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Johan Thunberg

6 accepted papers

2026

Fast Markov Random Field Optimisation for Topologically Noisy 3D Shape Matching

CVPR 2026

In many real-world applications of non-rigid shape matching, the shapes are subject to topological noise (i.e. varying genus). In this paper, we propose a novel formulation based on Markov Random Fields (MRF) that can handle these cases with topological noise. The solutions to our optimisation probl

Cited by 0SourcecodeScholar
2019

HiPPI: Higher-Order Projected Power Iterations for Scalable Multi-Matching

ICCV 2019poster

The matching of multiple objects (e.g. shapes or images) is a fundamental problem in vision and graphics. In order to robustly handle ambiguities, noise and repetitive patterns in challenging real-world settings, it is essential to take geometric consistency between points into account. Computationa…

Cited by 40PDFScholar
2017

A Combinatorial Solution to Non-Rigid 3D Shape-To-Image Matching

CVPR 2017poster

We propose a combinatorial solution for the problem of non-rigidly matching a 3D shape to 3D image data. To this end, we model the shape as a triangular mesh and allow each triangle of this mesh to be rigidly transformed to achieve a suitable matching to the image. By penalising the distance and the…

Cited by 19PDFScholar
2016

Linear Shape Deformation Models With Local Support Using Graph-Based Structured Matrix Factorisation

CVPR 2016spotlight

Representing 3D shape deformations by high-dimensional linear models has many applications in computer vision and medical imaging. Commonly, using Principal Components Analysis a low-dimensional subspace of the high-dimensional shape space is determined. However, the resulting factors (the most domi…

Cited by 19PDFScholar
2015

A Solution for Multi-Alignment by Transformation Synchronisation

CVPR 2015poster

The alignment of a set of objects by means of transformations plays an important role in computer vision. Whilst the case for only two objects can be solved globally, when multiple objects are considered usually iterative methods are used. In practice the iterative methods perform well if the relati…

Cited by 70SourcePDFScholar