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Hauptverfasser: Ainelkitane, Otmane, Recktenwall-Calvet, Brian, Iqbal, Aasma, Kuhn, Carlos C. N.
Format: Preprint
Veröffentlicht: 2025
Schlagworte:
Online-Zugang:https://arxiv.org/abs/2506.17529
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author Ainelkitane, Otmane
Recktenwall-Calvet, Brian
Iqbal, Aasma
Kuhn, Carlos C. N.
author_facet Ainelkitane, Otmane
Recktenwall-Calvet, Brian
Iqbal, Aasma
Kuhn, Carlos C. N.
contents In this study, we investigate a simple quantum pre-processing filter kernel designed with only two CNOT gates for image feature extraction. We examine the impact of these filters when combined with a classical neural network for image classification tasks. Our main hypothesis is that this circuit can extract pixel correlation information that classical filters cannot. This approach is akin to a convolutional neural network, but with quantum layers replacing convolutional layers to extract spatial pixel entanglement. We found that a small circuit with just two CNOT gates can be engineered in three different spatial symmetries, each affecting classification differently. While the filter improves classification when combined with a simple, narrow network, it does not surpass complex classical methods. However, the filter demonstrates potential to enhance classification performance in more sophisticated architectures. Despite this, our empirical results show no clear correlation between the observed improvements and the level of entanglement in the quantum circuit, as measured by Von Neumann Entropy. The underlying cause of this improvement remains unclear and warrants further investigation.
format Preprint
id arxiv_https___arxiv_org_abs_2506_17529
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Revealing Quantum Information Encoded in Classical Images
Ainelkitane, Otmane
Recktenwall-Calvet, Brian
Iqbal, Aasma
Kuhn, Carlos C. N.
Quantum Physics
In this study, we investigate a simple quantum pre-processing filter kernel designed with only two CNOT gates for image feature extraction. We examine the impact of these filters when combined with a classical neural network for image classification tasks. Our main hypothesis is that this circuit can extract pixel correlation information that classical filters cannot. This approach is akin to a convolutional neural network, but with quantum layers replacing convolutional layers to extract spatial pixel entanglement. We found that a small circuit with just two CNOT gates can be engineered in three different spatial symmetries, each affecting classification differently. While the filter improves classification when combined with a simple, narrow network, it does not surpass complex classical methods. However, the filter demonstrates potential to enhance classification performance in more sophisticated architectures. Despite this, our empirical results show no clear correlation between the observed improvements and the level of entanglement in the quantum circuit, as measured by Von Neumann Entropy. The underlying cause of this improvement remains unclear and warrants further investigation.
title Revealing Quantum Information Encoded in Classical Images
topic Quantum Physics
url https://arxiv.org/abs/2506.17529