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Low-dose CT (LDCT) images are often accompanied by significant noise, which negatively impacts image quality and subsequent diagnostic accuracy. To address the challenges of multi-scale feature fusion and diverse noise distribution patterns…

图像与视频处理 · 电气工程与系统科学 2025-05-20 Zhiting Zheng , Shuqi Wu , Wen Ding

The portrait matting task aims to extract an alpha matte with complete semantics and finely-detailed contours. In comparison to CNN-based approaches, transformers with self-attention module have a better capacity to capture long-range…

计算机视觉与模式识别 · 计算机科学 2023-12-04 Zitao Wang , Qiguang Miao , Peipei Zhao , Yue Xi

Due to the computational complexity of self-attention (SA), prevalent techniques for image deblurring often resort to either adopting localized SA or employing coarse-grained global SA methods, both of which exhibit drawbacks such as…

计算机视觉与模式识别 · 计算机科学 2024-07-25 Xintian Mao , Jiansheng Wang , Xingran Xie , Qingli Li , Yan Wang

Reconstructing physical field tensors from \textit{in situ} observations, such as radio maps and ocean sound speed fields, is crucial for enabling environment-aware decision making in various applications, e.g., wireless communications and…

信号处理 · 电气工程与系统科学 2025-06-16 Panqi Chen , Siyuan Li , Lei Cheng , Xiao Fu , Yik-Chung Wu , Sergios Theodoridis

Previous methods for dynamic facial expression in the wild are mainly based on Convolutional Neural Networks (CNNs), whose local operations ignore the long-range dependencies in videos. To solve this problem, we propose the spatio-temporal…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Fuyan Ma , Bin Sun , Shutao Li

We propose PSFormer, an effective point transformer model for 3D salient object detection. PSFormer is an encoder-decoder network that takes full advantage of transformers to model the contextual information in both multi-scale point- and…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Baian Chen , Lipeng Gu , Xin Zhuang , Yiyang Shen , Weiming Wang , Mingqiang Wei

Learning representations on large graphs is a long-standing challenge due to the inter-dependence nature. Transformers recently have shown promising performance on small graphs thanks to its global attention for capturing all-pair…

机器学习 · 计算机科学 2024-09-16 Qitian Wu , Kai Yang , Hengrui Zhang , David Wipf , Junchi Yan

Transformers, with their self-attention mechanisms for modeling long-range dependencies, have become a dominant paradigm in image restoration tasks. However, the high computational cost of self-attention limits scalability to…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Hanzhou Liu , Binghan Li , Chengkai Liu , Mi Lu

Image captioning aims to automatically generate a natural language description of a given image, and most state-of-the-art models have adopted an encoder-decoder framework. The framework consists of a convolution neural network (CNN)-based…

计算机视觉与模式识别 · 计算机科学 2019-05-21 Jun Yu , Jing Li , Zhou Yu , Qingming Huang

We present a High-Resolution Transformer (HRFormer) that learns high-resolution representations for dense prediction tasks, in contrast to the original Vision Transformer that produces low-resolution representations and has high memory and…

计算机视觉与模式识别 · 计算机科学 2021-11-09 Yuhui Yuan , Rao Fu , Lang Huang , Weihong Lin , Chao Zhang , Xilin Chen , Jingdong Wang

Face clustering is a useful tool for applications like automatic face annotation and retrieval. The main challenge is that it is difficult to cluster images from the same identity with different face poses, occlusions, and image quality.…

计算机视觉与模式识别 · 计算机科学 2021-04-26 Jinxing Ye , Xioajiang Peng , Baigui Sun , Kai Wang , Xiuyu Sun , Hao Li , Hanqing Wu

Optical high-resolution imagery and OSM data are two important data sources of change detection (CD). Previous related studies focus on utilizing the information in OSM data to aid the CD on optical high-resolution images. This paper…

计算机视觉与模式识别 · 计算机科学 2024-06-27 Hongruixuan Chen , Cuiling Lan , Jian Song , Clifford Broni-Bediako , Junshi Xia , Naoto Yokoya

The global and local contexts significantly contribute to the integrity of predictions in Salient Object Detection (SOD). Unfortunately, existing methods still struggle to generate complete predictions with fine details. There are two major…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Yi Ke Yun , Weisi Lin

This work introduces a Transformer-based image compression system. It has the flexibility to switch between the standard image reconstruction and the denoising reconstruction from a single compressed bitstream. Instead of training separate…

图像与视频处理 · 电气工程与系统科学 2024-02-21 Yi-Hsin Chen , Kuan-Wei Ho , Shiau-Rung Tsai , Guan-Hsun Lin , Alessandro Gnutti , Wen-Hsiao Peng , Riccardo Leonardi

Convolutional neural networks (CNNs) have been the consensus for medical image segmentation tasks. However, they suffer from the limitation in modeling long-range dependencies and spatial correlations due to the nature of convolution…

计算机视觉与模式识别 · 计算机科学 2023-01-10 Moein Heidari , Amirhossein Kazerouni , Milad Soltany , Reza Azad , Ehsan Khodapanah Aghdam , Julien Cohen-Adad , Dorit Merhof

Compared to CNN-based methods, Transformer-based methods achieve impressive image restoration outcomes due to their abilities to model remote dependencies. However, how to apply Transformer-based methods to the field of blind…

计算机视觉与模式识别 · 计算机科学 2023-10-09 Qingguo Liu , Pan Gao , Kang Han , Ningzhong Liu , Wei Xiang

Domain-generalized urban-scene semantic segmentation (USSS) aims to learn generalized semantic predictions across diverse urban-scene styles. Unlike domain gap challenges, USSS is unique in that the semantic categories are often similar in…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Qi Bi , Shaodi You , Theo Gevers

Matching visible and near-infrared (NIR) images remains a significant challenge in remote sensing image fusion. The nonlinear radiometric differences between heterogeneous remote sensing images make the image matching task even more…

计算机视觉与模式识别 · 计算机科学 2024-05-01 Wang Zhang , Tingting Li , Yuntian Zhang , Gensheng Pei , Xiruo Jiang , Yazhou Yao

Visual Grounding aims to localize the referring object in an image given a natural language expression. Recent advancements in DETR-based visual grounding methods have attracted considerable attention, as they directly predict the…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Yabing Wang , Zhuotao Tian , Qingpei Guo , Zheng Qin , Sanping Zhou , Ming Yang , Le Wang

Accurate 3D shape abstraction from a single 2D image is a long-standing problem in computer vision and graphics. By leveraging a set of primitives to represent the target shape, recent methods have achieved promising results. However, these…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Di Liu , Xiang Yu , Meng Ye , Qilong Zhangli , Zhuowei Li , Zhixing Zhang , Dimitris N. Metaxas