Barrier Method for Inequality Constrained Factor Graph Optimization with Application to Model Predictive Control

Fuente: arXiv
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Autori principali: Abdelkarim, Anas, Voos, Holger, Görges, Daniel
Natura: Preprint
Pubblicazione: 2025
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author Abdelkarim, Anas
Voos, Holger
Görges, Daniel
author_facet Abdelkarim, Anas
Voos, Holger
Görges, Daniel
contents Factor graphs have demonstrated remarkable efficiency for robotic perception tasks, particularly in localization and mapping applications. However, their application to optimal control problems -- especially Model Predictive Control (MPC) -- has remained limited due to fundamental challenges in constraint handling. This paper presents a novel integration of the Barrier Interior Point Method (BIPM) with factor graphs, implemented as an open-source extension to the widely adopted g2o framework. Our approach introduces specialized inequality factor nodes that encode logarithmic barrier functions, thereby overcoming the quadratic-form limitations of conventional factor graph formulations. To the best of our knowledge, this is the first g2o-based implementation capable of efficiently handling both equality and inequality constraints within a unified optimization backend. We validate the method through a multi-objective adaptive cruise control application for autonomous vehicles. Benchmark comparisons with state-of-the-art constraint-handling techniques demonstrate faster convergence and improved computational efficiency. (Code repository: https://github.com/snt-arg/bipm_g2o)
format Preprint
id arxiv_https___arxiv_org_abs_2506_14341
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Barrier Method for Inequality Constrained Factor Graph Optimization with Application to Model Predictive Control
Abdelkarim, Anas
Voos, Holger
Görges, Daniel
Robotics
Systems and Control
Factor graphs have demonstrated remarkable efficiency for robotic perception tasks, particularly in localization and mapping applications. However, their application to optimal control problems -- especially Model Predictive Control (MPC) -- has remained limited due to fundamental challenges in constraint handling. This paper presents a novel integration of the Barrier Interior Point Method (BIPM) with factor graphs, implemented as an open-source extension to the widely adopted g2o framework. Our approach introduces specialized inequality factor nodes that encode logarithmic barrier functions, thereby overcoming the quadratic-form limitations of conventional factor graph formulations. To the best of our knowledge, this is the first g2o-based implementation capable of efficiently handling both equality and inequality constraints within a unified optimization backend. We validate the method through a multi-objective adaptive cruise control application for autonomous vehicles. Benchmark comparisons with state-of-the-art constraint-handling techniques demonstrate faster convergence and improved computational efficiency. (Code repository: https://github.com/snt-arg/bipm_g2o)
title Barrier Method for Inequality Constrained Factor Graph Optimization with Application to Model Predictive Control
topic Robotics
Systems and Control
url https://arxiv.org/abs/2506.14341