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Related papers: Displacement field calculation of large-scale stru…

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Volume-based indoor scene reconstruction methods offer superior generalization capability and real-time deployment potential. However, existing methods rely on multi-view pixel back-projection ray intersections as weak geometric constraints…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Mingyang Li , Yimeng Fan , Changsong Liu , Lixue Xu , Xin Wang , Yanyan Liu , Wei Zhang

Metric localization plays a critical role in vision-based navigation. For overcoming the degradation of matching photometry under appearance changes, recent research resorted to introducing geometry constraints of the prior scene structure.…

Robotics · Computer Science 2020-04-01 Huaiyang Huang , Yuxiang Sun , Haoyang Ye , Ming Liu

We develop a model-independent approach to lagrangian perturbation theory for the large scale structure of the universe. We focus on the displacement field for dark matter particles, and derive its most general structure without assuming a…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-27 Marco Marinucci , Kevin Pardede , Massimo Pietroni

High-quality novel view synthesis for large-scale scenes presents a challenging dilemma in 3D computer vision. Existing methods typically partition large scenes into multiple regions, reconstruct a 3D representation using Gaussian splatting…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Xiaohan Zhang , Sitong Wang , Yushen Yan , Yi Yang , Mingda Xu , Qi Liu

Multi-focus image fusion is a technique for obtaining an all-in-focus image in which all objects are in focus to extend the limited depth of field (DoF) of an imaging system. Different from traditional RGB-based methods, this paper presents…

Computer Vision and Pattern Recognition · Computer Science 2018-06-06 Hang Liu , Hengyu Li , Jun Luo , Shaorong Xie , Yu Sun

We propose and examine the use of biphoton pairs, such as those created in parametric down conversion or four-wave mixing, to enhance the precision and the resolution of measuring optical displacements by position-sensitive detection. We…

Quantum Physics · Physics 2016-05-04 Kevin Lyons , Shengshi Pang , Paul G. Kwiat , Andrew N. Jordan

Estimating positions of world points from features observed in images is a key problem in 3D reconstruction, image mosaicking,simultaneous localization and mapping and structure from motion. We consider a special instance in which there is…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Cheng Peng , Volkan Isler

Image based modeling and laser scanning are two commonly used approaches in large-scale architectural scene reconstruction nowadays. In order to generate a complete scene reconstruction, an effective way is to completely cover the scene…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Xiang Gao , Shuhan Shen , Lingjie Zhu , Tianxin Shi , Zhiheng Wang , Zhanyi Hu

This paper presents deformable templates as a tool for segmentation and localization of biological structures in medical images. Structures are represented by a prototype template, combined with a parametric warp mapping used to deform the…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Jonathan M. Spiller , T. Marwala

In this paper, we present an automatic system for the analysis and labeling of structural scenes, floor plan drawings in Computer-aided Design (CAD) format. The proposed system applies a fusion strategy to detect and recognize various…

Graphics · Computer Science 2018-02-07 Rui Tang , Yuhan Wang , Darren Cosker , Wenbin Li

Conventional single image based localization methods usually fail to localize a querying image when there exist large variations between the querying image and the pre-built scene. To address this, we propose an image-set querying based…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Lei Deng , Siyuan Huang , Yueqi Duan , Baohua Chen , Jie Zhou

Establishing consistent and dense correspondences across multiple images is crucial for Structure from Motion (SfM) systems. Significant view changes, such as air-to-ground with very sparse view overlap, pose an even greater challenge to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Gonglin Chen , Jinsen Wu , Haiwei Chen , Wenbin Teng , Zhiyuan Gao , Andrew Feng , Rongjun Qin , Yajie Zhao

It is well-known that subspace migration is stable and effective non-iterative imaging technique in inverse scattering problem. But, for a proper application, geometric features of unknown targets must be considered beforehand. Without this…

Numerical Analysis · Mathematics 2016-01-11 Won-Kwang Park

Recently, deep learning algorithms, especially fully convolutional network based methods, are becoming very popular in the field of remote sensing. However, these methods are implemented and evaluated through various datasets and deep…

Computer Vision and Pattern Recognition · Computer Science 2018-09-17 Guangming Wu , Zhiling Guo

Accurately localizing and identifying vertebrae from CT images is crucial for various clinical applications. However, most existing efforts are performed on 3D with cropping patch operation, suffering from the large computation costs and…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Han Wu , Jiadong Zhang , Yu Fang , Zhentao Liu , Nizhuan Wang , Zhiming Cui , Dinggang Shen

Geometric camera calibration is often required for applications that understand the perspective of the image. We propose perspective fields as a representation that models the local perspective properties of an image. Perspective Fields…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Linyi Jin , Jianming Zhang , Yannick Hold-Geoffroy , Oliver Wang , Kevin Matzen , Matthew Sticha , David F. Fouhey

In this paper, we aim to model 3D scene geometry, appearance, and physical information just from dynamic multi-view videos in the absence of any human labels. By leveraging physics-informed losses as soft constraints or integrating simple…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Jinxi Li , Ziyang Song , Bo Yang

Discontinuities in spatial derivatives appear in a wide range of physical systems, from creased thin sheets to materials with sharp stiffness transitions. Accurately modeling these features is essential for simulation but remains…

Graphics · Computer Science 2025-05-28 Mengfei Liu , Yue Chang , Zhecheng Wang , Peter Yichen Chen , Eitan Grinspun

We present novel retrospective change point detection approach based on optimal transport and geometric discrepancy. The method does not require any parametric assumptions about distributions separated by change points. It can be used both…

Methodology · Statistics 2017-07-28 Nikita Pronko

Video restoration, which aims to restore clear frames from degraded videos, has numerous important applications. The key to video restoration depends on utilizing inter-frame information. However, existing deep learning methods often rely…

Image and Video Processing · Electrical Eng. & Systems 2023-05-23 Dasong Li , Xiaoyu Shi , Yi Zhang , Ka Chun Cheung , Simon See , Xiaogang Wang , Hongwei Qin , Hongsheng Li