Search Results for author: Sérgio Agostinho

Found 3 papers, 3 papers with code

Is Geometry Enough for Matching in Visual Localization?

1 code implementation24 Mar 2022 Qunjie Zhou, Sérgio Agostinho, Aljosa Osep, Laura Leal-Taixé

In this paper, we propose to go beyond the well-established approach to vision-based localization that relies on visual descriptor matching between a query image and a 3D point cloud.

Visual Localization

(Just) A Spoonful of Refinements Helps the Registration Error Go Down

1 code implementation ICCV 2021 Sérgio Agostinho, Aljoša Ošep, Alessio Del Bue, Laura Leal-Taixé

However, given the initial rotation estimate supplied by Kabsch, we show we can improve point correspondence learning during model training by extending the original optimization problem.

Point Cloud Registration

CvxPnPL: A Unified Convex Solution to the Absolute Pose Estimation Problem from Point and Line Correspondences

1 code implementation24 Jul 2019 Sérgio Agostinho, João Gomes, Alessio Del Bue

We present a new convex method to estimate 3D pose from mixed combinations of 2D-3D point and line correspondences, the Perspective-n-Points-and-Lines problem (PnPL).

Pose Estimation

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