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Deep convolutional neural networks trained end-to-end are the state-of-the-art methods to regress dense disparity maps from stereo pairs. These models, however, suffer from a notable decrease in accuracy when exposed to scenarios…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Alessio Tonioni , Fabio Tosi , Matteo Poggi , Stefano Mattoccia , Luigi Di Stefano

Recent learning-based multi-view stereo (MVS) methods show excellent performance with dense cameras and small depth ranges. However, non-learning based approaches still outperform for scenes with large depth ranges and sparser wide-baseline…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Jae Yong Lee , Joseph DeGol , Chuhang Zou , Derek Hoiem

Depth estimation based on stereo matching is a classic but popular computer vision problem, which has a wide range of real-world applications. Current stereo matching methods generally adopt the deep Siamese neural network architecture, and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Xingguang Jiang , Xiaofeng Bian , Chenggang Guo

Most of stereo vision works are focusing on computing the dense pixel disparity of a given pair of left and right images. A camera pair usually required lens undistortion and stereo calibration to provide an undistorted epipolar line…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Ynjiun Paul Wang

Stereo matching is vital in 3D computer vision, with most algorithms assuming symmetric visual properties between binocular visions. However, the rise of asymmetric multi-camera systems (e.g., tele-wide cameras) challenges this assumption…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Yuanting Gao , Linghao Shen

We present an approach to depth estimation that fuses information from a stereo pair with sparse range measurements derived from a LIDAR sensor or a range camera. The goal of this work is to exploit the complementary strengths of the two…

Computer Vision and Pattern Recognition · Computer Science 2018-09-21 Shreyas S. Shivakumar , Kartik Mohta , Bernd Pfrommer , Vijay Kumar , Camillo J. Taylor

We use convolutional neural networks to recover images optically down-sampled by $6.7\times$ using coherent aperture synthesis over a 16 camera array. Where conventional ptychography relies on scanning and oversampling, here we apply…

Image and Video Processing · Electrical Eng. & Systems 2022-02-09 Chengyu Wang , Minghao Hu , Yuzuru Takashima , Timothy J. Schulz , David J. Brady

Recently, end-to-end deep networks based stereo matching methods, mainly because of their performance, have gained popularity. However, this improvement in performance comes at the cost of increased computational and memory bandwidth…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Rafia Rahim , Samuel Woerz , Andreas Zell

State-of-the-art stereo matching methods typically use costly 3D convolutions to aggregate a full cost volume, but their computational demands make mobile deployment challenging. Directly applying 2D convolutions for cost aggregation often…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Gangwei Xu , Jiaxin Liu , Xianqi Wang , Junda Cheng , Yong Deng , Jinliang Zang , Yurui Chen , Xin Yang

In SAR domain many application like classification, detection and segmentation are impaired by speckle. Hence, despeckling of SAR images is the key for scene understanding. Usually despeckling filters face the trade-off of speckle…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Sergio Vitale , Giampaolo Ferraioli , Vito Pascazio

Image augmentation is a widely used technique to improve the performance of convolutional neural networks (CNNs). In common image shifting, cropping, flipping, shearing and rotating are used for augmentation. But there are more advanced…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Philip May

In many applications of deep learning, particularly those in image restoration, it is either very difficult, prohibitively expensive, or outright impossible to obtain paired training data precisely as in the real world. In such cases, one…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Bolin Liu , Xiao Shu , Xiaolin Wu

We introduce the first end-to-end learning-based solution to near-field Photometric Stereo (PS), where the light sources are close to the object of interest. This setup is especially useful for reconstructing large immobile objects. Our…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Daniel Lichy , Soumyadip Sengupta , David W. Jacobs

We propose the first general framework to automatically correct different types of geometric distortion in a single input image. Our proposed method employs convolutional neural networks (CNNs) trained by using a large synthetic distortion…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Xiaoyu Li , Bo Zhang , Pedro V. Sander , Jing Liao

The self-attention mechanism, successfully employed with the transformer structure is shown promise in many computer vision tasks including image recognition, and object detection. Despite the surge, the use of the transformer for the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Xuelian Cheng , Yiran Zhong , Mehrtash Harandi , Tom Drummond , Zhiyong Wang , Zongyuan Ge

We propose a method for estimating disparity confidence intervals in stereo matching problems. Confidence intervals provide complementary information to usual confidence measures. To the best of our knowledge, this is the first method…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Roman Malinowski , Emmanuelle Sarrazin , Loïc Dumas , Emmanuel Dubois , Sébastien Destercke

Stereo matching of high-resolution satellite images (HRSI) is still a fundamental but challenging task in the field of photogrammetry and remote sensing. Recently, deep learning (DL) methods, especially convolutional neural networks (CNNs),…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Shenhong Li , Sheng He , San Jiang , Wanshou Jiang , Lin Zhang

In this work, we propose an efficient algorithm for the calculation of the Betti matching, which can be used as a loss function to train topology aware segmentation networks. Betti matching loss builds on techniques from topological data…

Algebraic Topology · Mathematics 2024-07-08 Nico Stucki , Vincent Bürgin , Johannes C. Paetzold , Ulrich Bauer

Efficient real-time disparity estimation is critical for the application of stereo vision systems in various areas. Recently, stereo network based on coarse-to-fine method has largely relieved the memory constraints and speed limitations of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 He Dai , Xuchong Zhang , Yongli Zhao , Hongbin Sun

Recently, leveraging on the development of end-to-end convolutional neural networks (CNNs), deep stereo matching networks have achieved remarkable performance far exceeding traditional approaches. However, state-of-the-art stereo frameworks…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Xiao Song , Xu Zhao , Liangji Fang , Hanwen Hu