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We introduce a new method for location recovery from pair-wise directions that leverages an efficient convex program that comes with exact recovery guarantees, even in the presence of adversarial outliers. When pairwise directions represent…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Thomas Goldstein , Paul Hand , Choongbum Lee , Vladislav Voroninski , Stefano Soatto

Image registration is a process of aligning two or more images of same objects using geometric transformation. Most of the existing approaches work on the assumption of location invariance. These approaches require object-centric images to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 Deepak Mishra , Rajeev Ranjan , Santanu Chaudhury , Mukul Sarkar , Arvinder Singh Soin

3D human pose estimation involves reconstructing the human skeleton by detecting the body joints. Accurate and efficient solutions are required for several real-world applications including animation, human-robot interaction, surveillance,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Ana Filipa Rodrigues Nogueira , Hélder P. Oliveira , Luís F. Teixeira

A technique for object localization based on pose estimation and camera calibration is presented. The 3-dimensional (3D) coordinates are estimated by collecting multiple 2-dimensional (2D) images of the object and are utilized for the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Taha Hasan Masood Siddique , Muhammad Usman

Existing rotation-invariant point cloud masked autoencoders (MAE) rely on random masking strategies that overlook geometric structure and semantic coherence. Random masking treats patches independently, failing to capture spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Xuanhua Yin , Dingxin Zhang , Yu Feng , Shunqi Mao , Jianhui Yu , Weidong Cai

Existing methods for 3D human mesh recovery always directly estimate SMPL parameters, which involve both joint rotations and shape parameters. However, these methods present rotation semantic ambiguity, rotation error accumulation, and…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Xiaoyang Hao , Han Li , Jun Cheng , Lei Wang

Triangular meshes are the most popular representations of 3D objects, but many mesh surfaces contain topological singularities that represent a challenge for displaying or further processing them properly. One such singularity is the…

Computational Geometry · Computer Science 2022-06-22 K. Sfikas , P. Perakis , T. Theoharis

X-ray polarization is a powerful tool for unveiling the anisotropic characteristics of high-energy celestial objects. We present a novel imaging reconstruction method designed for hard X-ray polarimeters employing a Si CMOS sensor and coded…

Instrumentation and Methods for Astrophysics · Physics 2024-07-09 Tsubasa Tamba , Hirokazu Odaka , Taihei Watanabe , Toshiya Iwata , Tomoaki Kasuga , Atsushi Tanimoto , Satoshi Takashima , Masahiro Ichihashi , Hiromasa Suzuki , Aya Bamba

Recently, various methods for 6D pose and shape estimation of objects have been proposed. Typically, these methods evaluate their pose estimation in terms of average precision, and reconstruction quality with chamfer distance. In this work…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Leonard Bruns , Patric Jensfelt

We present a method for tracking and predicting the propagation and evolution of coronal mass ejections (CMEs) using the imagers on the STEREO and SOHO satellites. By empirically modeling the material between the inner core and leading edge…

Solar and Stellar Astrophysics · Physics 2012-02-28 Samuel Schreiner , Cynthia Cattell , Kris Kersten , Adam Hupach

Interpolating scattered CFD datasets onto a uniform Cartesian grid can distort the true geometry, producing a convex-hull type envelope and activating nonphysical regions. This work presents a reconstruction framework that recovers…

Fluid Dynamics · Physics 2026-02-18 Mehran Sharifi , Gorka S. Larraona , Alejandro Rivas

This paper presents a new method for 3D shape reconstruction based on two existing methods. A 3D reconstruction from a single photograph is introduced by both papers: the first one uses a photograph and a set of existing 3D model to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-16 Yong Khoo

3D human pose and shape recovery from a monocular RGB image is a challenging task. Existing learning based methods highly depend on weak supervision signals, e.g. 2D and 3D joint location, due to the lack of in-the-wild paired 3D…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Zhiwei Liu , Xiangyu Zhu , Lu Yang , Xiang Yan , Ming Tang , Zhen Lei , Guibo Zhu , Xuetao Feng , Yan Wang , Jinqiao Wang

This research aims to study a self-supervised 3D clothing reconstruction method, which recovers the geometry shape and texture of human clothing from a single image. Compared with existing methods, we observe that three primary challenges…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Zhedong Zheng , Jiayin Zhu , Wei Ji , Yi Yang , Tat-Seng Chua

This paper tackles the problem of estimating 3D body shape of clothed humans from single polarized 2D images, i.e. polarization images. Polarization images are known to be able to capture polarized reflected lights that preserve rich…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Shihao Zou , Xinxin Zuo , Yiming Qian , Sen Wang , Chi Xu , Minglun Gong , Li Cheng

In this study, we analyze nine CMEs from the Sun to Earth as observed in both the remote sensing and in situ data sets. To date, this is the largest study of Earth impacting CMEs using the multi-view point remote sensing and in situ data.…

Solar and Stellar Astrophysics · Physics 2012-06-20 Robin C. Colaninno

Triangulated meshes have become ubiquitous discrete-surface representations. In this paper we address the problem of how to maintain the manifold properties of a surface while it undergoes strong deformations that may cause topological…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Andrei Zaharescu , Edmond Boyer , Radu Horaud

We examine 3D reconstruction of architectural scenes in unordered sets of uncalibrated images. We introduce a linear method to self-calibrate and find the metric reconstruction of a camera pair. We assume unknown and different focal lengths…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Nikos Melanitis , Petros Maragos

We introduce a new approach for estimating the 3D pose and the 3D shape of an object from a single image. Given a training set of view exemplars, we learn and select appearance-based discriminative parts which are mapped onto the 3D model…

Computer Vision and Pattern Recognition · Computer Science 2015-02-03 Menglong Zhu , Xiaowei Zhou , Kostas Daniilidis

We study the image-based geolocalization problem, aiming to localize ground-view query images on cartographic maps. Current methods often utilize cross-view localization techniques to match ground-view query images with 2D maps. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Mengjie Zhou , Liu Liu , Yiran Zhong , Andrew Calway