The official implementation of our CVPR 2021 paper - Hybrid Rotation Averaging: A Fast and Robust Rotation Averaging Approach

Last update: Dec 23, 2022

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Overview

Graph Optimizer

This repo contains the official implementation of our CVPR 2021 paper - Hybrid Rotation Averaging: A Fast and Robust Rotation Averaging Approach. This library contains not only rotation averaging solvers, but also some popular methods in 3D vision, such as translation averaging, clustering, etc. The library is designed to deal with large scale optimization problems, and is easy to extend. Feel free to contribute to this project.

1. Features

A library which solves the optimization problems in 3D vision.
A template-based graph module which is easy to extend and to manipulate graph structures.
Rotation averaging solvers achieves state-of-the-art.
Translation averaging solvers (LUD, BATA).
Clustering methods (coming soon).
Bundle adjustment (needs more time to prepare).

2. Compilation

The library is compiled and tested on Ubuntu 16.04. We would like to support more platforms in the future.

2.1 Basic Requirements

This project requires Eigen 3.2. And Ceres 1.14.0 is currently used for stable conversions between different rotation representations (I'm managing on removing this dependency). You can install all the dependencies through the ./scripts/dependencies.sh.

bash ./scripts/dependencies.sh

2.3 Build GraphOptim

cd GraphOptim
mkdir build && cd build
cmake ..
make -j8

3. Running Examples

3.1 Rotation Averaging

./build/bin/rotation_estimator --g2o_filename=../../data/synthetic/20_2.g2o

You can also try other g2o files.

3.2 Translation Averaging

The translation averaging methods are decoupled from another project, and are not fully tested.

./build/bin/position_estimator --g2o_filename=../../data/synthetic/20_2.g2o

Contact

If you have any questions, contact me by [email protected].

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Comments

Inputs of Translation Averaging Need Absolute Rotation of Each View and Relative Pose of Piar Views

Hi, Thanks your great work! There is a bug in your code: Description: Inputs of Translation Averaging Need Absolute Rotation of Each View and Relative Pose of View Pair , But in examples/position_estimator.cc: 56 view_graph.ReadG2OFile(g2o_filename); you only convey relative rotation and relative translation.

So, the following codes need to be corrected:

edge.cc:
replace : // node_t src = kInvalidNodeId; // node_t dst = kInvalidNodeId; with: ImageNode src; ImageNode dst; and correct construction fun correspondingly, view_graph.cc: ViewGraph::ReadG2OFile, add absolute rotation to edge.src and edge.dst. graph.inl: correct AddEdge and AddNodes etc. and some test functions.

opened by qingchenwuhou 2
rotation_estimator std::bad_alloc

@AIBluefisher HI,when I run the rotation_estimator ,the error like this: ./build/bin/rotation_estimator --g2o_filename=./data/synthetic/20_2.g2o I0120 19:03:26.052269 18845 hybrid_rotation_estimator.cc:94] Estimating Rotations Using LagrangeDual terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc Aborted (core dumped) also when I run the ./lagrange_dual_rotation_estimator_test dual_rotation_estimator_test Running main() from gtest_main.cc [==========] Running 15 tests from 1 test case. [----------] Global test environment set-up. [----------] 15 tests from LagrangeDualRotationAveragingTest [ RUN ] LagrangeDualRotationAveragingTest.smallTestNoNoise WARNING: Logging before InitGoogleLogging() is written to STDERR I0120 19:07:51.680837 19045 lagrange_dual_rotation_estimator_test.cc:88] Estimating Global Orientations using Lagrange Dual... free(): invalid pointer Aborted (core dumped)

opened by coder12333444 1
OpenMVG related code in this repo

Thank you for releasing the code related to your paper.

I noticed that there are multiple files that are coming from OpenMVG code repository.

| Topic | This Repo | OpenMVG | |-|-|-| | SVG | https://github.com/AIBluefisher/GraphOptim/blob/main/src/graph/svg_drawer.h | https://github.com/openMVG/openMVG/blob/develop/src/third_party/vectorGraphics/svgDrawer.hpp | |triplet| https://github.com/AIBluefisher/GraphOptim/blob/main/src/graph/triplet_extractor.h| https://github.com/openMVG/openMVG/blob/develop/src/openMVG/graph/triplet_finder.hpp | |ColorGradient|https://github.com/AIBluefisher/GraphOptim/blob/main/src/graph/color_gradient.h|https://github.com/openMVG/openMVG/blob/develop/src/openMVG/graphics/color_gradient.hpp| |l1 solver|https://github.com/AIBluefisher/GraphOptim/blob/main/src/solver/l1_solver.h|https://github.com/openMVG/openMVG/blob/develop/src/openMVG/numeric/l1_solver_admm.hpp| ...

There are also other files that have the same issue https://github.com/AIBluefisher/GraphOptim/blob/main/src/util/alignment.h ...

There is also code from other repositories like THeiaSfM here https://github.com/sweeneychris/TheiaSfM/blob/master/src/theia/sfm/global_pose_estimation/least_unsquared_deviation_position_estimator.h https://github.com/AIBluefisher/GraphOptim/blob/main/src/translation_averaging/lud_position_estimator.h

Please keep the initial copyright notice and respect the work that has been done by the open-source community before you. Changing the name of the file is not enough to claim ownership of it.

I appreciate that you see the direct value of OpenMVG code and are leveraging it for other work, but the opensource community can thrive better if we support each other, and keep initial copyrights and licenses in the file we are reusing.

cc @laurentkneip

opened by pmoulon 1

The official implementation of our CVPR 2021 paper - Hybrid Rotation Averaging: A Fast and Robust Rotation Averaging Approach

Related tags

Overview

Graph Optimizer

1. Features

2. Compilation

2.1 Basic Requirements

2.3 Build GraphOptim

3. Running Examples

3.1 Rotation Averaging

3.2 Translation Averaging

Contact

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Comments

Inputs of Translation Averaging Need Absolute Rotation of Each View and Relative Pose of Piar Views

rotation_estimator std::bad_alloc

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