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Previous methods on estimating detailed human depth often require supervised training with `ground truth' depth data. This paper presents a self-supervised method that can be trained on YouTube videos without known depth, which makes…

计算机视觉与模式识别 · 计算机科学 2020-05-08 Feitong Tan , Hao Zhu , Zhaopeng Cui , Siyu Zhu , Marc Pollefeys , Ping Tan

Despite monocular 3D object detection having recently made a significant leap forward thanks to the use of pre-trained depth estimators for pseudo-LiDAR recovery, such two-stage methods typically suffer from overfitting and are incapable of…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Yongzhi Su , Yan Di , Fabian Manhardt , Guangyao Zhai , Jason Rambach , Benjamin Busam , Didier Stricker , Federico Tombari

We consider the problem of next frame prediction from video input. A recurrent convolutional neural network is trained to predict depth from monocular video input, which, along with the current video image and the camera trajectory, can…

机器学习 · 计算机科学 2017-06-14 Reza Mahjourian , Martin Wicke , Anelia Angelova

In autonomous driving, monocular sequences contain lots of information. Monocular depth estimation, camera ego-motion estimation and optical flow estimation in consecutive frames are high-profile concerns recently. By analyzing tasks above,…

计算机视觉与模式识别 · 计算机科学 2020-08-21 Guangming Wang , Chi Zhang , Hesheng Wang , Jingchuan Wang , Yong Wang , Xinlei Wang

Recovering structure and motion parameters given a image pair or a sequence of images is a well studied problem in computer vision. This is often achieved by employing Structure from Motion (SfM) or Simultaneous Localization and Mapping…

计算机视觉与模式识别 · 计算机科学 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

Current state-of-the-art solutions for motion capture from a single camera are optimization driven: they optimize the parameters of a 3D human model so that its re-projection matches measurements in the video (e.g. person segmentation,…

计算机视觉与模式识别 · 计算机科学 2017-12-06 Hsiao-Yu Fish Tung , Hsiao-Wei Tung , Ersin Yumer , Katerina Fragkiadaki

We study the problem of segmenting moving objects in unconstrained videos. Given a video, the task is to segment all the objects that exhibit independent motion in at least one frame. We formulate this as a learning problem and design our…

计算机视觉与模式识别 · 计算机科学 2017-12-05 Pavel Tokmakov , Cordelia Schmid , Karteek Alahari

A natural approach to generative modeling of videos is to represent them as a composition of moving objects. Recent works model a set of 2D sprites over a slowly-varying background, but without considering the underlying 3D scene that gives…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Paul Henderson , Christoph H. Lampert

Humans easily recognize object parts and their hierarchical structure by watching how they move; they can then predict how each part moves in the future. In this paper, we propose a novel formulation that simultaneously learns a…

计算机视觉与模式识别 · 计算机科学 2019-03-14 Zhenjia Xu , Zhijian Liu , Chen Sun , Kevin Murphy , William T. Freeman , Joshua B. Tenenbaum , Jiajun Wu

Video object segmentation, i.e., the separation of a target object from background in video, has made significant progress on real and challenging videos in recent years. To leverage this progress in 3D applications, this paper addresses…

计算机视觉与模式识别 · 计算机科学 2020-12-21 Brent A. Griffin , Jason J. Corso

In this study, we address the challenge of 3D scene structure recovery from monocular depth estimation. While traditional depth estimation methods leverage labeled datasets to directly predict absolute depth, recent advancements advocate…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Chi Zhang , Wei Yin , Gang Yu , Zhibin Wang , Tao Chen , Bin Fu , Joey Tianyi Zhou , Chunhua Shen

Single-view depth estimation (SVDE) plays a crucial role in scene understanding for AR applications, 3D modeling, and robotics, providing the geometry of a scene based on a single image. Recent works have shown that a successful solution…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Mikhail Romanov , Nikolay Patatkin , Anna Vorontsova , Sergey Nikolenko , Anton Konushin , Dmitry Senyushkin

Depth estimation from a single image represents a very exciting challenge in computer vision. While other image-based depth sensing techniques leverage on the geometry between different viewpoints (e.g., stereo or structure from motion),…

计算机视觉与模式识别 · 计算机科学 2018-10-29 Pierluigi Zama Ramirez , Matteo Poggi , Fabio Tosi , Stefano Mattoccia , Luigi Di Stefano

We present a novel algorithm for estimating the broad 3D geometric structure of outdoor video scenes. Leveraging spatio-temporal video segmentation, we decompose a dynamic scene captured by a video into geometric classes, based on…

计算机视觉与模式识别 · 计算机科学 2016-11-17 S. Hussain Raza , Matthias Grundmann , Irfan Essa

Existing deep learning-based approaches for monocular 3D object detection in autonomous driving often model the object as a rotated 3D cuboid while the object's geometric shape has been ignored. In this work, we propose an approach for…

计算机视觉与模式识别 · 计算机科学 2021-08-26 Zongdai Liu , Dingfu Zhou , Feixiang Lu , Jin Fang , Liangjun Zhang

Recovering the 3D structure of an object from a single image is a challenging task due to its ill-posed nature. One approach is to utilize the plentiful photos of the same object category to learn a strong 3D shape prior for the object.…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Long-Nhat Ho , Anh Tuan Tran , Quynh Phung , Minh Hoai

As a flexible passive 3D sensing means, unsupervised learning of depth from monocular videos is becoming an important research topic. It utilizes the photometric errors between the target view and the synthesized views from its adjacent…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Hualie Jiang , Laiyan Ding , Zhenglong Sun , Rui Huang

Multi-object tracking from RGB-D video sequences is a challenging problem due to the combination of changing viewpoints, motion, and occlusions over time. We observe that having the complete geometry of objects aids in their tracking, and…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Norman Müller , Yu-Shiang Wong , Niloy J. Mitra , Angela Dai , Matthias Nießner

Global visual localization estimates the absolute pose of a camera using a single image, in a previously mapped area. Obtaining the pose from a single image enables many robotics and augmented/virtual reality applications. Inspired by…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Mohammad Altillawi , Shile Li , Sai Manoj Prakhya , Ziyuan Liu , Joan Serrat

Scene flow represents the motion of points in the 3D space, which is the counterpart of the optical flow that represents the motion of pixels in the 2D image. However, it is difficult to obtain the ground truth of scene flow in the real…

计算机视觉与模式识别 · 计算机科学 2022-06-09 Guangming Wang , Xiaoyu Tian , Ruiqi Ding , Hesheng Wang