Search Results for author: Ricardo Fabbri

Found 8 papers, 2 papers with code

TRPLP - Trifocal Relative Pose From Lines at Points

no code implementations CVPR 2020 Ricardo Fabbri, Timothy Duff, Hongyi Fan, Margaret H. Regan, David da Costa de Pinho, Elias Tsigaridas, Charles W. Wampler, Jonathan D. Hauenstein, Peter J. Giblin, 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 (ii) three points and two lines through two of the points.

Pose Estimation Structure from Motion

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 new minimal problem for relative pose estimation mixing point features with lines incident at points observed in three views and its efficient homotopy continuation solver.

Pose Estimation Structure from Motion

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.

From Multiview Image Curves to 3D Drawings

no code implementations18 Sep 2016 Anil Usumezbas, Ricardo Fabbri, Benjamin B. Kimia

Reconstructing 3D scenes from multiple views has made impressive strides in recent years, chiefly by correlating isolated feature points, intensity patterns, or curvilinear structures.

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

Temporal stability in human interaction networks

2 code implementations29 Oct 2013 Renato Fabbri, Ricardo Fabbri, Deborah C. Antunes, Marilia M. Pisani, Osvaldo N. Oliveira Jr

The principal components of the participants in the topological metrics space remain practically unchanged as different sets of messages are considered.

Social and Information Networks Physics and Society I.5.3

An Image-Based Fluid Surface Pattern Model

no code implementations30 Sep 2013 Mauro de Amorim, Ricardo Fabbri, Lucia Maria dos Santos Pinto, Francisco Duarte Moura Neto

This work aims at generating a model of the ocean surface and its dynamics from one or more video cameras.

Dimensionality Reduction

Multi-q Pattern Classification of Polarization Curves

no code implementations10 May 2013 Ricardo Fabbri, Ivan N. Bastos, Francisco D. Moura Neto, Francisco J. P. Lopes, Wesley N. Goncalves, Odemir M. Bruno

An excellent classification rate was obtained, at a success rate of 90%, 80%, and 83% for low (cathodic), high (anodic), and both potential ranges, respectively, using only 2% of the original profile data.

Classification General Classification

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