app_file: index.html
pinned: false
license: cc-by-nc-sa-4.0
short_description: Find manufacturing defects without ever seeing one
models:
  - yandyassine/patchcore-mvtec-ad
---

# PatchCore defect detection, in your browser

From-scratch reimplementation of PatchCore (CVPR 2022), exported to ONNX and run client-side with ONNX Runtime Web
(WebGPU when available, WebAssembly otherwise). No server: uploaded images never leave the visitor's device.

Image AUROC on MVTec AD: **1.000 / 0.999 / 0.977** (bottle / metal nut / grid), measured with the same ONNX files.

- Model files and card: [yandyassine/patchcore-mvtec-ad](https://huggingface.co/yandyassine/patchcore-mvtec-ad)
- Code & write-up: [COMPUTER-VISION-PROJECT-LIBRARY / 13](https://github.com/yandouziyassine/COMPUTER-VISION-PROJECT-LIBRARY/tree/main/13-anomaly-detection-patchcore)
- Data: MVTec AD, CC BY-NC-SA 4.0 (non-commercial).