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This paper presents a novel method, MaskMVS, to solve depth estimation for unstructured multi-view image-pose pairs. In the plane-sweep procedure, the depth planes are sampled by histogram matching that ensures covering the depth range of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Yuxin Hou , Arno Solin , Juho Kannala

Multidimensional projections (MP) are among the most essential approaches in the visual analysis of multidimensional data. It transforms multidimensional data into two-dimensional representations that may be shown as scatter plots while…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Maniru Ibrahim , Thales Vieira

Multidimensional Projection is a fundamental tool for high-dimensional data analytics and visualization. With very few exceptions, projection techniques are designed to map data from a high-dimensional space to a visual space so as to…

Graphics · Computer Science 2020-09-04 Harish Doraiswamy , Julien Tierny , Paulo J. S. Silva , Luis Gustavo Nonato , Claudio Silva

Multimodal remote sensing image (MRSI) matching is pivotal for cross-modal fusion, localization, and object detection, but it faces severe challenges due to geometric, radiometric, and viewpoint discrepancies across imaging modalities.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Peihao Wu , Yongxiang Yao , Wenfei Zhang , Dong Wei , Yi Wan , Yansheng Li , Yongjun Zhang

In computer vision, estimating the six-degree-of-freedom pose from an RGB image is a fundamental task. However, this task becomes highly challenging in multi-object scenes. Currently, the best methods typically employ an indirect strategy,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Xin Liu , Hao Wang , Shibei Xue , Dezong Zhao

Multimodal large language models (MLLMs) have achieved strong performance on vision-language tasks, yet often suffer from inefficiencies due to redundant visual tokens. Existing token merging methods reduce sequence length but frequently…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Mouxiao Huang , Borui Jiang , Dehua Zheng , Hailin Hu , Kai Han , Xinghao Chen

We present a method for learning an embedding that places images of humans in similar poses nearby. This embedding can be used as a direct method of comparing images based on human pose, avoiding potential challenges of estimating body…

Computer Vision and Pattern Recognition · Computer Science 2015-07-02 Greg Mori , Caroline Pantofaru , Nisarg Kothari , Thomas Leung , George Toderici , Alexander Toshev , Weilong Yang

Accurate and real-time three-dimensional (3D) pose estimation is challenging in resource-constrained and dynamic environments owing to its high computational complexity. To address this issue, this study proposes a novel cooperative…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Hyun-Ho Choi , Kangsoo Kim , Ki-Ho Lee , Kisong Lee

Significant strides have been made in enhancing the accuracy of Multi-View Stereo (MVS)-based 3D reconstruction. However, untextured areas with unstable photometric consistency often remain incompletely reconstructed. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Rongxuan Tan , Qing Wang , Xueyan Wang , Chao Yan , Yang Sun , Youyang Feng

With the rapid development of multimodal learning, the image-text matching task, as a bridge connecting vision and language, has become increasingly important. Based on existing research, this study proposes an innovative visual semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Wenjing Chen

Estimating 3D human poses only from a 2D human pose sequence is thoroughly explored in recent years. Yet, prior to this, no such work has attempted to unify 2D and 3D pose representations in the shared feature space. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zhenyu Zhang , Wenhao Chai , Zhongyu Jiang , Tian Ye , Mingli Song , Jenq-Neng Hwang , Gaoang Wang

In this work, we propose a novel approach to prioritize the depth map computation of multi-view stereo (MVS) to obtain compact 3D point clouds of high quality and completeness at low computational cost. Our prioritization approach operates…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Christian Mostegel , Friedrich Fraundorfer , Horst Bischof

We consider the robust multi-dimensional scaling (RMDS) problem in this paper. The goal is to localize point locations from pairwise distances that may be corrupted by outliers. Inspired by classic MDS theories, and nonconvex works for the…

Machine Learning · Statistics 2025-01-07 Tong Deng , Tianming Wang

We present function preserving projections (FPP), a scalable linear projection technique for discovering interpretable relationships in high-dimensional data. Conventional dimension reduction methods aim to maximally preserve the global…

Machine Learning · Computer Science 2019-09-27 Shusen Liu , Rushil Anirudh , Jayaraman J. Thiagarajan , Peer-Timo Bremer

The Morse-Smale complex is a standard tool in visual data analysis. The classic definition is based on a continuous view of the gradient of a scalar function where its zeros are the critical points. These points are connected via gradient…

Computational Geometry · Computer Science 2024-09-10 Son Le Thanh , Michael Ankele , Tino Weinkauf

Dimension reduction and data visualization aim to project a high-dimensional dataset to a low-dimensional space while capturing the intrinsic structures in the data. It is an indispensable part of modern data science, and many dimensional…

Machine Learning · Statistics 2022-10-26 Rong Ma , Eric D. Sun , James Zou

Recovering multi-person 3D poses with absolute scales from a single RGB image is a challenging problem due to the inherent depth and scale ambiguity from a single view. Addressing this ambiguity requires to aggregate various cues over the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Jianan Zhen , Qi Fang , Jiaming Sun , Wentao Liu , Wei Jiang , Hujun Bao , Xiaowei Zhou

Geodesic distance matrices can reveal shape properties that are largely invariant to non-rigid deformations, and thus are often used to analyze and represent 3-D shapes. However, these matrices grow quadratically with the number of points.…

Machine Learning · Statistics 2018-04-02 Javier S. Turek , Alexander Huth

Sparse representation of 3D images is considered within the context of data reduction. The goal is to produce high quality approximations of 3D images using fewer elementary components than the number of intensity points in the 3D array.…

Image and Video Processing · Electrical Eng. & Systems 2019-06-12 Laura Rebollo-Neira , Daniel Whitehouse

Conventional vision algorithms adopt a single type of feature or a simple concatenation of multiple features, which is always represented in a high-dimensional space. In this paper, we propose a novel unsupervised spectral embedding…

Computer Vision and Pattern Recognition · Computer Science 2015-08-05 Mengyang Yu , Li Liu , Ling Shao