---
# System prepended metadata

title: Feature Dictionary vs. PatchCore
tags: [paper, working]

---

# Feature Dictionary vs. PatchCore

###### tags: `paper` `working`

|                      | Feature Dictionary [^1]            | PatchCore [^2]                      |
| -------------------- | ---------------------------------- | ----------------------------------- |
| dataset              | Scanning Electron Microscope       | MVTec AD                            |
| patch size           |                                    |                                     |
| backbone             | ResNet18                           | WideResNet50                        |
| feature vector size  | level 5                            | level 2 + 3                         |
| post-feature  mixing | (No further action)                | avgpool(size=3) + upsample + concat |
|                      | PCA                                | Random Linear Projection            |
| clustering           | k-means                            | coreset selection                   |
| anomaly score        | averaging distances of $m$ nearest | distance to the nearest             |

[^1]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5795842/pdf/sensors-18-00209.pdf
[^2]: http://arxiv.org/abs/2106.08265