Quantum Visual Feature Encoding Revisited

• URL: http://arxiv.org/abs/2405.19725v2
• Date: Tue, 20 Aug 2024 06:19:27 GMT
• Title: Quantum Visual Feature Encoding Revisited
• Authors: Xuan-Bac Nguyen, Hoang-Quan Nguyen, Hugh Churchill, Samee U. Khan, Khoa Luu,
• Abstract summary: This paper revisits the quantum visual encoding strategies, the initial step in quantum machine learning. Investigating the root cause, we uncover that the existing quantum encoding design fails to ensure information preservation of the visual features after the encoding process. We introduce a new loss function named Quantum Information Preserving to minimize this gap, resulting in enhanced performance of quantum machine learning algorithms.
• Score: 8.839645003062456
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Although quantum machine learning has been introduced for a while, its applications in computer vision are still limited. This paper, therefore, revisits the quantum visual encoding strategies, the initial step in quantum machine learning. Investigating the root cause, we uncover that the existing quantum encoding design fails to ensure information preservation of the visual features after the encoding process, thus complicating the learning process of the quantum machine learning models. In particular, the problem, termed "Quantum Information Gap" (QIG), leads to a gap of information between classical and corresponding quantum features. We provide theoretical proof and practical demonstrations of that found and underscore the significance of QIG, as it directly impacts the performance of quantum machine learning algorithms. To tackle this challenge, we introduce a simple but efficient new loss function named Quantum Information Preserving (QIP) to minimize this gap, resulting in enhanced performance of quantum machine learning algorithms. Extensive experiments validate the effectiveness of our approach, showcasing superior performance compared to current methodologies and consistently achieving state-of-the-art results in quantum modeling.

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