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The Multiplane Image (MPI), containing a set of fronto-parallel RGBA layers, is an effective and efficient representation for view synthesis from sparse inputs. Yet, its fixed structure limits the performance, especially for surfaces imaged…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Mingfang Zhang , Jinglu Wang , Xiao Li , Yifei Huang , Yoichi Sato , Yan Lu

We introduce the Normalized Matching Transformer (NMT), a deep learning approach for efficient and accurate sparse semantic keypoint matching between image pairs. NMT consists of a strong visual backbone, geometric feature refinement via…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Abtin Pourhadi , Paul Swoboda

We propose a method for the unsupervised reconstruction of a temporally-coherent sequence of surfaces from a sequence of time-evolving point clouds, yielding dense, semantically meaningful correspondences between all keyframes. We represent…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jan Bednarik , Vladimir G. Kim , Siddhartha Chaudhuri , Shaifali Parashar , Mathieu Salzmann , Pascal Fua , Noam Aigerman

Structural topology optimization (TO) is central to engineering design but remains computationally intensive due to complex physics and hard constraints. Existing deep-learning methods are limited to fixed square grids, a few hand-coded…

Machine Learning · Computer Science 2025-10-29 Amin Heyrani Nobari , Lyle Regenwetter , Cyril Picard , Ligong Han , Faez Ahmed

Segment Anything (SAM) has recently pushed the boundaries of segmentation by demonstrating zero-shot generalization and flexible prompting after training on over one billion masks. Despite this, its mask prediction accuracy often falls…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Zezhong Fan , Xiaohan Li , Topojoy Biswas , Kaushiki Nag , Kannan Achan

This paper describes new techniques for learning atlas-like representations of 3D surfaces, i.e. homeomorphic transformations from a 2D domain to surfaces. Compared to prior work, we propose two major contributions. First, instead of…

Computational Geometry · Computer Science 2022-06-14 Theo Deprelle , Thibault Groueix , Noam Aigerman , Vladimir G. Kim , Mathieu Aubry

The Large-scale 3D reconstruction, texturing and semantic mapping are nowadays widely used for automated driving vehicles, virtual reality and automatic data generation. However, most approaches are developed for RGB-D cameras with colored…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Haohao Hu , Hexing Yang , Jian Wu , Xiao Lei , Frank Bieder , Jan-Hendrik Pauls , Christoph Stiller

Modern multi-object tracking (MOT) systems usually model the trajectories by associating per-frame detections. However, when camera motion, fast motion, and occlusion challenges occur, it is difficult to ensure long-range tracking or even…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Shoudong Han , Piao Huang , Hongwei Wang , En Yu , Donghaisheng Liu , Xiaofeng Pan , Jun Zhao

The I-patch is a multi-sided surface representation, defined as a combination of implicit ribbon and bounding surfaces, whose pairwise intersections determine the natural boundaries of the patch. Our goal is to show how a collection of…

Computational Geometry · Computer Science 2022-04-26 Ágoston Sipos , Tamás Várady , Péter Salvi

Dense geometric matching determines the dense pixel-wise correspondence between a source and support image corresponding to the same 3D structure. Prior works employ an encoder of transformer blocks to correlate the two-frame features.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Shengjie Zhu , Xiaoming Liu

Material node graphs are programs that generate the 2D channels of procedural materials, including geometry such as roughness and displacement maps, and reflectance such as albedo and conductivity maps. They are essential in computer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Jonas Belouadi , Tamy Boubekeur , Adrien Kaiser

We present a suite of techniques for jointly optimizing triangle meshes and shading models to match the appearance of reference scenes. This capability has a number of uses, including appearance-preserving simplification of extremely…

Graphics · Computer Science 2021-04-12 Jon Hasselgren , Jacob Munkberg , Jaakko Lehtinen , Miika Aittala , Samuli Laine

Deep image matting methods have achieved increasingly better results on benchmarks (e.g., Composition-1k/alphamatting.com). However, the robustness, including robustness to trimaps and generalization to images from different domains, is…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Yutong Dai , Brian Price , He Zhang , Chunhua Shen

We present VMap, a map-like rectangular space-filling visualization, to perform vertex-centric graph exploration. Existing visualizations have limited support for quality optimization among rectangular aspect ratios, vertex-edge…

Graphics · Computer Science 2023-06-02 Jiayi Xu , Han-Wei Shen

In this paper, we propose the Matting Anything Model (MAM), an efficient and versatile framework for estimating the alpha matte of any instance in an image with flexible and interactive visual or linguistic user prompt guidance. MAM offers…

Computer Vision and Pattern Recognition · Computer Science 2023-11-20 Jiachen Li , Jitesh Jain , Humphrey Shi

This paper solves the problem of computing conformal structures of general 2-manifolds represented as triangle meshes. We compute conformal structures in the following way: first compute homology bases from simplicial complex structures,…

Graphics · Computer Science 2007-05-23 Xianfeng Gu , Shing-Tung Yau

Polygonal meshes have become the standard for discretely approximating 3D shapes, thanks to their efficiency and high flexibility in capturing non-uniform shapes. This non-uniformity, however, leads to irregularity in the mesh structure,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Giuseppe Vecchio , Luca Prezzavento , Carmelo Pino , Francesco Rundo , Simone Palazzo , Concetto Spampinato

The Voronoi diagram-based dual-front active contour models are known as a powerful and efficient way for addressing the image segmentation and domain partitioning problems. In the basic formulation of the dual-front models, the evolving…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Da Chen , Jack Spencer , Jean-Marie Mirebeau , Ke Chen , Minglei Shu , Laurent D. Cohen

Recent approaches attempt to adapt powerful interactive segmentation models, such as SAM, to interactive matting and fine-tune the models based on synthetic matting datasets. However, models trained on synthetic data fail to generalize to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Ruihao Xia , Yu Liang , Peng-Tao Jiang , Hao Zhang , Qianru Sun , Yang Tang , Bo Li , Pan Zhou

Segment Anything Model (SAM) is drastically accelerating the speed and accuracy of automatically segmenting and labeling large Red-Green-Blue (RGB) imagery datasets. However, SAM is unable to segment and label images outside of the visible…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 James E. Gallagher , Aryav Gogia , Edward J. Oughton