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Video deblurring relies on leveraging information from other frames in the video sequence to restore the blurred regions in the current frame. Mainstream approaches employ bidirectional feature propagation, spatio-temporal transformers, or…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Huicong Zhang , Haozhe Xie , Hongxun Yao

Conventional adaptive bitrate (ABR) streaming systems typically rely on static bitrate ladders to optimize Quality of Experience (QoE). While operationally simple, this "one-size-fits-all" approach neglects content-specific characteristics,…

Image and Video Processing · Electrical Eng. & Systems 2026-05-18 Xin Xiong , Yixu Chen , Hai Wei , Yongjun Wu , Sriram Sethuraman

Diffusion models in image Super-Resolution (SR) treat all image regions uniformly, which risks compromising the overall image quality by potentially introducing artifacts during denoising of less-complex regions. To address this, we propose…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Brian B. Moser , Stanislav Frolov , Federico Raue , Sebastian Palacio , Andreas Dengel

Text-to-image diffusion models often memorize training data, revealing a fundamental failure to generalize beyond the training set. Current mitigation strategies typically sacrifice image quality or prompt alignment to reduce memorization.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Sathwik Karnik , Juyeop Kim , Sanmi Koyejo , Jong-Seok Lee , Somil Bansal

The quadratic complexity of standard attention mechanisms poses a significant scalability bottleneck for large language models (LLMs) in long-context scenarios. While hybrid attention strategies that combine sparse and full attention within…

Computation and Language · Computer Science 2026-01-29 Zecheng Tang , Quantong Qiu , Yi Yang , Zhiyi Hong , Haiya Xiang , Kebin Liu , Qingqing Dang , Juntao Li , Min Zhang

Image diffusion models are trained on independently sampled static images. While this is the bedrock task protocol in generative modeling, capturing the temporal world through the lens of static snapshots is information-deficient by design.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Juhun Lee , Simon S. Woo

Diffusion based approaches to long form text generation suffer from prohibitive computational cost and memory overhead as sequence length increases. We introduce SA-DiffuSeq, a diffusion framework that integrates sparse attention to…

Computation and Language · Computer Science 2025-12-25 Alexandros Christoforos , Chadbourne Davis

Sparse training has received an upsurging interest in machine learning due to its tantalizing saving potential for the entire training process as well as inference. Dynamic sparse training (DST), as a leading sparse training approach, can…

Machine Learning · Computer Science 2023-11-13 Lu Yin , Gen Li , Meng Fang , Li Shen , Tianjin Huang , Zhangyang Wang , Vlado Menkovski , Xiaolong Ma , Mykola Pechenizkiy , Shiwei Liu

The scalability of high-fidelity video diffusion models (VDMs) is constrained by two key sources of redundancy: the quadratic complexity of global spatio-temporal attention and the computational overhead of long iterative denoising…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Xinjian Wu , Hongmei Wang , Yuan Zhou , Qinglin Lu

Dynamic sparse attention (DSA) reduces the per-token attention bandwidth by restricting computation to a top-k subset of cached key-value (KV) entries, but its token-dependent selection pattern introduces a system-level challenge: the KV…

Hardware Architecture · Computer Science 2026-03-17 Noam Levy

Blind super-resolution methods based on stable diffusion showcase formidable generative capabilities in reconstructing clear high-resolution images with intricate details from low-resolution inputs. However, their practical applicability is…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Rui Xie , Chen Zhao , Kai Zhang , Zhenyu Zhang , Jun Zhou , Jian Yang , Ying Tai

Diffusion Transformers (DiTs) have revolutionized high-fidelity video generation, yet their $\mathcal{O}(L^2)$ attention complexity poses a formidable bottleneck for long-sequence synthesis. While recent sparse-linear attention hybrids aim…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Yuxi Liu , Zekun Zhang , Yixiang Cai , Renjia Deng , Yutong He , Kun Yuan

Multivariate time series anomaly detection (MTSAD) aims to accurately identify and localize complex abnormal patterns in the large-scale industrial control systems. While existing approaches excel in recognizing the distinct patterns under…

Machine Learning · Computer Science 2025-12-17 Xuechun Liu , Heli Sun , Xuecheng Wu , Ruichen Cao , Yunyun Shi , Dingkang Yang , Haoran Li

Dynamic streams from news feeds, social media, sensor networks, and financial markets challenge static RAG frameworks. Full-scale indices incur high memory costs; periodic rebuilds introduce latency that undermines data freshness; naive…

Information Retrieval · Computer Science 2025-08-11 Yuzhou Zhu

Diffusion models have demonstrated impressive performance in various image generation, editing, enhancement and translation tasks. In particular, the pre-trained text-to-image stable diffusion models provide a potential solution to the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Tao Yang , Rongyuan Wu , Peiran Ren , Xuansong Xie , Lei Zhang

Diffusion Policy has dominated action generation due to its strong capabilities for modeling multi-modal action distributions, but its multi-step denoising processes make it impractical for real-time visuomotor control. Existing…

Robotics · Computer Science 2026-05-18 Kangye Ji , Jianbo Zhou , Yuan Meng , Ye Li , Hanyun Cui , Zhi Wang

Deep spatiotemporal models are used in a variety of computer vision tasks, such as action recognition and video object segmentation. Currently, there is a limited understanding of what information is captured by these models in their…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Matthew Kowal , Mennatullah Siam , Md Amirul Islam , Neil D. B. Bruce , Richard P. Wildes , Konstantinos G. Derpanis

Dynamic adaptive streaming over HTTP (DASH) has recently been widely deployed in the Internet and adopted in the industry. It, however, does not impose any adaptation logic for selecting the quality of video fragments requested by clients…

Multimedia · Computer Science 2017-11-07 Chao Zhou , Chia-Wen Lin , Xinggong Zhang , Zongming Guo

Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets, and transparent data fusion. We propose an end-to-end…

Signal Processing · Electrical Eng. & Systems 2026-01-07 Mina Shahbazifar , Zolfa Zeinalpour-Yazdi , Matthias Hollick , Arash Asadi , Vahid Jamali

End-to-end autonomous driving systems promise stronger performance through unified optimization of perception, motion forecasting, and planning. However, vision-based approaches face fundamental limitations in adverse weather conditions,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Philipp Wolters , Johannes Gilg , Torben Teepe , Gerhard Rigoll
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