Search Results for author: Benjamin Kimia

Found 12 papers, 1 papers with code

Trifocal Relative Pose from Lines at Points and its Efficient Solution

1 code implementation23 Mar 2019 Ricardo Fabbri, Timothy Duff, Hongyi Fan, Margaret Regan, David da Costa de Pinho, Elias Tsigaridas, Charles Wampler, Jonathan Hauenstein, Benjamin Kimia, Anton Leykin, Tomas Pajdla

We present a method for solving two minimal problems for relative camera pose estimation from three views, which are based on three view correspondences of i) three points and one line and the novel case of ii) three points and two lines through two of the points.

Pose Estimation

The Surfacing of Multiview 3D Drawings via Lofting and Occlusion Reasoning

no code implementations CVPR 2017 Anil Usumezbas, Ricardo Fabbri, Benjamin Kimia

The three-dimensional reconstruction of scenes from multiple views has made impressive strides in recent years, chiefly by methods correlating isolated feature points, intensities, or curvilinear structure.

Multiview Differential Geometry of Curves

no code implementations27 Apr 2016 Ricardo Fabbri, Benjamin Kimia

We address these challenges by laying the theoretical foundations of a framework based on the differential geometry of general curves, including stationary curves, occluding contours, and non-rigid curves, aiming at stereo correspondence, camera estimation (including calibration, pose, and multiview epipolar geometry), and 3D reconstruction given measured image curves.

3D Reconstruction

Robust pose tracking with a joint model of appearance and shape

no code implementations28 Jun 2018 Yuliang Guo, Lakshmi Narasimhan Govindarajan, Benjamin Kimia, Thomas Serre

We present a novel approach for estimating the 2D pose of an articulated object with an application to automated video analysis of small laboratory animals.

Pose Tracking

Shape-Biased Domain Generalization via Shock Graph Embeddings

no code implementations ICCV 2021 Maruthi Narayanan, Vickram Rajendran, Benjamin Kimia

There is an emerging sense that the vulnerability of Image Convolutional Neural Networks (CNN), i. e., sensitivity to image corruptions, perturbations, and adversarial attacks, is connected with Texture Bias.

Domain Generalization

GPU-Based Homotopy Continuation for Minimal Problems in Computer Vision

no code implementations CVPR 2022 Chiang-Heng Chien, Hongyi Fan, Ahmad Abdelfattah, Elias Tsigaridas, Stanimire Tomov, Benjamin Kimia

Homotopy Continuation (HC) can solve more complex problems without the stability issues, and with guarantees of a global solution, but they are known to be slow.

Pose Estimation

On the Instability of Relative Pose Estimation and RANSAC's Role

no code implementations CVPR 2022 Hongyi Fan, Joe Kileel, Benjamin Kimia

In this paper we study the numerical instabilities of the 5- and 7-point problems for essential and fundamental matrix estimation in multiview geometry.

Pose Estimation

Benchmarking Pedestrian Odometry: The Brown Pedestrian Odometry Dataset (BPOD)

no code implementations24 Dec 2021 David Charatan, Hongyi Fan, Benjamin Kimia

We present the Brown Pedestrian Odometry Dataset (BPOD) for benchmarking visual odometry algorithms in head-mounted pedestrian settings.

Benchmarking Position +1

Generalized Relative Neighborhood Graph (GRNG) for Similarity Search

no code implementations22 Aug 2022 Cole Foster, Berk Sevilmis, Benjamin Kimia

Similarity search is a fundamental building block for information retrieval on a variety of datasets.

Information Retrieval Retrieval

Minimal Solutions to Generalized Three-View Relative Pose Problem

no code implementations ICCV 2023 Yaqing Ding, Chiang-Heng Chien, Viktor Larsson, Karl Åström, Benjamin Kimia

For a generalized (or non-central) camera model, the minimal problem for two views of six points has efficient solvers.

Condition numbers in multiview geometry, instability in relative pose estimation, and RANSAC

no code implementations4 Oct 2023 Hongyi Fan, Joe Kileel, Benjamin Kimia

In this paper we introduce a general framework for analyzing the numerical conditioning of minimal problems in multiple view geometry, using tools from computational algebra and Riemannian geometry.

Pose Estimation

Geometry Depth Consistency in RGBD Relative Pose Estimation

no code implementations1 Jan 2024 Sourav Kumar, Chiang-Heng Chien, Benjamin Kimia

Relative pose estimation for RGBD cameras is crucial in a number of applications.

Pose Estimation

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