Cited by 976Advanced Vision and ImagingRobotic Mechanisms and DynamicsPolynomial and algebraic computation

Complete solution classification for the perspective-three-point problem

Xiao-Shan Gao, Xiao-Rong Hou, Jianliang Tang, Hang-Fei Cheng·2003·IEEE Transactions on Pattern Analysis and Machine Intelligence

Abstract

We use two approaches to solve the perspective-three-point (P3P) problem: the algebraic approach and the geometric approach. In the algebraic approach, we use Wu-Ritt's zero decomposition algorithm to give a complete triangular decomposition for the P3P equation system. This decomposition provides the first complete analytical solution to the P3P problem. We also give a complete solution classification for the P3P equation system, i.e., we give explicit criteria for the P3P problem to have one, two, three, and four solutions. Combining the analytical solutions with the criteria, we provide an algorithm, CASSC, which may be used to find complete and robust numerical solutions to the P3P problem. In the geometric approach, we give some pure geometric criteria for the number of real physical solutions.

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Crossref · 10.1109/tpami.2003.1217599

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Authors
Gao, X.-S., Hou, X.-R., Tang, J., & Cheng, H.-F.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Pennsylvania State University (US)
Venue
IEEE Transactions on Pattern Analysis and Machine Intelligence
Published
2003-08
Volume
25
Issue
8
Pages
930-943
ISSN
0162-8828 (ISSN-L)
OpenAlex
W2097649661
Cited by
976
References
24
Citations by year
2026: 51 · 2025: 81 · 2024: 78 · 2023: 101 · 2022: 83 · 2021: 90 · 2020: 90 · 2019: 93 · 2018: 62 · 2017: 38 · 2016: 26 · 2015: 32 · 2014: 27 · 2013: 21 · 2012: 12
FWCI
6.89
Type
journal article
Language
en
Open access
closed
Locations
IEEE Transactions on Pattern Analysis and Machine Intelligence (publishedVersion)
Funders
  • National Natural Science Foundation of China
  • Chinese Academy of Sciences
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Vision and Imaging
  • Physical Sciences › Engineering › Control and Systems Engineering › Robotic Mechanisms and Dynamics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Polynomial and algebraic computation
Keywords
classification of solutions, triangular decomposition, algebraic geometry, camera pose estimation, real solutions

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