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Transformers are widely used in computer vision areas and have achieved remarkable success. Most state-of-the-art approaches split images into regular grids and represent each grid region with a vision token. However, fixed token…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Wang Zeng , Sheng Jin , Lumin Xu , Wentao Liu , Chen Qian , Wanli Ouyang , Ping Luo , Xiaogang Wang

Aerial Image Segmentation is a top-down perspective semantic segmentation and has several challenging characteristics such as strong imbalance in the foreground-background distribution, complex background, intra-class heterogeneity,…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Kashu Yamazaki , Taisei Hanyu , Minh Tran , Adrian de Luis , Roy McCann , Haitao Liao , Chase Rainwater , Meredith Adkins , Jackson Cothren , Ngan Le

Due to adverse atmospheric and imaging conditions, natural images suffer from various degradation phenomena. Consequently, image restoration has emerged as a key solution and garnered substantial attention. Although recent Transformer…

图像与视频处理 · 电气工程与系统科学 2025-05-12 Xingyu Jiang , Ning Gao , Xiuhui Zhang , Hongkun Dou , Shaowen Fu , Xiaoqing Zhong , Hongjue Li , Yue Deng

Efficient video action recognition remains a challenging problem. One large model after another takes the place of the state-of-the-art on the Kinetics dataset, but real-world efficiency evaluations are often lacking. In this work, we fill…

计算机视觉与模式识别 · 计算机科学 2021-11-19 Raivo Koot , Haiping Lu

Region proposal based methods like R-CNN and Faster R-CNN models have proven to be extremely successful in object detection and segmentation tasks. Recently, Transformers have also gained popularity in the domain of Computer Vision, and are…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Deepanshu Pandey , Pradyumna Gupta , Sumit Bhattacharya , Aman Sinha , Rohit Agarwal

While Transformer has achieved remarkable performance in various high-level vision tasks, it is still challenging to exploit the full potential of Transformer in image restoration. The crux lies in the limited depth of applying Transformer…

计算机视觉与模式识别 · 计算机科学 2021-12-09 Haobo Ji , Xin Feng , Wenjie Pei , Jinxing Li , Guangming Lu

Differentiable rendering has received increasing interest for image-based inverse problems. It can benefit traditional optimization-based solutions to inverse problems, but also allows for self-supervision of learning-based approaches for…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Linjie Lyu , Marc Habermann , Lingjie Liu , Mallikarjun B R , Ayush Tewari , Christian Theobalt

Illumination effects in images, specifically cast shadows and shading, have been shown to decrease the performance of deep neural networks on a large number of vision-based detection, recognition and segmentation tasks in urban driving…

计算机视觉与模式识别 · 计算机科学 2019-09-27 Alexandra Carlson , Ram Vasudevan , Matthew Johnson-Roberson

Text-to-image diffusion models excel at generating diverse portraits, but lack intuitive shadow control. Existing editing approaches, as post-processing, struggle to offer effective manipulation across diverse styles. Additionally, these…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Haoming Cai , Tsung-Wei Huang , Shiv Gehlot , Brandon Y. Feng , Sachin Shah , Guan-Ming Su , Christopher Metzler

Collimation in X-ray imaging restricts exposure to the region-of-interest (ROI) and minimizes the radiation dose applied to the patient. The detection of collimator shadows is an essential image-based preprocessing step in digital…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Benjamin El-Zein , Dominik Eckert , Andreas Fieselmann , Christopher Syben , Ludwig Ritschl , Steffen Kappler , Sebastian Stober

Recently, a variety of vision transformers have been developed as their capability of modeling long-range dependency. In current transformer-based backbones for medical image segmentation, convolutional layers were replaced with pure…

计算机视觉与模式识别 · 计算机科学 2022-08-01 Huimin Huang , Shiao Xie1 , Lanfen Lin , Yutaro Iwamoto , Xianhua Han , Yen-Wei Chen , Ruofeng Tong

Degraded images commonly exist in the general sources of character images, leading to unsatisfactory character recognition results. Existing methods have dedicated efforts to restoring degraded character images. However, the denoising…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Daqian Shi , Xiaolei Diao , Lida Shi , Hao Tang , Yang Chi , Chuntao Li , Hao Xu

Transformer-based Single Image Deraining (SID) methods have achieved remarkable success, primarily attributed to their robust capability in capturing long-range interactions. However, we've noticed that current methods handle rain-affected…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Baiang Li , Zhao Zhang , Huan Zheng , Xiaogang Xu , Yanyan Wei , Jingyi Zhang , Jicong Fan , Meng Wang

Blind face restoration is a highly ill-posed problem that often requires auxiliary guidance to 1) improve the mapping from degraded inputs to desired outputs, or 2) complement high-quality details lost in the inputs. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Shangchen Zhou , Kelvin C. K. Chan , Chongyi Li , Chen Change Loy

Transformer, as a strong and flexible architecture for modelling long-range relations, has been widely explored in vision tasks. However, when used in video inpainting that requires fine-grained representation, existed method still suffers…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Rui Liu , Hanming Deng , Yangyi Huang , Xiaoyu Shi , Lewei Lu , Wenxiu Sun , Xiaogang Wang , Jifeng Dai , Hongsheng Li

Recent advances in face super-resolution research have utilized the Transformer architecture. This method processes the input image into a series of small patches. However, because of the strong correlation between different facial…

计算机视觉与模式识别 · 计算机科学 2025-02-19 Chao Yang , Yong Fan , Cheng Lu , Minghao Yuan , Zhijing Yang

Portrait images often suffer from undesirable shadows cast by casual objects or even the face itself. While existing methods for portrait shadow removal require training on a large-scale synthetic dataset, we propose the first unsupervised…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Yingqing He , Yazhou Xing , Tianjia Zhang , Qifeng Chen

Image Super-Resolution (SR) aims to recover a high-resolution image from its low-resolution counterpart, which has been affected by a specific degradation process. This is achieved by enhancing detail and visual quality. Recent advancements…

计算机视觉与模式识别 · 计算机科学 2025-01-15 Debasish Dutta , Deepjyoti Chetia , Neeharika Sonowal , Sanjib Kr Kalita

We present a diffusion-based portrait shadow removal approach that can robustly produce high-fidelity results. Unlike previous methods, we cast shadow removal as diffusion-based inpainting. To this end, we first train a shadow-independent…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Wanchang Yu , Qing Zhang , Rongjia Zheng , Wei-Shi Zheng

Image restoration in adverse weather conditions is a difficult task in computer vision. In this paper, we propose a novel transformer-based framework called GridFormer which serves as a backbone for image restoration under adverse weather…

计算机视觉与模式识别 · 计算机科学 2024-06-24 Tao Wang , Kaihao Zhang , Ziqian Shao , Wenhan Luo , Bjorn Stenger , Tong Lu , Tae-Kyun Kim , Wei Liu , Hongdong Li