Quantum machine learning for image classification

Abstract

Image classification, a pivotal task in multiple industries, faces computational challenges due to the burgeoning volume of visual data. This research addresses these challenges by introducing two Quantum Machine Learning models that leverage the principles of quantum mechanics for effective computations. Our first model, a Hybrid Quantum Neural Network with parallel quantum circuits, enables the execution of computations even in the Noisy Intermediate-Scale Quantum era, where circuits with a large number of qubits are currently infeasible. This model demonstrated a record-breaking classification accuracy of 99.21% on the full MNIST dataset, surpassing the performance of known quantum-classical models, while having eight times fewer parameters than its classical counterpart. Also, the results of testing this hybrid model on a Medical MNIST (classification accuracy over 99%), and on CIFAR-10 (classification accuracy over 82%), can serve as evidence of the generalizability of the model and highlights the efficiency of quantum layers in distinguishing common features of input data. Our second model introduces a Hybrid Quantum Neural Network with a Quanvolutional layer, reducing image resolution via a convolution process. The model matches the performance of its classical counterpart, having four times fewer trainable parameters, and outperforms a classical model with equal weight parameters. These models represent advancements in quantum machine learning research and illuminate the path towards more accurate image classification systems.

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“…Many traditionally important machine learning domains are also getting potential benefits from utilizing quantum technologies, e.g. in image processing [36][37][38][39] and natural language processing [40][41][42][43]. Solving nonlinear differential equations is also an application area for quantum algorithms that use differentiable quantum circuits [44,45] and quantum kernels [46].…”

Hybrid Quantum Image Classification and Federated Learning for Hepatic Steatosis Diagnosis

“…By operating within an exponentially large search space, these algorithms can achieve enhanced efficiency in pattern recognition and prediction [ 24 , 25 , 26 , 27 ]. Recent advancements in quantum and quantum-inspired computing have shown further possibilities for refining and enhancing classical machine learning techniques [ 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. In particular, HQNNs have garnered attention for their applications across industries [ 35 , 36 ].…”