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Estimating the 3D shape of an object using a single image is a difficult problem. Modern approaches achieve good results for general objects, based on real photographs, but worse results on less expressive representations such as historic…

计算机视觉与模式识别 · 计算机科学 2024-02-14 Thomas Pöllabauer , Julius Kühn , Jiayi Li , Arjan Kuijper

While progress in 2D generative models of human appearance has been rapid, many applications require 3D avatars that can be animated and rendered. Unfortunately, most existing methods for learning generative models of 3D humans with diverse…

计算机视觉与模式识别 · 计算机科学 2023-05-04 Zijian Dong , Xu Chen , Jinlong Yang , Michael J. Black , Otmar Hilliges , Andreas Geiger

We present the first method to perform automatic 3D pose, shape and texture capture of animals from images acquired in-the-wild. In particular, we focus on the problem of capturing 3D information about Grevy's zebras from a collection of…

计算机视觉与模式识别 · 计算机科学 2019-09-18 Silvia Zuffi , Angjoo Kanazawa , Tanya Berger-Wolf , Michael J. Black

In order for robots to operate effectively in homes and workplaces, they must be able to manipulate the articulated objects common within environments built for and by humans. Previous work learns kinematic models that prescribe this…

机器人学 · 计算机科学 2016-07-04 Zhengyang Wu , Mohit Bansal , Matthew R. Walter

This paper presents an algorithm to reconstruct temporally consistent 3D meshes of deformable object instances from videos in the wild. Without requiring annotations of 3D mesh, 2D keypoints, or camera pose for each video frame, we pose…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Xueting Li , Sifei Liu , Shalini De Mello , Kihwan Kim , Xiaolong Wang , Ming-Hsuan Yang , Jan Kautz

Human pose estimation from single images is a challenging problem in computer vision that requires large amounts of labeled training data to be solved accurately. Unfortunately, for many human activities (\eg outdoor sports) such training…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Bastian Wandt , Marco Rudolph , Petrissa Zell , Helge Rhodin , Bodo Rosenhahn

Articulated objects exist widely in the real world. However, previous 3D generative methods for unsupervised part decomposition are unsuitable for such objects, because they assume a spatially fixed part location, resulting in inconsistent…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Yuki Kawana , Yusuke Mukuta , Tatsuya Harada

Monocular imaging of animals inherently reduces 3D structures to 2D projections. Detection algorithms lead to 2D bounding boxes that lack information about animal's orientation relative to the camera. To build 3D detection methods for RGB…

计算机视觉与模式识别 · 计算机科学 2026-04-13 Vandita Shukla , Fabio Remondino , Benjamin Risse

We propose an unsupervised method for 3D geometry-aware representation learning of articulated objects, in which no image-pose pairs or foreground masks are used for training. Though photorealistic images of articulated objects can be…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Atsuhiro Noguchi , Xiao Sun , Stephen Lin , Tatsuya Harada

We present a method to learn the 3D surface of objects directly from a collection of images. Previous work achieved this capability by exploiting additional manual annotation, such as object pose, 3D surface templates, temporal continuity…

计算机视觉与模式识别 · 计算机科学 2018-11-28 Attila Szabó , Paolo Favaro

Neuroscientists postulate 3D representations in the brain in a variety of different coordinate frames (e.g. 'head-centred', 'hand-centred' and 'world-based'). Recent advances in reinforcement learning demonstrate a quite different approach…

神经元与认知 · 定量生物学 2020-07-10 Alex Muryy , N. Siddharth , Nantas Nardelli , Philip H. S. Torr , Andrew Glennerster

Rendering articulated objects while controlling their poses is critical to applications such as virtual reality or animation for movies. Manipulating the pose of an object, however, requires the understanding of its underlying structure,…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Atsuhiro Noguchi , Umar Iqbal , Jonathan Tremblay , Tatsuya Harada , Orazio Gallo

We propose a technique for learning single-view 3D object pose estimation models by utilizing a new source of data -- in-the-wild videos where objects turn. Such videos are prevalent in practice (e.g., cars in roundabouts, airplanes near…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Zezhou Cheng , Matheus Gadelha , Subhransu Maji

In this work, we focus on the task of learning and representing dense correspondences in deformable object categories. While this problem has been considered before, solutions so far have been rather ad-hoc for specific object types (i.e.,…

计算机视觉与模式识别 · 计算机科学 2020-11-26 Natalia Neverova , David Novotny , Vasil Khalidov , Marc Szafraniec , Patrick Labatut , Andrea Vedaldi

One major challenge for monocular 3D human pose estimation in-the-wild is the acquisition of training data that contains unconstrained images annotated with accurate 3D poses. In this paper, we address this challenge by proposing a…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Umar Iqbal , Pavlo Molchanov , Jan Kautz

We present an approach to infer the 3D shape, texture, and camera pose for an object from a single RGB image, using only category-level image collections with foreground masks as supervision. We represent the shape as an image-conditioned…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Shubham Tulsiani , Nilesh Kulkarni , Abhinav Gupta

We present a novel 3D shape reconstruction method which learns to predict an implicit 3D shape representation from a single RGB image. Our approach uses a set of single-view images of multiple object categories without viewpoint annotation,…

计算机视觉与模式识别 · 计算机科学 2022-04-22 Zixuan Huang , Stefan Stojanov , Anh Thai , Varun Jampani , James M. Rehg

Animating an object in 3D often requires an articulated structure, e.g. a kinematic chain or skeleton of the manipulated object with proper skinning weights, to obtain smooth movements and surface deformations. However, existing models that…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Tianshu Kuai , Akash Karthikeyan , Yash Kant , Ashkan Mirzaei , Igor Gilitschenski

Animals move in three dimensions (3D). Thus, 3D measurement is necessary to report the true kinematics of animal movement. Existing 3D measurement techniques draw on specialized hardware, such as motion capture or depth cameras, as well as…

神经元与认知 · 定量生物学 2021-12-06 Jesse D. Marshall , Tianqing Li , Joshua H. Wu , Timothy W. Dunn

Holistic 3D human-scene reconstruction is a crucial and emerging research area in robot perception. A key challenge in holistic 3D human-scene reconstruction is to generate a physically plausible 3D scene from a single monocular RGB image.…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Sandika Biswas , Kejie Li , Biplab Banerjee , Subhasis Chaudhuri , Hamid Rezatofighi