Recognizing The Artistic Style Of Fine Art Paintings With Deep Learning For An Augmented Reality Application

Résumé: The rapid digitalization of artwork collections in libraries, museums, galleries, and art centers has resulted in a growing interest in developing autonomous systems capable of understanding art concepts and categorizing fine art paintings as it became difficult to manually manipulate the content of these collections. However, the task of automatic categorization comes with significant challenges due to the subjective interpretation and perception of art elements and the reliance on accurate annotations provided by art experts. As in recent years, deep learning approaches and computer vision techniques have shown remarkable performance in automating painting classification; this research aims to develop efficient deep learning systems that can automatically classify the artistic style of fine-art paintings. In this thesis, we investigate the effectiveness of seven pre-trained EfficientNet models for identifying the style of a painting and propose custom models based on pre-trained EfficientNet architectures. In addition, we analyzed the impact of deep retraining the last eight layers on the performance of the custom models. The experimental results on the standard fine art painting classification dataset, Painting-91 indicate that deep retraining of the last eight layers of the custom models yields the best performance, achieving a 5% improvement compared to the base models. This demonstrates the effectiveness of leveraging pre-trained EfficientNet models for automatic artistic style identification in paintings. Moreover, the study presents a framework that compares the performance of six pre-trained convolutional neural networks (Xception, ResNet50, InceptionV3, InceptionResNetV2, DenseNet121, and EfficientNet B3) for identifying artistic styles in paintings. Notably, Xception architecture is employed for this purpose for the first time. Furthermore, the impact of different optimizers (SGD, RMSprop, and Adam) and two learning rates (1e-2 and 1e-4) on model performance is studied using transfer learning. The experiments on two different art classification datasets, Pandora18k and Painting-91 revealed that InceptionResNetV2 achieves the highest accuracy for style classification on both datasets when trained with the Adam optimizer and a learning rate of 1e-4. Integrating deep learning algorithms and transfer learning techniques into fine art painting analysis and classification offers promising avenues for automating style identification tasks. The proposed models and findings contribute to the development of automatic methods that enable the art community to efficiently analyze and categorize the vast number of digital paintings available on the internet.

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