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Document rectification in real-world scenarios poses significant challenges due to extreme variations in camera perspectives and physical distortions. Driven by the insight that complex transformations can be decomposed and resolved…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Chaoyun Wang , Quanxin Huang , I-Chao Shen , Takeo Igarashi , Nanning Zheng , Caigui Jiang

We introduce Gaussian-enhanced Surfels (GESs), a bi-scale representation for radiance field rendering, wherein a set of 2D opaque surfels with view-dependent colors represent the coarse-scale geometry and appearance of scenes, and a few 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Keyang Ye , Tianjia Shao , Kun Zhou

Radar Cross Section measurement data is often analyzed using Inverse Synthetic Aperture Radar images. This paper compares backprojection and iterative smooth reweighted $\ell_1$-minimization as methods to analyze radar cross section…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Christer Larsson

Existing methods for single image super-resolution (SR) are typically evaluated with synthetic degradation models such as bicubic or Gaussian downsampling. In this paper, we investigate SR from the perspective of camera lenses, named as…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Chang Chen , Zhiwei Xiong , Xinmei Tian , Zheng-Jun Zha , Feng Wu

Event-based cameras can measure intensity changes (called `{\it events}') with microsecond accuracy under high-speed motion and challenging lighting conditions. With the active pixel sensor (APS), the event camera allows simultaneous output…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Liyuan Pan , Cedric Scheerlinck , Xin Yu , Richard Hartley , Miaomiao Liu , Yuchao Dai

Given an image, we wish to produce an image of larger size with significantly more pixels and higher image quality. This is generally known as the Single Image Super-Resolution (SISR) problem. The idea is that with sufficient training data…

Computer Vision and Pattern Recognition · Computer Science 2016-10-06 Yaniv Romano , John Isidoro , Peyman Milanfar

Super-resolution (SR) techniques make use of subpixel shifts between frames in an image sequence to yield higher-resolution images. We propose an original observation model devoted to the case of non isometric inter-frame motion as…

Applications · Statistics 2015-05-14 G. Rochefort , F. Champagnat , G. Le Besnerais , J. -F. Giovannelli

Generative models transform random noise into images; their inversion aims to transform images back to structured noise for recovery and editing. This paper addresses two key tasks: (i) inversion and (ii) editing of a real image using…

Machine Learning · Computer Science 2024-10-15 Litu Rout , Yujia Chen , Nataniel Ruiz , Constantine Caramanis , Sanjay Shakkottai , Wen-Sheng Chu

Defocus blur arises in images that are captured with a shallow depth of field due to the use of a wide aperture. Correcting defocus blur is challenging because the blur is spatially varying and difficult to estimate. We propose an effective…

Image and Video Processing · Electrical Eng. & Systems 2020-07-20 Abdullah Abuolaim , Michael S. Brown

Automotive targets undergoing turns in road junctions offer large synthetic apertures over short dwell times to automotive radars that can be exploited for obtaining fine cross-range resolution. Likewise, the wide bandwidths of the…

Signal Processing · Electrical Eng. & Systems 2022-09-28 Shobha Sundar Ram

Inverse rendering aims to decompose a scene into its geometry, material properties and light conditions under a certain rendering model. It has wide applications like view synthesis, relighting, and scene editing. In recent years, inverse…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Geng Lin , Matthias Zwicker

Real-world image super-resolution (RISR) has received increased focus for improving the quality of SR images under unknown complex degradation. Existing methods rely on the heavy SR models to enhance low-resolution (LR) images of different…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Junbo Qiao , Shaohui Lin , Yunlun Zhang , Wei Li , Jie Hu , Gaoqi He , Changbo Wang , Lizhuang Ma

This paper proposes a generalizable, end-to-end deep learning-based method for relative pose regression between two images. Given two images of the same scene captured from different viewpoints, our method predicts the relative rotation and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Fadi Khatib , Yuval Margalit , Meirav Galun , Ronen Basri

Temporal modeling is crucial for video super-resolution. Most of the video super-resolution methods adopt the optical flow or deformable convolution for explicitly motion compensation. However, such temporal modeling techniques increase the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Takashi Isobe , Xu Jia , Xin Tao , Changlin Li , Ruihuang Li , Yongjie Shi , Jing Mu , Huchuan Lu , Yu-Wing Tai

Modern handheld devices can acquire burst image sequence in a quick succession. However, the individual acquired frames suffer from multiple degradations and are misaligned due to camera shake and object motions. The goal of Burst Image…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Akshay Dudhane , Syed Waqas Zamir , Salman Khan , Fahad Shahbaz Khan , Ming-Hsuan Yang

3D Gaussian Splatting (3DGS) has shown remarkable potential for static scene reconstruction, and recent advancements have extended its application to dynamic scenes. However, the quality of reconstructions depends heavily on high-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Yiren Lu , Yunlai Zhou , Disheng Liu , Tuo Liang , Yu Yin

No-Reference Image Quality Assessment for distorted images has always been a challenging problem due to image content variance and distortion diversity. Previous IQA models mostly encode explicit single-quality features of synthetic images…

Image and Video Processing · Electrical Eng. & Systems 2024-11-27 Jingtong Yue , Xin Lin , Zijiu Yang , Chao Ren

Referring Image Segmentation (RIS) is a fundamental vision-language task that outputs object masks based on text descriptions. Many works have achieved considerable progress for RIS, including different fusion method designs. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Jianzong Wu , Xiangtai Li , Xia Li , Henghui Ding , Yunhai Tong , Dacheng Tao

Burst super-resolution (BurstSR) aims at reconstructing a high-resolution (HR) image from a sequence of low-resolution (LR) and noisy images, which is conducive to enhancing the imaging effects of smartphones with limited sensors. The main…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Renlong Wu , Zhilu Zhang , Shuohao Zhang , Hongzhi Zhang , Wangmeng Zuo

Event-guided motion deblurring reconstructs sharp images using the high-temporal-resolution motion cues from event cameras. However, in real capture, thresholding-induced event under-reporting causes missing and fragmented motion cues,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yihong Leng , Siming Zheng , Jinwei Chen , Bo Li , Jiaojiao Li , Peng-Tao Jiang