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3D point cloud registration is a fundamental task in robotics and computer vision. Recently, many learning-based point cloud registration methods based on correspondences have emerged. However, these methods heavily rely on such…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Lifa Zhu , Dongrui Liu , Changwei Lin , Rui Yan , Francisco Gómez-Fernández , Ninghua Yang , Ziyong Feng

Image registration is a fundamental task for medical imaging. Resampling of the intensity values is required during registration and better spatial resolution with finer and sharper structures can improve the resampling performance and…

Image and Video Processing · Electrical Eng. & Systems 2022-01-03 Kaicong Sun , Sven Simon

Free Point Transformer (FPT) has been proposed as a data-driven, non-rigid point set registration approach using deep neural networks. As FPT does not assume constraints based on point vicinity or correspondence, it may be trained simply…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Zachary MC Baum , Tamas Ungi , Christopher Schlenger , Yipeng Hu , Dean C Barratt

Deformable image registration is one of the fundamental tasks in medical imaging. Classical registration algorithms usually require a high computational cost for iterative optimizations. Although deep-learning-based methods have been…

Image and Video Processing · Electrical Eng. & Systems 2022-09-30 Boah Kim , Inhwa Han , Jong Chul Ye

Retinal image registration is vital for diagnostic therapeutic applications within the field of ophthalmology. Existing public datasets, focusing on adult retinal pathologies with high-quality images, have limited number of image pairs and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Yan Hu , Mingdao Gong , Zhongxi Qiu , Jiabao Liu , Hongli Shen , Mingzhen Yuan , Xiaoqing Zhang , Heng Li , Hai Lu , Jiang Liu

We present a generic method for assessing the quality of non-rigid registration (NRR) algorithms, that does not depend on the existence of any ground truth, but depends solely on the data itself. The data is a set of images. The output of…

Computer Vision and Pattern Recognition · Computer Science 2020-02-26 Carole J. Twining , Vladimir S. Petrović , Timothy F. Cootes , Roy S. Schestowitz , William R. Crum , Christopher J. Taylor

A precise and user-friendly manipulation of image content while preserving image fidelity has always been crucial to the field of image editing. Thanks to the power of generative models, recent point-based image editing methods allow users…

Computer Vision and Pattern Recognition · Computer Science 2024-01-15 Minxing Luo , Wentao Cheng , Jian Yang

Fundus image quality is crucial for diagnosing eye diseases, but real-world conditions often result in blurred or unreadable images, increasing diagnostic uncertainty. To address these challenges, this study proposes RetinaRegen, a hybrid…

Image and Video Processing · Electrical Eng. & Systems 2025-02-28 Yuhan Tang , Yudian Wang , Weizhen Li , Ye Yue , Chengchang Pan , Honggang Qi

Visible light optical coherence tomography (vis-OCT) is gaining traction for retinal imaging due to its high resolution and functional capabilities. However, the significant absorption of hemoglobin in the visible light range leads to…

Image and Video Processing · Electrical Eng. & Systems 2024-11-14 Razieh Ganjee , Bingjie Wang , Lingyun Wang , Chengcheng Zhao , José-Alain Sahel , Shaohua Pi

Multimodal image registration is a fundamental task and a prerequisite for downstream cross-modal analysis. Despite recent progress in shared feature extraction and multi-scale architectures, two key limitations remain. First, some methods…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Chunlei Zhang , Jiahao Xia , Yun Xiao , Bo Jiang , Jian Zhang

Image registration is a research field in which images must be compared and aligned independently of the point of view or camera characteristics. In some applications (such as forensic biometrics, satellite photography or outdoor scene…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Carlos Francisco Moreno-Garcia , Francesc Serratosa

We present DiffPortrait3D, a conditional diffusion model that is capable of synthesizing 3D-consistent photo-realistic novel views from as few as a single in-the-wild portrait. Specifically, given a single RGB input, we aim to synthesize…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Yuming Gu , You Xie , Hongyi Xu , Guoxian Song , Yichun Shi , Di Chang , Jing Yang , Linjie Luo

The goal of image registration is to establish spatial correspondence between two or more images, traditionally through dense displacement fields (DDFs) or parametric transformations (e.g., rigid, affine, and splines). Rethinking the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Shiqi Huang , Tingfa Xu , Ziyi Shen , Shaheer Ullah Saeed , Wen Yan , Dean Barratt , Yipeng Hu

Image registration is an essential process for aligning features of interest from multiple images. With the recent development of deep learning techniques, image registration approaches have advanced to a new level. In this work, we present…

Image and Video Processing · Electrical Eng. & Systems 2024-07-30 Ruixiong Wang , Alin Achim , Renata Raele-Rolfe , Qiao Tong , Dylan Bergen , Chrissy Hammond , Stephen Cross

In autonomous and mobile robotics, one of the main challenges is the robust on-the-fly perception of the environment, which is often unknown and dynamic, like in autonomous drone racing. In this work, we propose a novel deep neural…

Robotics · Computer Science 2022-07-29 Huy Xuan Pham , Andriy Sarabakha , Mykola Odnoshyvkin , Erdal Kayacan

We present Deep Shape-from-Template (DeepSfT), a novel Deep Neural Network (DNN) method for solving real-time automatic registration and 3D reconstruction of a deformable object viewed in a single monocular image.DeepSfT advances the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 David Fuentes-Jimenez , David Casillas-Perez , Daniel Pizarro , Toby Collins , Adrien Bartoli

Conventional medical image registration approaches directly optimize over the parameters of a transformation model. These approaches have been highly successful and are used generically for registrations of different anatomical regions.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Lin Tian , Hastings Greer , Roland Kwitt , Francois-Xavier Vialard , Raul San Jose Estepar , Sylvain Bouix , Richard Rushmore , Marc Niethammer

Precision in identifying and differentiating micro and macro blood vessels in the retina is crucial for the diagnosis of retinal diseases, although it poses a significant challenge. Current autoencoding-based segmentation approaches…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Rui Yang , Shunpu Zhang

Point cloud registration is a key task in many computational fields. Previous correspondence matching based methods require the inputs to have distinctive geometric structures to fit a 3D rigid transformation according to point-wise sparse…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Hao Xu , Shuaicheng Liu , Guangfu Wang , Guanghui Liu , Bing Zeng

Rigid pre-registration involving local-global matching or other large deformation scenarios is crucial. Current popular methods rely on unsupervised learning based on grayscale similarity, but under circumstances where different poses lead…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Lin Liu , Xinxin Fan , Haoyang Liu , Chulong Zhang , Weibin Kong , Jingjing Dai , Yuming Jiang , Yaoqin Xie , Xiaokun Liang