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This paper introduces a novel real-time algorithm for facial landmark tracking. Compared to detection, tracking has both additional challenges and opportunities. Arguably the most important aspect in this domain is updating a tracker's…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Enrique Sánchez-Lozano , Brais Martinez , Georgios Tzimiropoulos , Michel Valstar

A significant problem with most functional data analyses is that of misaligned curves. Without adjustment, even an analysis as simple as estimation of the mean will fail. One common method to synchronize a set of curves involves equating…

Applications · Statistics 2007-12-18 Gareth M. James

We present a novel sparse modeling approach to non-rigid shape matching using only the ability to detect repeatable regions. As the input to our algorithm, we are given only two sets of regions in two shapes; no descriptors are provided so…

Graphics · Computer Science 2012-10-01 J. Pokrass , A. M. Bronstein , M. M. Bronstein , P. Sprechmann , G. Sapiro

Advancement of imaging techniques enables consecutive image sequences to be acquired for quality monitoring of manufacturing production lines. Registration for these image sequences is essential for in-line pattern inspection and metrology,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Rui Ma , Xian Du

Statistical shape modeling (SSM) is a powerful computational framework for quantifying and analyzing the geometric variability of anatomical structures, facilitating advancements in medical research, diagnostics, and treatment planning.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Krithika Iyer , Jadie Adams , Shireen Y. Elhabian

Point cloud registration (PCR) is an essential task in 3D vision. Existing methods achieve increasingly higher accuracy. However, a large proportion of non-overlapping points in point cloud registration consume a lot of computational…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Yang Ai , Qiang Bai , Jindong Li , Xi Yang

Removing outlier correspondences is one of the critical steps for successful feature-based point cloud registration. Despite the increasing popularity of introducing deep learning methods in this field, spatial consistency, which is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Xuyang Bai , Zixin Luo , Lei Zhou , Hongkai Chen , Lei Li , Zeyu Hu , Hongbo Fu , Chiew-Lan Tai

In this paper we propose a fully automatic method for shape correspondence that is widely applicable, and especially effective for non isometric shapes and shapes of different topology. We observe that fully-automatic shape correspondence…

Graphics · Computer Science 2020-08-26 Michal Edelstein , Danielle Ezuz , Mirela Ben-Chen

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

We describe new approaches for distances between pairs of 2-dimensional surfaces (embedded in 3-dimensional space) that use local structures and global information contained in inter-structure geometric relationships. We present algorithms…

Numerical Analysis · Mathematics 2015-05-30 D. Boyer , Y. Lipman , E. St. Clair , J. Puente , T. Funkhouser , B. Patel , J. Jernvall , I. Daubechies

Accurate registration of 2D imagery with point clouds is a key technology for image-LiDAR point cloud fusion, camera to laser scanner calibration and camera localization. Despite continuous improvements, automatic registration of 2D and 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Huai Yu , Weikun Zhen , Wen Yang , Sebastian Scherer

Congruent Procrustes analysis aims to find the best matching between two point sets through rotation, reflection and translation. We formulate the Procrustes problem for hyperbolic spaces, review the canonical definition of the center of…

Signal Processing · Electrical Eng. & Systems 2021-07-07 Puoya Tabaghi , Ivan Dokmanic

Automatic registration of multimodal remote sensing data (e.g., optical, LiDAR, SAR) is a challenging task due to the significant non-linear radiometric differences between these data. To address this problem, this paper proposes a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Yuanxin Ye , Jie Shan , Lorenzo Bruzzone , Li Shen

Deformable image registration estimates voxel-wise correspondences between images through spatial transformations, and plays a key role in medical imaging. While deep learning methods have significantly reduced runtime, efficiently handling…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Tianran Li , Marius Staring , Yuchuan Qiao

In this article, we discuss the numerical solution of diffusion equations on random surfaces within the isogeometric framework. We describe in detail, how diffusion problems on random surfaces can be modelled and how quantities of interest…

Numerical Analysis · Mathematics 2022-04-28 Wei Huang , Michael Multerer

We study zero-shot 3D alignment of two given meshes, using a text prompt describing their spatial relation -- an essential capability for content creation and scene assembly. Earlier approaches primarily rely on geometric alignment…

Graphics · Computer Science 2026-03-03 Rotem Gatenyo , Ohad Fried

This paper studies the interplay between kinematics (position and velocity) and appearance cues for establishing correspondences in multi-target pedestrian tracking. We investigate tracking-by-detection approaches based on a deep learning…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Borna Bićanić , Marin Oršić , Ivan Marković , Siniša Šegvić , Ivan Petrović

Parametric spatial transformation models have been successfully applied to image registration tasks. In such models, the transformation of interest is parameterized by a fixed set of basis functions as for example B-splines. Each basis…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Robin Sandkühler , Simon Andermatt , Grzegorz Bauman , Sylvia Nyilas , Christoph Jud , Philippe C. Cattin

Aligning a template to 3D human point clouds is a long-standing problem crucial for tasks like animation, reconstruction, and enabling supervised learning pipelines. Recent data-driven methods leverage predicted surface correspondences.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Riccardo Marin , Enric Corona , Gerard Pons-Moll

Information transfer between triangle meshes is of great importance in computer graphics and geometry processing. To facilitate this process, a smooth and accurate map is typically required between the two meshes. While such maps can…

Graphics · Computer Science 2018-01-09 Danielle Ezuz , Justin Solomon , Mirela Ben-Chen
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