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Camera calibration is integral to robotics and computer vision algorithms that seek to infer geometric properties of the scene from visual input streams. In practice, calibration is a laborious procedure requiring specialized data…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Jiading Fang , Igor Vasiljevic , Vitor Guizilini , Rares Ambrus , Greg Shakhnarovich , Adrien Gaidon , Matthew R. Walter

Acquiring accurate depth information of transparent objects using off-the-shelf RGB-D cameras is a well-known challenge in Computer Vision and Robotics. Depth estimation/completion methods are typically employed and trained on datasets with…

The self-supervised learning of depth and pose from monocular sequences provides an attractive solution by using the photometric consistency of nearby frames as it depends much less on the ground-truth data. In this paper, we address the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-20 Tianwei Shen , Lei Zhou , Zixin Luo , Yao Yao , Shiwei Li , Jiahui Zhang , Tian Fang , Long Quan

Neural Radiance Fields (NeRF) has demonstrated its superior capability to represent 3D geometry but require accurately precomputed camera poses during training. To mitigate this requirement, existing methods jointly optimize camera poses…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Hoang Chuong Nguyen , Wei Mao , Jose M. Alvarez , Miaomiao Liu

Accurate depth estimation remains an open problem for robotic manipulation; even state of the art techniques including structured light and LiDAR sensors fail on reflective or transparent surfaces. We address this problem by training a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-17 Ben Goodrich , Alex Kuefler , William D. Richards

Depth estimation is a challenging task of 3D reconstruction to enhance the accuracy sensing of environment awareness. This work brings a new solution with a set of improvements, which increase the quantitative and qualitative understanding…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Armin Masoumian , Hatem A. Rashwan , Saddam Abdulwahab , Julian Cristiano , Domenec Puig

A 360{\deg} perception of scene geometry is essential for automated driving, notably for parking and urban driving scenarios. Typically, it is achieved using surround-view fisheye cameras, focusing on the near-field area around the vehicle.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Varun Ravi Kumar , Marvin Klingner , Senthil Yogamani , Markus Bach , Stefan Milz , Tim Fingscheidt , Patrick Mäder

We present a novel neural surface reconstruction method, called NeuS, for reconstructing objects and scenes with high fidelity from 2D image inputs. Existing neural surface reconstruction approaches, such as DVR and IDR, require foreground…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Peng Wang , Lingjie Liu , Yuan Liu , Christian Theobalt , Taku Komura , Wenping Wang

UAVs have become an essential photogrammetric measurement as they are affordable, easily accessible and versatile. Aerial images captured from UAVs have applications in small and large scale texture mapping, 3D modelling, object detection…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Logambal Madhuanand , Francesco Nex , Michael Ying Yang

In this paper we propose USegScene, a framework for semantically guided unsupervised learning of depth, optical flow and ego-motion estimation for stereo camera images using convolutional neural networks. Our framework leverages semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Johan Vertens , Wolfram Burgard

Solving depth estimation with monocular cameras enables the possibility of widespread use of cameras as low-cost depth estimation sensors in applications such as autonomous driving and robotics. However, learning such a scalable depth…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Bin Cheng , Inderjot Singh Saggu , Raunak Shah , Gaurav Bansal , Dinesh Bharadia

The RGB-D camera maintains a limited range for working and is hard to accurately measure the depth information in a far distance. Besides, the RGB-D camera will easily be influenced by strong lighting and other external factors, which will…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Mingyang Geng , Suning Shang , Bo Ding , Huaimin Wang , Pengfei Zhang , Lei Zhang

In recent years, dynamic vision sensors (DVS), also known as event-based cameras or neuromorphic sensors, have seen increased use due to various advantages over conventional frame-based cameras. Using principles inspired by the retina, its…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Nicholas F. Y. Chen

Recently, self-supervised learning of depth and ego-motion from thermal images shows strong robustness and reliability under challenging scenarios. However, the inherent thermal image properties such as weak contrast, blurry edges, and…

Robotics · Computer Science 2022-06-16 Ukcheol Shin , Kyunghyun Lee , Byeong-Uk Lee , In So Kweon

Modern consumer cameras usually employ the rolling shutter (RS) mechanism, where images are captured by scanning scenes row-by-row, yielding RS distortions for dynamic scenes. To correct RS distortions, existing methods adopt a fully…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Wei Shang , Dongwei Ren , Chaoyu Feng , Xiaotao Wang , Lei Lei , Wangmeng Zuo

Deep approaches to predict monocular depth and ego-motion have grown in recent years due to their ability to produce dense depth from monocular images. The main idea behind them is to optimize the photometric consistency over image…

Robotics · Computer Science 2019-01-08 Vignesh Prasad , Dipanjan Das , Brojeshwar Bhowmick

Autonomous vehicles and robots need to operate over a wide variety of scenarios in order to complete tasks efficiently and safely. Multi-camera self-supervised monocular depth estimation from videos is a promising way to reason about the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Takayuki Kanai , Igor Vasiljevic , Vitor Guizilini , Adrien Gaidon , Rares Ambrus

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…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

As an agent moves through the world, the apparent motion of scene elements is (usually) inversely proportional to their depth. It is natural for a learning agent to associate image patterns with the magnitude of their displacement over…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Huaizu Jiang , Erik Learned-Miller , Gustav Larsson , Michael Maire , Greg Shakhnarovich

Learning to reconstruct depths in a single image by watching unlabeled videos via deep convolutional network (DCN) is attracting significant attention in recent years. In this paper, we introduce a surface normal representation for…

Computer Vision and Pattern Recognition · Computer Science 2017-11-13 Zhenheng Yang , Peng Wang , Wei Xu , Liang Zhao , Ramakant Nevatia