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The framework of variational autoencoders (VAEs) provides a principled method for jointly learning latent-variable models and corresponding inference models. However, the main drawback of this approach is the blurriness of the generated…

机器学习 · 计算机科学 2020-07-01 Ioannis Gatopoulos , Maarten Stol , Jakub M. Tomczak

Recovering temporally consistent 3D human body pose, shape and motion from a monocular video is a challenging task due to (self-)occlusions, poor lighting conditions, complex articulated body poses, depth ambiguity, and limited availability…

计算机视觉与模式识别 · 计算机科学 2023-11-21 Sushovan Chanda , Amogh Tiwari , Lokender Tiwari , Brojeshwar Bhowmick , Avinash Sharma , Hrishav Barua

Despite the advances in the field of generative models in computer vision, video stabilization still lacks a pure regressive deep-learning-based formulation. Deep video stabilization is generally formulated with the help of explicit motion…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Muhammad Kashif Ali , Sangjoon Yu , Tae Hyun Kim

This paper presents an approach to estimating the continuous 6-DoF pose of an object from a single RGB image. The approach combines semantic keypoints predicted by a convolutional network (convnet) with a deformable shape model. Unlike…

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

Recent work in unsupervised multi-object segmentation shows impressive results by predicting motion from a single image despite the inherent ambiguity in predicting motion without the next image. On the other hand, the set of possible…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Sadra Safadoust , Fatma Güney

The same type of objects in different images may vary in their shapes because of rigid and non-rigid shape deformations, occluding foreground as well as cluttered background. The problem concerned in this work is the shape extraction in…

计算机视觉与模式识别 · 计算机科学 2014-12-30 Junyan Wang , Kap-Luk Chan

We consider the problem of exact reconstruction of univariate functions with jump discontinuities at unknown positions from their moments. These functions are assumed to satisfy an a priori unknown linear homogeneous differential equation…

经典分析与常微分方程 · 数学 2009-09-18 Dmitry Batenkov

Estimating motion from images is a well-studied problem in computer vision and robotics. Previous work has developed techniques to estimate the motion of a moving camera in a largely static environment (e.g., visual odometry) and to segment…

机器人学 · 计算机科学 2019-03-01 Kevin M. Judd , Jonathan D. Gammell , Paul Newman

Uncertainty estimation is an important task for critical problems, such as robotics and autonomous driving, because it allows creating statistically better perception models and signaling the model's certainty in its predictions to the…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Illia Oleksiienko , Paraskevi Nousi , Nikolaos Passalis , Anastasios Tefas , Alexandros Iosifidis

Recently, Convolutional Neural Networks (CNNs) have been widely used to solve the illuminant estimation problem and have often led to state-of-the-art results. Standard approaches operate directly on the input image. In this paper, we argue…

图像与视频处理 · 电气工程与系统科学 2021-11-11 Firas Laakom , Jenni Raitoharju , Jarno Nikkanen , Alexandros Iosifidis , Moncef Gabbouj

We present a novel method for constructing Variational Autoencoder (VAE). Instead of using pixel-by-pixel loss, we enforce deep feature consistency between the input and the output of a VAE, which ensures the VAE's output to preserve the…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Xianxu Hou , Linlin Shen , Ke Sun , Guoping Qiu

Robotic systems often require precise scene analysis capabilities, especially in unstructured, cluttered situations, as occurring in human-made environments. While current deep-learning based methods yield good estimates of object poses,…

计算机视觉与模式识别 · 计算机科学 2019-10-09 Arul Selvam Periyasamy , Max Schwarz , Sven Behnke

Thin structures, such as wire-frame sculptures, fences, cables, power lines, and tree branches, are common in the real world. It is extremely challenging to acquire their 3D digital models using traditional image-based or depth-based…

图形学 · 计算机科学 2020-05-21 Peng Wang , Lingjie Liu , Nenglun Chen , Hung-Kuo Chu , Christian Theobalt , Wenping Wang

We introduce visual deprojection: the task of recovering an image or video that has been collapsed along a dimension. Projections arise in various contexts, such as long-exposure photography, where a dynamic scene is collapsed in time to…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Guha Balakrishnan , Adrian V. Dalca , Amy Zhao , John V. Guttag , Fredo Durand , William T. Freeman

In this paper we explore the potential of the double phase functional in an image processing context. To this end, we study minimizers of the double phase energy for functions with bounded variation and show that this energy can be obtained…

偏微分方程分析 · 数学 2021-05-27 Petteri Harjulehto , Peter Hästö

Image segmentation is the problem of partitioning an image into different subsets, where each subset may have a different characterization in terms of color, intensity, texture, and/or other features. Segmentation is a fundamental component…

计算机视觉与模式识别 · 计算机科学 2015-11-03 M. Abdelsamea

We deal with the problem of gradient estimation for stochastic differentiable relaxations of algorithms, operators, simulators, and other non-differentiable functions. Stochastic smoothing conventionally perturbs the input of a…

机器学习 · 计算机科学 2024-10-11 Felix Petersen , Christian Borgelt , Aashwin Mishra , Stefano Ermon

Recovering the turbulence-degraded point spread function from a single intensity image is important for a variety of imaging applications. Here, a deep learning model based on a convolutional neural network is applied to intensity images to…

图像与视频处理 · 电气工程与系统科学 2023-06-28 Abu Bucker Siddik , Steven Sandoval , David Voelz , Laura E Boucheron , Luis Varela

Motion blur can adversely affect a number of vision tasks, hence it is generally considered a nuisance. We instead treat motion blur as a useful signal that allows to compute the motion of objects from a single image. Drawing on the success…

计算机视觉与模式识别 · 计算机科学 2016-04-21 Jochen Gast , Anita Sellent , Stefan Roth
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