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Registration of pre-operative 3-D volumes to intra-operative 2-D X-ray images is important in minimally invasive medical procedures. Rigid registration can be performed by estimating a global rigid motion that optimizes the alignment of…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Roman Schaffert , Jian Wang , Peter Fischer , Anja Borsdorf , Andreas Maier

Correlative imaging workflows are now widely used in bioimaging and aims to image the same sample using at least two different and complementary imaging modalities. Part of the workflow relies on finding the transformation linking a source…

Quantitative Methods · Quantitative Biology 2021-08-30 Guillaume Potier , Frédéric Lavancier , Stephan Kunne , Perrine Paul-Gilloteaux

Image registration (IR) is a process that deforms images to align them with respect to a reference space, making it easier for medical practitioners to examine various medical images in a standardized reference frame, such as having the…

Image and Video Processing · Electrical Eng. & Systems 2024-01-11 Ahmad Hammoudeh , Stéphane Dupont

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

Non-rigid point cloud registration is a critical challenge in 3D scene understanding, particularly in surgical navigation. Although existing methods achieve excellent performance when trained on large-scale, high-quality datasets, these…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Geng Li , Haozhi Cao , Mingyang Liu , Chenxi Jiang , Jianfei Yang

Cross-modal data registration has long been a critical task in computer vision, with extensive applications in autonomous driving and robotics. Accurate and robust registration methods are essential for aligning data from different…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yuanchao Yue , Hui Yuan , Qinglong Miao , Xiaolong Mao , Raouf Hamzaoui , Peter Eisert

Surface registration, the task of aligning several multidimensional point sets, is a necessary task in many scientific fields. In this work, a novel statistical approach is developed to solve the problem of nonrigid registration. While the…

Methodology · Statistics 2020-06-15 Ashton Wiens , William Kleiber , Douglas Nychka , Katherine R. Barnhart

In this paper, we propose a novel non-iterative algorithm to simultaneously estimate optimal rigid transformation for serial section images, which is a key component in volume reconstruction of serial sections of biological tissue. In order…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Chang Shu , Xi Chen , Qiwei Xie , Chi Xiao , Hua Han

We present HyperMorph, a learning-based strategy for deformable image registration that removes the need to tune important registration hyperparameters during training. Classical registration methods solve an optimization problem to find a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Andrew Hoopes , Malte Hoffmann , Bruce Fischl , John Guttag , Adrian V. Dalca

We introduce a robust algorithm for face verification, i.e., deciding whether twoimages are of the same person or not. Our approach is a novel take on the idea ofusing deep generative networks for adversarial robustness. We use the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Marius Arvinte , Ahmed H. Tewfik , Sriram Vishwanath

For a considerable time, deep convolutional neural networks (DCNNs) have reached human benchmark performance in object recognition. On that account, computational neuroscience and the field of machine learning have started to attribute…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Leonard E. van Dyck , Walter R. Gruber

We introduce Neural Deformation Graphs for globally-consistent deformation tracking and 3D reconstruction of non-rigid objects. Specifically, we implicitly model a deformation graph via a deep neural network. This neural deformation graph…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Aljaž Božič , Pablo Palafox , Michael Zollhöfer , Justus Thies , Angela Dai , Matthias Nießner

We propose a registration algorithm for 2D CT/MRI medical images with a new unsupervised end-to-end strategy using convolutional neural networks. The contributions of our algorithm are threefold: (1) We transplant traditional image…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Siyuan Shan , Wen Yan , Xiaoqing Guo , Eric I-Chao Chang , Yubo Fan , Yan Xu

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

We study the recently introduced stability training as a general-purpose method to increase the robustness of deep neural networks against input perturbations. In particular, we explore its use as an alternative to data augmentation and…

Machine Learning · Computer Science 2019-11-14 Jan Laermann , Wojciech Samek , Nils Strodthoff

The parallelism of optics and the miniaturization of optical components using nanophotonic structures, such as metasurfaces present a compelling alternative to electronic implementations of convolutional neural networks. The lack of a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Shane Colburn , Yi Chu , Eli Shlizerman , Arka Majumdar

A fast and accurate algorithm is presented for registering scans from an RGB-D camera on a pan-tilt platform. The pan-tilt RGB-D camera rotates and scans the entire scene in an automated fashion. The proposed algorithm exploits the movement…

Graphics · Computer Science 2019-06-11 Jung-Hyun Byun , Tack-Don Han

Image Registration is the process of aligning two or more images of the same scene with reference to a particular image. The images are captured from various sensors at different times and at multiple view-points. Thus to get a better…

Computer Vision and Pattern Recognition · Computer Science 2017-12-21 Sayan Nag

Image matting is a fundamental computer vision problem and has many applications. Previous algorithms have poor performance when an image has similar foreground and background colors or complicated textures. The main reasons are prior…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Ning Xu , Brian Price , Scott Cohen , Thomas Huang

Non-rigid registration is a key component in soft-tissue navigation. We focus on laparoscopic liver surgery, where we register the organ model obtained from a preoperative CT scan to the intraoperative partial organ surface, reconstructed…

Image and Video Processing · Electrical Eng. & Systems 2020-06-01 Micha Pfeiffer , Carina Riediger , Stefan Leger , Jens-Peter Kühn , Danilo Seppelt , Ralf-Thorsten Hoffmann , Jürgen Weitz , Stefanie Speidel