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Image registration is a key technique in medical image analysis to estimate deformations between image pairs. A good deformation model is important for high-quality estimates. However, most existing approaches use ad-hoc deformation models…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Marc Niethammer , Roland Kwitt , Francois-Xavier Vialard

Deep neural networks are increasingly used for pair-wise image registration. We propose to extend current learning-based image registration to allow simultaneous registration of multiple images. To achieve this, we build upon the pair-wise…

图像与视频处理 · 电气工程与系统科学 2020-10-02 Tycho F. A. van der Ouderaa , Ivana Išgum , Wouter B. Veldhuis , Bob D. de Vos

Metamorphosis is a method for diffeomorphic matching of shapes, with many potential applications for anatomical shape comparison in medical imagery, a problem which is central to the field of computational anatomy. An important tool for the…

最优化与控制 · 数学 2014-09-24 Casey L Richardson , Laurent Younes

Deep learning based methods provide efficient solutions to medical image registration, including the challenging problem of diffeomorphic image registration. However, most methods register normal image pairs, facing difficulty handling…

图像与视频处理 · 电气工程与系统科学 2023-03-17 Ankita Joshi , Yi Hong

Image compression is a method to remove spatial redundancy between adjacent pixels and reconstruct a high-quality image. In the past few years, deep learning has gained huge attention from the research community and produced promising image…

图像与视频处理 · 电气工程与系统科学 2021-09-07 Khawar Islam , L. Minh Dang , Sujin Lee , Hyeonjoon Moon

Dynamic inverse problems are challenging to solve due to the need to identify and incorporate appropriate regularization in both space and time. Moreover, the very large scale nature of such problems in practice presents an enormous…

数值分析 · 数学 2025-01-23 Toluwani Okunola , Mirjeta Pasha , Misha Kilmer , Melina Freitag

Coupled tensor approximation has recently emerged as a promising approach for the fusion of hyperspectral and multispectral images, reconciling state of the art performance with strong theoretical guarantees. However, tensor-based…

Deep image prior (DIP), which utilizes a deep convolutional network (ConvNet) structure itself as an image prior, has attracted attentions in computer vision and machine learning communities. It empirically shows the effectiveness of…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Tatsuya Yokota , Hidekata Hontani , Qibin Zhao , Andrzej Cichocki

In the statistical analysis of shape a goal beyond the analysis of static shapes lies in the quantification of `same' deformation of different shapes. Typically, shape spaces are modelled as Riemannian manifolds on which parallel transport…

统计方法学 · 统计学 2010-02-04 Stephan Huckemann

This paper investigates a family of dynamical systems arising from an evolutionary re-interpretation of certain optimal control and optimization problems. We focus particularly on the application in image registration of the theory of…

混沌动力学 · 物理学 2011-06-21 F. Gay-Balmaz , D. D. Holm , T. S. Ratiu

We introduce a theoretical framework for differentiable surface evolution that allows discrete topology changes through the use of topological derivatives for variational optimization of image functionals. While prior methods for inverse…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Ishit Mehta , Manmohan Chandraker , Ravi Ramamoorthi

We proposed a novel approach to coherent imaging of dynamic samples. The inter-frame similarity of the sample's local structures is found to be a powerful constraint in phasing a sequence of diffraction patterns. We devised a new image…

光学 · 物理学 2024-07-11 Pengju Sheng , Fucai Zhang

Traditional image resizing methods usually work in pixel space and use various saliency measures. The challenge is to adjust the image shape while trying to preserve important content. In this paper we perform image resizing in feature…

计算机视觉与模式识别 · 计算机科学 2021-06-23 Moab Arar , Dov Danon , Daniel Cohen-Or , Ariel Shamir

Deep implicit functions (DIFs), as a kind of 3D shape representation, are becoming more and more popular in the 3D vision community due to their compactness and strong representation power. However, unlike polygon mesh-based templates, it…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Zerong Zheng , Tao Yu , Qionghai Dai , Yebin Liu

This article describes the implementation of the joint motion estimation and image reconstruction framework presented by Burger, Dirks and Sch\"onlieb and extends this framework to large-scale motion between consecutive image frames. The…

计算机视觉与模式识别 · 计算机科学 2016-11-01 Hendrik Dirks

Recently, the theory of diffusion maps was extended to a large class of local kernels with exponential decay which were shown to represent various Riemannian geometries on a data set sampled from a manifold embedded in Euclidean space.…

经典分析与常微分方程 · 数学 2015-09-28 Tyrus Berry , John Harlim

Recent advancements in multi-modal large language models have propelled the development of joint probabilistic models capable of both image understanding and generation. However, we have identified that recent methods suffer from loss of…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Jian Yang , Dacheng Yin , Yizhou Zhou , Fengyun Rao , Wei Zhai , Yang Cao , Zheng-Jun Zha

B\'ezier curves are a widespread tool for the design of curves in Euclidian space. This paper generalizes the notion of B\'ezier curves to the infinite-dimensional space of images. To this end the space of images is equipped with a…

数值分析 · 数学 2015-03-10 Alexander Effland , Martin Rumpf , Stefan Simon , Kirsten Stahn , Benedikt Wirth

We present a diffusion-based image morphing approach with perceptually-uniform sampling (IMPUS) that produces smooth, direct and realistic interpolations given an image pair. The embeddings of two images may lie on distinct conditioned…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Zhaoyuan Yang , Zhengyang Yu , Zhiwei Xu , Jaskirat Singh , Jing Zhang , Dylan Campbell , Peter Tu , Richard Hartley

Large displacement optical flow is an integral part of many computer vision tasks. Variational optical flow techniques based on a coarse-to-fine scheme interpolate sparse matches and locally optimize an energy model conditioned on colour,…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Qiao Chen , Charalambos Poullis