Hongzhi Li, Joseph G Ellis, Lei Zhang, Shih-Fu Chang. PatternNet: Visual Pattern Mining with Deep Neural Network. In Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval, Pages 291-299, 2018.
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Visual patterns represent the discernible regularity in the visual world. They capture the essential nature of visual objects or scenes. Understanding and modeling visual patterns is a fundamental problem in visual recognition that has wide ranging applications. In this paper, we study the problem of visual pattern mining and propose a novel deep neural network architecture called PatternNet for discovering these patterns that are both discriminative and representative. The proposed PatternNet leverages the filters in the last convolution layer of a convolutional neural network to find locally consistent visual patches, and by combining these filters we can effectively discover unique visual patterns. In addition, PatternNet can discover visual patterns efficiently without performing expensive image patch sampling, and this advantage provides an order of magnitude speedup compared to most other approaches. We evaluate the proposed PatternNet subjectively by showing randomly selected visual patterns which are discovered by our method and quantitatively by performing image classification with the identified visual patterns and comparing our performance with the current state-of-the-art. We also directly evaluate the quality of the discovered visual patterns by leveraging the identified patterns as proposed objects in an image and compare with other relevant methods. Our proposed network and procedure, PatterNet, is able to outperform competing methods for the tasks described
Hongzhi Li 
Joseph Ellis
Shih-Fu Chang
@InProceedings{li2018patternnet,
Author = {Li, Hongzhi and Ellis, Joseph G and Zhang, Lei and Chang, Shih-Fu},
Title = {PatternNet: Visual Pattern Mining with Deep Neural Network},
BookTitle = {Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval},
Pages = {291--299},
Year = {2018}
}
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