# Effect of Super Resolution on High Dimensional Features for Unsupervised   Face Recognition in the Wild

**Authors:** Ahmed ElSayed, Ausif Mahmood, Tarek Sobh

arXiv: 1704.01464 · 2018-11-14

## TL;DR

This paper investigates how a state-of-the-art super resolution algorithm enhances high-dimensional features in unsupervised face recognition from low-resolution, in-the-wild images, showing significant improvements in recognition accuracy.

## Contribution

It demonstrates the positive impact of super resolution on high-dimensional feature-based unsupervised face recognition in uncontrolled environments.

## Key findings

- Super resolution improves recognition rates significantly.
- Enhanced images lead to better feature extraction.
- Unsupervised algorithms benefit from super resolution enhancements.

## Abstract

Majority of the face recognition algorithms use query faces captured from uncontrolled, in the wild, environment. Often caused by the cameras limited capabilities, it is common for these captured facial images to be blurred or low resolution. Super resolution algorithms are therefore crucial in improving the resolution of such images especially when the image size is small requiring enlargement. This paper aims to demonstrate the effect of one of the state-of-the-art algorithms in the field of image super resolution. To demonstrate the functionality of the algorithm, various before and after 3D face alignment cases are provided using the images from the Labeled Faces in the Wild (lfw). Resulting images are subject to testing on a closed set face recognition protocol using unsupervised algorithms with high dimension extracted features. The inclusion of super resolution algorithm resulted in significant improved recognition rate over recently reported results obtained from unsupervised algorithms.

## Full text

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## Figures

11 figures with captions in the complete paper: https://tomesphere.com/paper/1704.01464/full.md

## References

19 references — full list in the complete paper: https://tomesphere.com/paper/1704.01464/full.md

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Source: https://tomesphere.com/paper/1704.01464