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Ignas Budvytis

10 accepted papers

2024

DiaLoc: An Iterative Approach to Embodied Dialog Localization

CVPR 2024poster

Multimodal learning has advanced the performance for many vision-language tasks. However most existing works in embodied dialog research focus on navigation and leave the localization task understudied. The few existing dialog-based localization approaches assume the availability of entire dialog pr…

Cited by 3SourcePDFScholar
2023

HuManiFlow: Ancestor-Conditioned Normalising Flows on SO(3) Manifolds for Human Pose and Shape Distribution Estimation

CVPR 2023poster

Monocular 3D human pose and shape estimation is an ill-posed problem since multiple 3D solutions can explain a 2D image of a subject. Recent approaches predict a probability distribution over plausible 3D pose and shape parameters conditioned on the image. We show that these approaches exhibit a tra…

2023

IMP: Iterative Matching and Pose Estimation With Adaptive Pooling

CVPR 2023poster

Previous methods solve feature matching and pose estimation using a two-stage process by first finding matches and then estimating the pose. As they ignore the geometric relationships between the two tasks, they focus on either improving the quality of matches or filtering potential outliers, leadin…

2022

Efficient Large-Scale Localization by Global Instance Recognition

CVPR 2022poster

Hierarchical frameworks consisting of both coarse and fine localization are often used as the standard pipeline for large-scale visual localization. Despite their promising performance in simple environments, they still suffer from low efficiency and accuracy in large-scale scenes, especially under…

Cited by 23PDFScholar
2022

Multi-View Depth Estimation by Fusing Single-View Depth Probability With Multi-View Geometry

CVPR 2022oral

Multi-view depth estimation methods typically require the computation of a multi-view cost-volume, which leads to huge memory consumption and slow inference. Furthermore, multi-view matching can fail for texture-less surfaces, reflective surfaces and moving objects. For such failure modes, single-vi…

Cited by 69PDFcodeScholar
2021

Estimating and Exploiting the Aleatoric Uncertainty in Surface Normal Estimation

ICCV 2021poster

Surface normal estimation from a single image is an important task in 3D scene understanding. In this paper, we address two limitations shared by the existing methods: the inability to estimate the aleatoric uncertainty and lack of detail in the prediction. The proposed network estimates the per-pix…

Cited by 127PDFcodeScholar
2021

Hierarchical Kinematic Probability Distributions for 3D Human Shape and Pose Estimation From Images in the Wild

ICCV 2021poster

This paper addresses the problem of 3D human body shape and pose estimation from an RGB image. This is often an ill-posed problem, since multiple plausible 3D bodies may match the visual evidence present in the input - particularly when the subject is occluded. Thus, it is desirable to estimate a di…

Cited by 76PDFcodeScholar
2021

PX-NET: Simple and Efficient Pixel-Wise Training of Photometric Stereo Networks

ICCV 2021poster

Retrieving accurate 3D reconstructions of objects from the way they reflect light is a very challenging task in computer vision. Despite more than four decades since the definition of the Photometric Stereo problem, most of the literature has had limited success when global illumination effects such…

Cited by 69PDFScholar
2021

Probabilistic 3D Human Shape and Pose Estimation From Multiple Unconstrained Images in the Wild

CVPR 2021poster

This paper addresses the problem of 3D human body shape and pose estimation from RGB images. Recent progress in this field has focused on single images, video or multi-view images as inputs. In contrast, we propose a new task: shape and pose estimation from a group of multiple images of a human subj…

Cited by 72PDFScholar