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Multiview 3D face modeling has attracted increasing attention recently and has become one of the potential avenues in future video systems. We aim to make more reliable and robust automatic feature extraction and natural 3D feature…

Computer Vision and Pattern Recognition · Computer Science 2009-12-04 Alireza Ghahari , Reza Aghaeizadeh Zoroofi

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori

Appearance-based gaze estimation has shown great promise in many applications by using a single general-purpose camera as the input device. However, its success is highly depending on the availability of large-scale well-annotated gaze…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Lingyu Du , Xucong Zhang , Guohao Lan

Extracting point correspondences from two or more views of a scene is a fundamental computer vision problem with particular importance for relative camera pose estimation and structure-from-motion. Existing local feature matching…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Dominik A. Kloepfer , João F. Henriques , Dylan Campbell

Recently, a lot of attention has been focused on the incorporation of 3D data into face analysis and its applications. Despite providing a more accurate representation of the face, 3D facial images are more complex to acquire than 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Araceli Morales , Gemma Piella , Federico M. Sukno

We present a method to map 2D image observations of a scene to a persistent 3D scene representation, enabling novel view synthesis and disentangled representation of the movable and immovable components of the scene. Motivated by the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Prafull Sharma , Ayush Tewari , Yilun Du , Sergey Zakharov , Rares Ambrus , Adrien Gaidon , William T. Freeman , Fredo Durand , Joshua B. Tenenbaum , Vincent Sitzmann

In real-world applications, dynamic scenarios require the models to possess the capability to learn new tasks continuously without forgetting the old knowledge. Experience-Replay methods store a subset of the old images for joint training.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Xinyuan Gao , Songlin Dong , Yuhang He , Xing Wei , Yihong Gong

Depth estimation is a crucial technology in robotics. Recently, self-supervised depth estimation methods have demonstrated great potential as they can efficiently leverage large amounts of unlabelled real-world data. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Siyu Chen , Hong Liu , Wenhao Li , Ying Zhu , Guoquan Wang , Jianbing Wu

Accurate 3D scene reconstruction is essential for numerous medical tasks. Given the challenges in obtaining ground truth data, there has been an increasing focus on self-supervised learning (SSL) for endoscopic depth estimation as a basis…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Beilei Cui , Long Bai , Mobarakol Islam , An Wang , Zhiqi Ma , Yiming Huang , Feng Li , Zhen Chen , Zhongliang Jiang , Nassir Navab , Hongliang Ren

We introduce Structured 3D Features, a model based on a novel implicit 3D representation that pools pixel-aligned image features onto dense 3D points sampled from a parametric, statistical human mesh surface. The 3D points have associated…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Enric Corona , Mihai Zanfir , Thiemo Alldieck , Eduard Gabriel Bazavan , Andrei Zanfir , Cristian Sminchisescu

Full 3D estimation of human pose from a single image remains a challenging task despite many recent advances. In this paper, we explore the hypothesis that strong prior information about scene geometry can be used to improve pose estimation…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Zhe Wang , Liyan Chen , Shaurya Rathore , Daeyun Shin , Charless Fowlkes

Single view depth estimation models can be trained from video footage using a self-supervised end-to-end approach with view synthesis as the supervisory signal. This is achieved with a framework that predicts depth and camera motion, with a…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Maarten Schellevis

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

In this paper, we propose Contextual Guided Segmentation (CGS) framework for video instance segmentation in three passes. In the first pass, i.e., preview segmentation, we propose Instance Re-Identification Flow to estimate main properties…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Trung-Nghia Le , Tam V. Nguyen , Minh-Triet Tran

Accurately estimating the 3D pose of the camera wearer in egocentric video sequences is crucial to modeling human behavior in virtual and augmented reality applications. The task presents unique challenges due to the limited visibility of…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Luca Scofano , Alessio Sampieri , Edoardo De Matteis , Indro Spinelli , Fabio Galasso

This paper presents a part-based face detection approach where the spatial relationship between the face parts is represented by a hidden 3D model with six parameters. The computational complexity of the search in the six dimensional pose…

Computer Vision and Pattern Recognition · Computer Science 2017-12-29 Adrian Barbu , Nathan Lay , Gary Gramajo

Human 3D pose estimation from a single image is a challenging task with numerous applications. Convolutional Neural Networks (CNNs) have recently achieved superior performance on the task of 2D pose estimation from a single image, by…

Computer Vision and Pattern Recognition · Computer Science 2017-01-06 Wenzheng Chen , Huan Wang , Yangyan Li , Hao Su , Zhenhua Wang , Changhe Tu , Dani Lischinski , Daniel Cohen-Or , Baoquan Chen

We present an end-to-end 3D reconstruction method for a scene by directly regressing a truncated signed distance function (TSDF) from a set of posed RGB images. Traditional approaches to 3D reconstruction rely on an intermediate…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Zak Murez , Tarrence van As , James Bartolozzi , Ayan Sinha , Vijay Badrinarayanan , Andrew Rabinovich

Recently, seismic facies classification based on convolutional neural networks (CNN) has garnered significant research interest. However, existing CNN-based supervised learning approaches necessitate massive labeled data. Labeling is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Kewen Li , Wenlong Liu , Yimin Dou , Zhifeng Xu , Hongjie Duan , Ruilin Jing

In this paper, we address the problem of camera pose estimation in outdoor and indoor scenarios. In comparison to the currently top-performing methods that rely on 2D to 3D matching, we propose a model that can directly regress the camera…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Tony Ng , Adrian Lopez-Rodriguez , Vassileios Balntas , Krystian Mikolajczyk
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