Search Results for author: Georgios Evangelidis

Found 15 papers, 3 papers with code

Rethinking Vision Transformers for MobileNet Size and Speed

6 code implementations ICCV 2023 Yanyu Li, Ju Hu, Yang Wen, Georgios Evangelidis, Kamyar Salahi, Yanzhi Wang, Sergey Tulyakov, Jian Ren

With the success of Vision Transformers (ViTs) in computer vision tasks, recent arts try to optimize the performance and complexity of ViTs to enable efficient deployment on mobile devices.

EfficientFormer: Vision Transformers at MobileNet Speed

10 code implementations2 Jun 2022 Yanyu Li, Geng Yuan, Yang Wen, Ju Hu, Georgios Evangelidis, Sergey Tulyakov, Yanzhi Wang, Jian Ren

Our work proves that properly designed transformers can reach extremely low latency on mobile devices while maintaining high performance.

An Overview of Depth Cameras and Range Scanners Based on Time-of-Flight Technologies

no code implementations12 Dec 2020 Radu Horaud, Miles Hansard, Georgios Evangelidis, Clement Menier

Time-of-flight (TOF) cameras are sensors that can measure the depths of scene-points, by illuminating the scene with a controlled laser or LED source, and then analyzing the reflected light.

Camera Calibration

Ego-Motion Alignment from Face Detections for Collaborative Augmented Reality

no code implementations5 Oct 2020 Branislav Micusik, Georgios Evangelidis

Sharing virtual content among multiple smart glasses wearers is an essential feature of a seamless Collaborative Augmented Reality experience.

Visual Localization

Renormalization for Initialization of Rolling Shutter Visual-Inertial Odometry

no code implementations14 Aug 2020 Branislav Micusik, Georgios Evangelidis

In this paper we deal with the initialization problem of a visual-inertial odometry system with rolling shutter cameras.

Revisiting visual-inertial structure from motion for odometry and SLAM initialization

no code implementations10 Jun 2020 Georgios Evangelidis, Branislav Micusik

In this paper, an efficient closed-form solution for the state initialization in visual-inertial odometry (VIO) and simultaneous localization and mapping (SLAM) is presented.

Simultaneous Localization and Mapping

Joint Alignment of Multiple Point Sets with Batch and Incremental Expectation-Maximization

no code implementations6 Sep 2016 Georgios Evangelidis, Radu Horaud

Solutions to this problem are often approximated by repeatedly solving for pairwise registration, which results in an uneven treatment of the sets forming a pair: a model set and a data set.

Clustering Surface Reconstruction

Robust Head-Pose Estimation Based on Partially-Latent Mixture of Linear Regressions

no code implementations31 Mar 2016 Vincent Drouard, Radu Horaud, Antoine Deleforge, Silèye Ba, Georgios Evangelidis

Head-pose estimation has many applications, such as social event analysis, human-robot and human-computer interaction, driving assistance, and so forth.

Face Alignment Head Pose Estimation

Continuous Action Recognition Based on Sequence Alignment

no code implementations2 Jun 2014 Kaustubh Kulkarni, Georgios Evangelidis, Jan Cech, Radu Horaud

Continuous action recognition is more challenging than isolated recognition because classification and segmentation must be simultaneously carried out.

Action Recognition Dynamic Time Warping +2

Cross-calibration of Time-of-flight and Colour Cameras

no code implementations31 Jan 2014 Miles Hansard, Georgios Evangelidis, Quentin Pelorson, Radu Horaud

It is desirable to merge the depth and colour information, in order to obtain a coherent scene representation.

Automatic Detection of Calibration Grids in Time-of-Flight Images

no code implementations24 Jan 2014 Miles Hansard, Radu Horaud, Michel Amat, Georgios Evangelidis

It is convenient to calibrate time-of-flight cameras by established methods, using images of a chequerboard pattern.

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