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Diffusion-based image super-resolution (SR) has recently attracted significant attention by leveraging the expressive power of large pre-trained text-to-image diffusion models (DMs). A central practical challenge is resolving the trade-off…

图像与视频处理 · 电气工程与系统科学 2026-01-26 Maxence Noble , Gonzalo Iñaki Quintana , Benjamin Aubin , Clément Chadebec

Dense semantic forecasting anticipates future events in video by inferring pixel-level semantics of an unobserved future image. We present a novel approach that is applicable to various single-frame architectures and tasks. Our approach…

计算机视觉与模式识别 · 计算机科学 2022-01-06 Josip Šarić , Sacha Vražić , Siniša Šegvić

The key success of existing video super-resolution (VSR) methods stems mainly from exploring spatial and temporal information, which is usually achieved by a recurrent propagation module with an alignment module. However, inaccurate…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Hao Li , Xiang Chen , Jiangxin Dong , Jinhui Tang , Jinshan Pan

Visual Odometry (VO) is used in many applications including robotics and autonomous systems. However, traditional approaches based on feature matching are computationally expensive and do not directly address failure cases, instead relying…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Nimet Kaygusuz , Oscar Mendez , Richard Bowden

In recent times, learning-based methods for video deraining have demonstrated commendable results. However, there are two critical challenges that these methods are yet to address: exploiting temporal correlations among adjacent frames and…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Xinwei Xue , Jia He , Long Ma , Xiangyu Meng , Wenlin Li , Risheng Liu

Flow image super-resolution (FISR) aims at recovering high-resolution turbulent velocity fields from low-resolution flow images. Existing FISR methods mainly process the flow images in natural image patterns, while the critical and distinct…

图像与视频处理 · 电气工程与系统科学 2024-01-30 Qinglong Cao , Zhengqin Xu , Chao Ma , Xiaokang Yang , Yuntian Chen

Arbitrary-resolution image generation still remains a challenging task in AIGC, as it requires handling varying resolutions and aspect ratios while maintaining high visual quality. Existing transformer-based diffusion methods suffer from…

计算机视觉与模式识别 · 计算机科学 2024-10-31 Shuai Wang , Zexian Li , Tianhui Song , Xubin Li , Tiezheng Ge , Bo Zheng , Limin Wang

3D Gaussian Splatting (3DGS) has achieved excellent rendering quality with fast training and rendering speed. However, its optimization process lacks explicit geometric constraints, leading to suboptimal geometric reconstruction in regions…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Lin-Zhuo Chen , Kangjie Liu , Youtian Lin , Siyu Zhu , Zhihao Li , Xun Cao , Yao Yao

In deep learning, it is usually assumed that the optimization process is conducted on a shape-fixed loss surface. Differently, we first propose a novel concept of deformation mapping in this paper to affect the behaviour of the optimizer.…

机器学习 · 计算机科学 2020-09-18 Liangming Chen , Long Jin , Xiujuan Du , Shuai Li , Mei Liu

The fractional advection-dispersion equation (FADE) has attracted increased attention from researchers as it provides an accurate description for challenging phenomenas with long-range time memory and spatial interactions, such as the…

数值分析 · 数学 2019-02-12 Huan Liu , Hong Wang , Xiangcheng Zheng

Exploiting similar and sharper scene patches in spatio-temporal neighborhoods is critical for video deblurring. However, CNN-based methods show limitations in capturing long-range dependencies and modeling non-local self-similarity. In this…

图像与视频处理 · 电气工程与系统科学 2022-05-31 Jing Lin , Yuanhao Cai , Xiaowan Hu , Haoqian Wang , Youliang Yan , Xueyi Zou , Henghui Ding , Yulun Zhang , Radu Timofte , Luc Van Gool

The past decade has witnessed significant progress on detecting objects in aerial images that are often distributed with large scale variations and arbitrary orientations. However most of existing methods rely on heuristically defined…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Jiaming Han , Jian Ding , Jie Li , Gui-Song Xia

Semi-supervised video object segmentation (VOS) aims to segment a few moving objects in a video sequence, where these objects are specified by annotation of first frame. The optical flow has been considered in many existing semi-supervised…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Ziyang Liu , Jingmeng Liu , Weihai Chen , Xingming Wu , Zhengguo Li

In this paper, we propose a deformable convolution-based generative adversarial network (DCNGAN) for perceptual quality enhancement of compressed videos. DCNGAN is also adaptive to the quantization parameters (QPs). Compared with optical…

图像与视频处理 · 电气工程与系统科学 2022-01-31 Saiping Zhang , Luis Herranz , Marta Mrak , Marc Gorriz Blanch , Shuai Wan , Fuzheng Yang

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…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Lingshun Kong , Jiangxin Dong , Mingqiang Li , Jianjun Ge , Jinshan Pan

This paper addresses the challenge of fine-grained alignment in Vision-and-Language Navigation (VLN) tasks, where robots navigate realistic 3D environments based on natural language instructions. Current approaches use contrastive learning…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yuhang Song , Mario Gianni , Chenguang Yang , Kunyang Lin , Te-Chuan Chiu , Anh Nguyen , Chun-Yi Lee

Video super-resolution (VSR) aims to enhance low-resolution videos by leveraging both spatial and temporal information. While deep learning has led to impressive progress, it typically requires centralized data, which raises privacy…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Ali Mollaahmadi Dehaghi , Hossein KhademSohi , Reza Razavi , Steve Drew , Mohammad Moshirpour

Rapid and low power computation of optical flow (OF) is potentially useful in robotics. The dynamic vision sensor (DVS) event camera produces quick and sparse output, and has high dynamic range, but conventional OF algorithms are…

计算机视觉与模式识别 · 计算机科学 2017-06-20 Min Liu , Tobi Delbruck

The main challenge of Multiple Object Tracking (MOT) is the efficiency in associating indefinite number of objects between video frames. Standard motion estimators used in tracking, e.g., Long Short Term Memory (LSTM), only deal with single…

计算机视觉与模式识别 · 计算机科学 2019-05-08 Jimuyang Zhang , Sanping Zhou , Jinjun Wang , Dong Huang

Previous video object segmentation approaches mainly focus on using simplex solutions between appearance and motion, limiting feature collaboration efficiency among and across these two cues. In this work, we study a novel and efficient…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Ge-Peng Ji , Deng-Ping Fan , Keren Fu , Zhe Wu , Jianbing Shen , Ling Shao