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Andrea Torsello

5 accepted papers

2025

Generating Graphs via Spectral Diffusion

ICLR 2025poster

In this paper, we present GGSD, a novel graph generative model based on 1) the spectral decomposition of the graph Laplacian matrix and 2) a diffusion process. Specifically, we propose to use a denoising model to sample eigenvectors and eigenvalues from which we can reconstruct the graph Laplacian a…

Cited by 0SourcePDFScholar
2020

The Average Mixing Kernel Signature

ECCV 2020poster

We introduce the Average Mixing Kernel Signature (AMKS), a novel signature for points on non-rigid three-dimensional shapes based on the average mixing kernel and continuous-time quantum walks. The average mixing kernel holds information on the average transition probabilities of a quantum walk betw…

2017

Parameter-Free Lens Distortion Calibration of Central Cameras

ICCV 2017poster

At the core of many Computer Vision applications stands the need to define a mathematical model describing the imaging process. To this end, the pinhole model with radial distortion is probably the most commonly used, as it balances low complexity with a precision that is sufficient for most applica…

Cited by 20PDFScholar
2015

A Statistical Model of Riemannian Metric Variation for Deformable Shape Analysis

CVPR 2015poster

The analysis of deformable 3D shape is often cast in terms of the shape's intrinsic geometry due to its invariance to a wide range of non-rigid deformations. However, object's plasticity in non-rigid transformation often results in transformations that are not completely isometric in the surface's…

Cited by 26SourcePDFScholar
2015

Adopting an Unconstrained Ray Model in Light-Field Cameras for 3D Shape Reconstruction

CVPR 2015poster

Due to their recent availability as off-the-shelf commercial devices, light-field cameras has gathered increasing attention from both scientific community and industrial operators. However, their composite imaging formation process hinders the ability to exploit the well consolidated stack of calibr…

Cited by 22SourcePDFScholar