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Efficiently synthesizing novel views from sparse inputs while maintaining accuracy remains a critical challenge in 3D reconstruction. While advanced techniques like radiance fields and 3D Gaussian Splatting achieve rendering quality and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Chenlu Zhan , Yufei Zhang , Yu Lin , Gaoang Wang , Hongwei Wang

In the context of Earth observation, change detection boils down to comparing images acquired at different times by sensors of possibly different spatial and/or spectral resolutions or different modalities (e.g., optical or radar). Even…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Jin-Ju Wang , Nicolas Dobigeon , Marie Chabert , Ding-Cheng Wang , Ting-Zhu Huang , Jie Huang

We investigate what structure emerges in 3D Gaussian Splatting (3DGS) solutions from standard multi-view optimization. We term these Rendering-Optimal References (RORs) and analyze their statistical properties, revealing stable patterns:…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Zhendong Wang , Cihan Ruan , Jingchuan Xiao , Chuqing Shi , Wei Jiang , Wei Wang , Wenjie Liu , Nam Ling

Diffeomorphic deformable image registration is crucial in many medical image studies, as it offers unique, special properties including topology preservation and invertibility of the transformation. Recent deep learning-based deformable…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Tony C. W. Mok , Albert C. S. Chung

3D object detection from point clouds is crucial in safety-critical autonomous driving. Although many works have made great efforts and achieved significant progress on this task, most of them suffer from expensive annotation cost and poor…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Qianjiang Hu , Daizong Liu , Wei Hu

Recent feed-forward networks have achieved remarkable progress in sparse-view 3D reconstruction by predicting dense point maps directly from RGB images. However, they often suffer from geometric inconsistencies and limited fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yutong Chen , Yiming Wang , Xucong Zhang , Sergey Prokudin , Siyu Tang

The recent application of deep learning in various areas of medical image analysis has brought excellent performance gains. In particular, technologies based on deep learning in medical image registration can outperform traditional…

Image and Video Processing · Electrical Eng. & Systems 2019-09-09 Abdullah Nazib , Clinton Fookes , Dimitri Perrin

4D millimeter-wave radar is a promising sensing modality for autonomous driving, yet effective 3D object detection from 4D radar and monocular images remains challenging. Existing fusion approaches either rely on instance proposals lacking…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Xiaokai Bai , Chenxu Zhou , Lianqing Zheng , Si-Yuan Cao , Jianan Liu , Xiaohan Zhang , Yiming Li , Zhengzhuang Zhang , Hui-liang Shen

High dynamic range (HDR) novel view synthesis (NVS) aims to reconstruct HDR scenes by leveraging multi-view low dynamic range (LDR) images captured at different exposure levels. Current training paradigms with 3D tone mapping often result…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Jinfeng Liu , Lingtong Kong , Bo Li , Dan Xu

Deformable Image Registration (DIR) is essential for aligning medical images that exhibit anatomical variations, facilitating applications such as disease tracking and radiotherapy planning. While classical iterative methods and deep…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Jihe Li , Xiang Liu , Fabian Zhang , Xia Li , Xixin Cao , Ye Zhang , Joachim Buhmann

We propose Stereo Direct Sparse Odometry (Stereo DSO) as a novel method for highly accurate real-time visual odometry estimation of large-scale environments from stereo cameras. It jointly optimizes for all the model parameters within the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Rui Wang , Martin Schwörer , Daniel Cremers

Transparent and specular objects are frequently encountered in daily life, factories, and laboratories. However, due to the unique optical properties, the depth information on these objects is usually incomplete and inaccurate, which poses…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Yizhe Liu , Tong Jia , Da Cai , Hao Wang , Dongyue Chen

In robotic navigation, maintaining precise pose estimation and navigation in complex and dynamic environments is crucial. However, environmental challenges such as smoke, tunnels, and adverse weather can significantly degrade the…

Robotics · Computer Science 2025-07-25 Chenglong Qian , Yang Xu , Xiufang Shi , Jiming Chen , Liang Li

The task of separating dynamic objects from static environments using NeRFs has been widely studied in recent years. However, capturing large-scale scenes still poses a challenge due to their complex geometric structures and unconstrained…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Thang-Anh-Quan Nguyen , Luis Roldão , Nathan Piasco , Moussab Bennehar , Dzmitry Tsishkou

There is a growing demand for high-resolution (HR) medical images in both the clinical and research applications. Image quality is inevitably traded off with the acquisition time for better patient comfort, lower examination costs, dose,…

Image and Video Processing · Electrical Eng. & Systems 2021-06-07 Kuan Zhang , Haoji Hu , Kenneth Philbrick , Gian Marco Conte , Joseph D. Sobek , Pouria Rouzrokh , Bradley J. Erickson

Deep learning (DL) image registration methods amortize the costly pair-wise iterative optimization by training deep neural networks to predict the optimal transformation in one fast forward-pass. In this work, we bridge the gap between…

Image and Video Processing · Electrical Eng. & Systems 2022-09-13 Huaqi Qiu , Kerstin Hammernik , Chen Qin , Chen Chen , Daniel Rueckert

Modern cameras with large apertures often suffer from a shallow depth of field, resulting in blurry images of objects outside the focal plane. This limitation is particularly problematic for fixed-focus cameras, such as those used in smart…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Xinge Yang , Chuong Nguyen , Wenbin Wang , Kaizhang Kang , Wolfgang Heidrich , Xiaoxing Li

Referring Remote Sensing Image Segmentation (RRSIS) is a challenging task, aiming to segment specific target objects in remote sensing (RS) images based on a given language expression. Existing RRSIS methods typically employ coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Maofu Liu , Xin Jiang , Xiaokang Zhang

Many registration problems are ill-posed in homogeneous or noisy regions, and dense voxel-wise decoders can be unnecessarily high-dimensional. A sparse control-point parameterisation provides a compact, smooth deformation representation…

Image and Video Processing · Electrical Eng. & Systems 2026-03-19 Wen Yan , Qianye Yang , Yipei Wang , Shonit Punwani , Mark Emberton , Vasilis Stavrinides , Yipeng Hu , Dean Barratt

In the field of Simultaneous Localization and Mapping (SLAM), researchers have always pursued better performance in terms of accuracy and time cost. Traditional algorithms typically rely on fundamental geometric elements in images to…

Robotics · Computer Science 2024-03-05 Zhang Zhihe