Name
Abstract | ||
|---|---|---|
Due to the domain shift problem, the deep learning models trained on one domain often fail to generalize well on others. Researchers formulated such a realistic-yet-challenging scenario as a new research line, termed single domain generalization (single-DG), which aims to generalize a model trained on single source domain to multiple target domains. The existing single-DG approaches tried to address the problem by generating diverse samples using extra trainable network modules. However, due to the limited amount of medical data, the extra network parameters are difficult to train. The generated samples are often failed to achieve satisfactory effect for improving model generalization. In this paper, we propose a simple-yet-effective Fourier-based approach, which augments data via spontaneous Amplitude SPECTrum diverSification (ASPECTS), for single domain generalization. Concretely, the proposed approach first converts the image into frequency domain using the Fourier transform, and then spontaneously generates diverse samples by editing the amplitude spectrum using a pool of randomization operations. The proposed approach is established upon the assumption that the high-level semantic information (domain-invariant) is embedded in the phase spectrum of images after Fourier transform, while the amplitude spectrum mainly contains the domain-variant information. We evaluate the proposed ASPECTS approach on both publicly available and private multi-domain datasets. Compared to the existing single-DG approaches, our method is much easier to implement (i.e., without training of extra network modules) and yields the superior improvement. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1007/978-3-031-16876-5_4 | RESOURCE-EFFICIENT MEDICAL IMAGE ANALYSIS, REMIA 2022 |
Keywords | DocType | Volume |
Single domain generalization, Data augmentation, Frequency domain | Conference | 13543 |
ISSN | Citations | PageRank |
0302-9743 | 0 | 0.34 |
References | Authors | |
0 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yuexiang Li | 1 | 0 | 1.69 |
| Nanjun He | 2 | 0 | 0.34 |
| Yawen Huang | 3 | 0 | 0.68 |