Results 11 to 20 of about 9,784,899 (249)
Photoionization in the time and frequency domain [PDF]
Science, 2017 Ultrafast processes in matter, such as the electron emission following light absorption, can now be studied using ultrashort light pulses of attosecond duration ($10^{-18}$s) in the extreme ultraviolet spectral range.
Arnold, C. L. +13 more
core +2 more sources
Efficient Frequency Domain-based Transformers for High-Quality Image Deblurring [PDF]
Computer Vision and Pattern Recognition, 2022 We present an effective and efficient method that explores the properties of Transformers in the frequency domain for high-quality image deblurring. Our method is motivated by the convolution theorem that the correlation or convolution of two signals in ...
Lingshun Kong +4 more
semanticscholar +1 more source
Frequency Domain Model Augmentation for Adversarial Attack [PDF]
European Conference on Computer Vision, 2022 . For black-box attacks, the gap between the substitute model and the victim model is usually large, which manifests as a weak attack performance. Motivated by the observation that the transferability of adversarial examples can be improved by attacking ...
Yuyang Long +6 more
semanticscholar +1 more source
Spatial-Phase Shallow Learning: Rethinking Face Forgery Detection in Frequency Domain [PDF]
Computer Vision and Pattern Recognition, 2021 The remarkable success in face forgery techniques has received considerable attention in computer vision due to security concerns. We observe that up-sampling is a necessary step of most face forgery techniques, and cumulative up-sampling will result in ...
Honggu Liu +7 more
semanticscholar +1 more source
PoseFormerV2: Exploring Frequency Domain for Efficient and Robust 3D Human Pose Estimation [PDF]
Computer Vision and Pattern Recognition, 2023 Recently, transformer-based methods have gained significant success in sequential 2D-to-3D lifting human pose estimation. As a pioneering work, PoseFormer captures spatial relations of human joints in each video frame and human dynamics across frames ...
Qi-jun Zhao +4 more
semanticscholar +1 more source
Realtime Robust Malicious Traffic Detection via Frequency Domain Analysis [PDF]
Conference on Computer and Communications Security, 2021 Machine learning (ML) based malicious traffic detection is an emerging security paradigm, particularly for zero-day attack detection, which is complementary to existing rule based detection. However, the existing ML based detection achieves low detection
Chuanpu Fu, Qi Li, Meng Shen, Ke Xu
semanticscholar +1 more source
Domain Generalization via Frequency-domain-based Feature Disentanglement and Interaction [PDF]
ACM Multimedia, 2022 Adaptation to out-of-distribution data is a meta-challenge for all statistical learning algorithms that strongly rely on the i.i.d. assumption. It leads to unavoidable labor costs and confidence crises in realistic applications.
Jing-Yi Wang +4 more
semanticscholar +1 more source
Learning in the Frequency Domain [PDF]
Computer Vision and Pattern Recognition, 2020 Deep neural networks have achieved remarkable success in computer vision tasks. Existing neural networks mainly operate in the spatial domain with fixed input sizes.
Kai Xu +5 more
semanticscholar +1 more source
FedDG: Federated Domain Generalization on Medical Image Segmentation via Episodic Learning in Continuous Frequency Space [PDF]
Computer Vision and Pattern Recognition, 2021 Federated learning allows distributed medical institutions to collaboratively learn a shared prediction model with privacy protection. While at clinical deployment, the models trained in federated learning can still suffer from performance drop when ...
Quande Liu +4 more
semanticscholar +1 more source
BLACKSMITH: Scalable Rowhammering in the Frequency Domain
IEEE Symposium on Security and Privacy, 2022 We present the new class of non-uniform Rowhammer access patterns that bypass undocumented, proprietary in-DRAM Target Row Refresh (TRR) while operating in a production setting. We show that these patterns trigger bit flips on all 40 DDR4 DRAM devices in
Patrick Jattke +4 more
semanticscholar +1 more source