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We present a method to improve the visual realism of low-quality, synthetic images, e.g. OpenGL renderings. Training an unpaired synthetic-to-real translation network in image space is severely under-constrained and produces visible…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Sai Bi , Kalyan Sunkavalli , Federico Perazzi , Eli Shechtman , Vladimir Kim , Ravi Ramamoorthi

We tackle the problem of unsupervised synthetic-to-real domain adaptation for single image depth estimation. An essential building block of single image depth estimation is an encoder-decoder task network that takes RGB images as input and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Hiroyasu Akada , Shariq Farooq Bhat , Ibraheem Alhashim , Peter Wonka

Simulators can efficiently generate large amounts of labeled synthetic data with perfect supervision for hard-to-label tasks like semantic segmentation. However, they introduce a domain gap that severely hurts real-world performance. We…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Vitor Guizilini , Jie Li , Rares Ambrus , Adrien Gaidon

Multiwavelength photoacoustic images encode information about a tissue's optical absorption distribution. This can be used to estimate its blood oxygen saturation distribution (sO2), an important physiological indicator of tissue health and…

Medical Physics · Physics 2023-05-09 Ciaran Bench , Ben T. Cox

Autonomous navigation in congested maritime environments is a critical capability for a wide range of real-world applications. However, it remains an unresolved challenge due to complex vessel interactions and significant environmental…

Robotics · Computer Science 2026-03-05 Xinyu Cui , Xuanfa Jin , Xue Yan , Yongcheng Zeng , Luoyang Sun , Siying Wei , Ruizhi Zhang , Jian Zhao , Haifeng Zhang , Jun Wang

Estimating the distance to objects is crucial for autonomous vehicles when using depth sensors is not possible. In this case, the distance has to be estimated from on-board mounted RGB cameras, which is a complex task especially in…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Michaël Fonder , Damien Ernst , Marc Van Droogenbroeck

Single-view depth estimation suffers from the problem that a network trained on images from one camera does not generalize to images taken with a different camera model. Thus, changing the camera model requires collecting an entirely new…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Jose M. Facil , Benjamin Ummenhofer , Huizhong Zhou , Luis Montesano , Thomas Brox , Javier Civera

Synthetic data is being used lately for training deep neural networks in computer vision applications such as object detection, object segmentation and 6D object pose estimation. Domain randomization hereby plays an important role in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Parth Rawal , Mrunal Sompura , Wolfgang Hintze

Autonomous vehicles rely heavily on sensors such as camera and LiDAR, which provide real-time information about their surroundings for the tasks of perception, planning and control. Typically a LiDAR can only provide sparse point cloud…

Image and Video Processing · Electrical Eng. & Systems 2020-07-07 Lin Bai , Yiming Zhao , Mahdi Elhousni , Xinming Huang

Monocular depth estimation is one of the fundamental tasks in environmental perception and has achieved tremendous progress in virtue of deep learning. However, the performance of trained models tends to degrade or deteriorate when employed…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Qiyu Sun , Gary G. Yen , Yang Tang , Chaoqiang Zhao

The low-level details and high-level semantics are both essential to the semantic segmentation task. However, to speed up the model inference, current approaches almost always sacrifice the low-level details, which leads to a considerable…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Changqian Yu , Changxin Gao , Jingbo Wang , Gang Yu , Chunhua Shen , Nong Sang

Deploying reinforcement learning policies trained in simulation to real autonomous vehicles remains a fundamental challenge, particularly for VLM-guided RL frameworks whose policies are typically learned with simulator-native observations…

Robotics · Computer Science 2026-04-07 Zilin Huang , Zhengyang Wan , Zihao Sheng , Boyue Wang , Junwei You , Yue Leng , Sikai Chen

We present Sym2Real, a fully data-driven framework that provides a principled way to train low-level adaptive controllers in a highly data-efficient manner. Using only about 10 trajectories, we achieve robust control of both a quadrotor and…

Robotics · Computer Science 2025-09-22 Easop Lee , Samuel A. Moore , Boyuan Chen

The injection of syntactic information in Variational AutoEncoders (VAEs) has been shown to result in an overall improvement of performances and generalisation. An effective strategy to achieve such a goal is to separate the encoding of…

Computation and Language · Computer Science 2023-11-16 Yingji Zhang , Marco Valentino , Danilo S. Carvalho , Ian Pratt-Hartmann , André Freitas

The engineering community currently encounters significant challenges in the development of intelligent transportation algorithms that can be transferred from simulation to reality with minimal effort. This can be achieved by robustifying…

Robotics · Computer Science 2024-09-11 Chinmay Vilas Samak , Tanmay Vilas Samak , Venkat Krovi

Semantic segmentation models only perform well on the domain they are trained on and datasets for training are scarce and often have a small label-spaces, because the pixel level annotations required are expensive to make. Thus training…

Computer Vision and Pattern Recognition · Computer Science 2021-07-12 Floris Naber

We present a system for training deep neural networks for object detection using synthetic images. To handle the variability in real-world data, the system relies upon the technique of domain randomization, in which the parameters of the…

Computer Vision and Pattern Recognition · Computer Science 2018-04-25 Jonathan Tremblay , Aayush Prakash , David Acuna , Mark Brophy , Varun Jampani , Cem Anil , Thang To , Eric Cameracci , Shaad Boochoon , Stan Birchfield

LiDAR is crucial for robust 3D scene perception in autonomous driving. LiDAR perception has the largest body of literature after camera perception. However, multi-task learning across tasks like detection, segmentation, and motion…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Sambit Mohapatra , Senthil Yogamani , Varun Ravi Kumar , Stefan Milz , Heinrich Gotzig , Patrick Mäder

Traditional supervised medical image segmentation models require large amounts of labeled data for training; however, obtaining such large-scale labeled datasets in the real world is extremely challenging. Recent semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Yunyao Lu , Yihang Wu , Reem Kateb , Ahmad Chaddad

Near field depth estimation around a self driving car is an important function that can be achieved by four wide angle fisheye cameras having a field of view of over 180. Depth estimation based on convolutional neural networks (CNNs)…

Computer Vision and Pattern Recognition · Computer Science 2018-09-25 Varun Ravi Kumar , Stefan Milz , Martin Simon , Christian Witt , Karl Amende , Johannes Petzold , Senthil Yogamani , Timo Pech