AI RESEARCH
P3P Made Easy
arXiv CS.CV
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ArXi:2508.01312v4 Announce Type: replace We revisit the classical Perspective-Three-Point (P3P) problem, which aims to recover the absolute pose of a calibrated camera from three 2D-3D correspondences. It has long been known that P3P can be reduced to a quartic polynomial with analytically simple and computationally efficient coefficients. However, this elegant formulation has been largely overlooked in modern literature.