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Implicit neural representations (INRs) mark a fundamental shift in signal modeling, moving from discrete sampled data to continuous functional representations. By parameterizing signals as neural networks, INRs provide a unified framework…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Dhananjaya Jayasundara , Vishal M. Patel

Inter-modality image registration is an critical preprocessing step for many applications within the routine clinical pathway. This paper presents an unsupervised deep inter-modality registration network that can learn the optimal affine…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Chengjia Wang , Giorgos Papanastasiou , Agisilaos Chartsias , Grzegorz Jacenkow , Sotirios A. Tsaftaris , Heye Zhang

Multimodal image registration (MIR) is a fundamental procedure in many image-guided therapies. Recently, unsupervised learning-based methods have demonstrated promising performance over accuracy and efficiency in deformable image…

计算机视觉与模式识别 · 计算机科学 2020-11-13 Zhe Xu , Jiangpeng Yan , Jie Luo , Xiu Li , Jayender Jagadeesan

In NeRF-aided editing tasks, object movement presents difficulties in supervision generation due to the introduction of variability in object positions. Moreover, the removal operations of certain scene objects often lead to empty regions,…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Zhenyang Li , Zilong Chen , Feifan Qu , Mingqing Wang , Yizhou Zhao , Kai Zhang , Yifan Peng

Interrupted X-ray computed tomography (X-CT) has been the common way to observe the deformation of materials during an experiment. While this approach is effective for quasi-static experiments, it has never been possible to reconstruct a…

仪器与探测器 · 物理学 2024-10-29 Ivan Grega , William F. Whitney , Vikram S. Deshpande

Multispectral imaging aims at recording images in different spectral bands. This is extremely beneficial in diverse discrimination applications, for example in agriculture, recycling or healthcare. One approach for snapshot multispectral…

图像与视频处理 · 电气工程与系统科学 2024-06-18 Frank Sippel , Jürgen Seiler , André Kaup

Recent advances in implicit neural representations and differentiable rendering make it possible to simultaneously recover the geometry and materials of an object from multi-view RGB images captured under unknown static illumination.…

计算机视觉与模式识别 · 计算机科学 2022-04-15 Yuanqing Zhang , Jiaming Sun , Xingyi He , Huan Fu , Rongfei Jia , Xiaowei Zhou

With the development of Deep Neural Networks (DNNs), many efforts have been made to handle medical image segmentation. Traditional methods such as nnUNet train specific segmentation models on the individual datasets. Plenty of recent…

计算机视觉与模式识别 · 计算机科学 2024-07-12 Xiaobao Wei , Jiajun Cao , Yizhu Jin , Ming Lu , Guangyu Wang , Shanghang Zhang

We explore different curriculum learning methods for training convolutional neural networks on the task of deformable pairwise 3D medical image registration. To the best of our knowledge, we are the first to attempt to improve performance…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Mihail Burduja , Radu Tudor Ionescu

We present a novel neural surface reconstruction method called NeuralRoom for reconstructing room-sized indoor scenes directly from a set of 2D images. Recently, implicit neural representations have become a promising way to reconstruct…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Yusen Wang , Zongcheng Li , Yu Jiang , Kaixuan Zhou , Tuo Cao , Yanping Fu , Chunxia Xiao

Models for image representation learning are typically designed for either recognition or generation. Various forms of contrastive learning help models learn to convert images to embeddings that are useful for classification, detection, and…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Matthew Gwilliam , Xiao Wang , Xuefeng Hu , Zhenheng Yang

Detection of surgical instruments plays a key role in ensuring patient safety in minimally invasive surgery. In this paper, we present a novel method for 2D vision-based recognition and pose estimation of surgical instruments that…

计算机视觉与模式识别 · 计算机科学 2017-10-19 Thomas Kurmann , Pablo Marquez Neila , Xiaofei Du , Pascal Fua , Danail Stoyanov , Sebastian Wolf , Raphael Sznitman

Neural shape models can represent complex 3D shapes with a compact latent space. When applied to dynamically deforming shapes such as the human hands, however, they would need to preserve temporal coherence of the deformation as well as the…

计算机视觉与模式识别 · 计算机科学 2021-10-06 Binbin Xu , Lingni Ma , Yuting Ye , Tanner Schmidt , Christopher D. Twigg , Steven Lovegrove

3D medical image registration is of great clinical importance. However, supervised learning methods require a large amount of accurately annotated corresponding control points (or morphing), which are very difficult to obtain. Unsupervised…

计算机视觉与模式识别 · 计算机科学 2020-05-11 Shengyu Zhao , Tingfung Lau , Ji Luo , Eric I-Chao Chang , Yan Xu

In this paper, we present a novel double diffusion based neural radiance field, dubbed DD-NeRF, to reconstruct human body geometry and render the human body appearance in novel views from a sparse set of images. We first propose a double…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Guangming Yao , Hongzhi Wu , Yi Yuan , Lincheng Li , Kun Zhou , Xin Yu

We propose X-NeRF, a novel method to learn a Cross-Spectral scene representation given images captured from cameras with different light spectrum sensitivity, based on the Neural Radiance Fields formulation. X-NeRF optimizes camera poses…

计算机视觉与模式识别 · 计算机科学 2022-09-02 Matteo Poggi , Pierluigi Zama Ramirez , Fabio Tosi , Samuele Salti , Stefano Mattoccia , Luigi Di Stefano

As in other areas of medical image analysis, e.g. semantic segmentation, deep learning is currently driving the development of new approaches for image registration. Multi-scale encoder-decoder network architectures achieve state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Lasse Hansen , Mattias P. Heinrich

Intra-operative 2D-3D registration of X-ray images with pre-operatively acquired CT scans is a crucial procedure in orthopedic surgeries. Anatomical landmarks pre-annotated in the CT volume can be detected in X-ray images to establish 2D-3D…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Pragyan Shrestha , Chun Xie , Yuichi Yoshii , Itaru Kitahara

This article presents a novel undersampled magnetic resonance imaging (MRI) technique that leverages the concept of Neural Radiance Field (NeRF). With radial undersampling, the corresponding imaging problem can be reformulated into an image…

图像与视频处理 · 电气工程与系统科学 2024-03-05 Tae Jun Jang , Chang Min Hyun