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相关论文: PhaSR: Generalized Image Shadow Removal with Physi…

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This project aims to adopt preprocessing operations to get less distortions for shadow image enlargement. The preprocessing operations consists of three main steps: first enlarge the original shadow image by using any kind of interpolation…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Raid R. Al-Nima , Ali N. Hamoodi , Radhwan Y. Al-Jawadi , Ziad S. Mohammad

3D Gaussian Splatting (3DGS) has shown impressive results for the novel view synthesis task, where lighting is assumed to be fixed. However, creating relightable 3D assets, especially for objects with ill-defined shapes (fur, fabric, etc.),…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Jiahui Fan , Fujun Luan , Jian Yang , Miloš Hašan , Beibei Wang

Photometric stereo, a problem of recovering 3D surface normals using images of an object captured under different lightings, has been of great interest and importance in computer vision research. Despite the success of existing traditional…

计算机视觉与模式识别 · 计算机科学 2022-08-31 Ashish Tiwari , Shanmuganathan Raman

We present a three-stage progressive shadow-removal pipeline for the CVPR2026 NTIRE WSRD+ challenge. Built on OmniSR, our method treats deshadowing as iterative direct refinement, where later stages correct residual artefacts left by…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Lorenzo Beltrame , Jules Salzinger , Filip Svoboda , Jasmin Lampert , Phillipp Fanta-Jende , Radu Timofte , Marco Körner

Deep learning has been recently shown to improve performance in the domain of synthetic aperture sonar (SAS) image classification. Given the constant resolution with range of a SAS, it is no surprise that deep learning techniques perform so…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Isaac D. Gerg , Vishal Monga

Removing shadows requires an understanding of both lighting conditions and object textures in a scene. Existing methods typically learn pixel-level color mappings between shadow and non-shadow images, in which the joint modeling of lighting…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Yuhao Liu , Zhanghan Ke , Ke Xu , Fang Liu , Zhenwei Wang , Rynson W. H. Lau

Image harmonization is a crucial technique in image composition that aims to seamlessly match the background by adjusting the foreground of composite images. Current methods adopt either global-level or pixel-level feature matching.…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Haoxing Chen , Yaohui Li , Zhangxuan Gu , Zhuoer Xu , Jun Lan , Huaxiong Li

Group sparse representation has shown promising results in image debulrring and image inpainting in GSR [3] , the main reason that lead to the success is by exploiting Sparsity and Nonlocal self-similarity (NSS) between patches on natural…

计算机视觉与模式识别 · 计算机科学 2022-12-23 Luoyu Chen , Fei Wu

Most face relighting methods are able to handle diffuse shadows, but struggle to handle hard shadows, such as those cast by the nose. Methods that propose techniques for handling hard shadows often do not produce geometrically consistent…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Andrew Hou , Michel Sarkis , Ning Bi , Yiying Tong , Xiaoming Liu

Moving target shadows among video synthetic aperture radar (Video-SAR) images are always interfered by low scattering backgrounds and cluttered noises, causing poor detec-tion-tracking accuracy. Thus, a shadow-background-noise 3D spatial…

计算机视觉与模式识别 · 计算机科学 2023-02-08 Xiaowo Xu , Xiaoling Zhang , Tianwen Zhang , Zhenyu Yang , Jun Shi , Xu Zhan

We propose Diff-Shadow, a global-guided diffusion model for shadow removal. Previous transformer-based approaches can utilize global information to relate shadow and non-shadow regions but are limited in their synthesis ability and recover…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Jinting Luo , Ru Li , Chengzhi Jiang , Xiaoming Zhang , Mingyan Han , Ting Jiang , Haoqiang Fan , Shuaicheng Liu

We propose a new approach for the image super-resolution (SR) task that progressively restores a high-resolution (HR) image from an input low-resolution (LR) image on the basis of a neural ordinary differential equation. In particular, we…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Seobin Park , Tae Hyun Kim

Casually-taken portrait photographs often suffer from unflattering lighting and shadowing because of suboptimal conditions in the environment. Aesthetic qualities such as the position and softness of shadows and the lighting ratio between…

计算机视觉与模式识别 · 计算机科学 2020-05-21 Xuaner Cecilia Zhang , Jonathan T. Barron , Yun-Ta Tsai , Rohit Pandey , Xiuming Zhang , Ren Ng , David E. Jacobs

Background Subtraction (BS) is one of the key steps in video analysis. Many background models have been proposed and achieved promising performance on public data sets. However, due to challenges such as illumination change, dynamic…

计算机视觉与模式识别 · 计算机科学 2015-04-16 Bo Xin , Yuan Tian , Yizhou Wang , Wen Gao

Implicit neural representation has opened up new possibilities for inverse rendering. However, existing implicit neural inverse rendering methods struggle to handle strongly illuminated scenes with significant shadows and indirect…

计算机视觉与模式识别 · 计算机科学 2023-11-22 Ziyi Yang , Yanzhen Chen , Xinyu Gao , Yazhen Yuan , Yu Wu , Xiaowei Zhou , Xiaogang Jin

Uncalibrated photometric stereo aims at estimating the 3D-shape of a surface, given a set of images captured from the same viewing angle, but under unknown, varying illumination. While the theoretical foundations of this inverse problem…

计算机视觉与模式识别 · 计算机科学 2020-09-18 Mohammed Brahimi , Yvain Quéau , Bjoern Haefner , Daniel Cremers

Surface reconstruction with preservation of geometric features is a challenging computer vision task. Despite significant progress in implicit shape reconstruction, state-of-the-art mesh extraction methods often produce aliased,…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Natalia Soboleva , Olga Gorbunova , Maria Ivanova , Evgeny Burnaev , Matthias Nießner , Denis Zorin , Alexey Artemov

Image denoising is the process of removing noise from noisy images, which is an image domain transferring task, i.e., from a single or several noise level domains to a photo-realistic domain. In this paper, we propose an effective image…

图像与视频处理 · 电气工程与系统科学 2019-06-05 Xianxu Hou , Hongming Luo , Jingxin Liu , Bolei Xu , Ke Sun , Yuanhao Gong , Bozhi Liu , Guoping Qiu

Learning-based image harmonization techniques are usually trained to undo synthetic random global transformations applied to a masked foreground in a single ground truth photo. This simulated data does not model many of the important…

计算机视觉与模式识别 · 计算机科学 2023-03-02 Ke Wang , Michaël Gharbi , He Zhang , Zhihao Xia , Eli Shechtman

Enhancing forward-looking sonar images is critical for accurate underwater target detection. Current deep learning methods mainly rely on supervised training with simulated data, but the difficulty in obtaining high-quality real-world…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Zhisheng Zhang , Peng Zhang , Fengxiang Wang , Liangli Ma , Fuchun Sun