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Depth estimation is a cornerstone of a vast number of applications requiring 3D assessment of the environment, such as robotics, augmented reality, and autonomous driving to name a few. One prominent technique for depth estimation is stereo…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Amit Bracha , Noam Rotstein , David Bensaïd , Ron Slossberg , Ron Kimmel

Estimating depth from RGB images is a long-standing ill-posed problem, which has been explored for decades by the computer vision, graphics, and machine learning communities. Among the existing techniques, stereo matching remains one of the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Hamid Laga , Laurent Valentin Jospin , Farid Boussaid , Mohammed Bennamoun

Recent works on implicit neural representations have shown promising results for multi-view surface reconstruction. However, most approaches are limited to relatively simple geometries and usually require clean object masks for…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jingyang Zhang , Yao Yao , Long Quan

Mask-based lensless cameras offer a novel design for imaging systems by replacing the lens in a conventional camera with a layer of coded mask. Each pixel of the lensless camera encodes the information of the entire 3D scene. Existing…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Yucheng Zheng , M. Salman Asif

With the advent of convolutional neural networks, stereo matching algorithms have recently gained tremendous progress. However, it remains a great challenge to accurately extract disparities from real-world image pairs taken by…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Jiankun Li , Peisen Wang , Pengfei Xiong , Tao Cai , Ziwei Yan , Lei Yang , Jiangyu Liu , Haoqiang Fan , Shuaicheng Liu

Recently, phase processing is attracting increasinginterest in speech enhancement community. Some researchersintegrate phase estimations module into speech enhancementmodels by using complex-valued short-time Fourier transform(STFT)…

Sound · Computer Science 2019-01-03 Xingjian Du , Mengyao Zhu , Xuan Shi , Xinpeng Zhang , Wen Zhang , Jingdong Chen

Multiview stereo aims to reconstruct scene depth from images acquired by a camera under arbitrary motion. Recent methods address this problem through deep learning, which can utilize semantic cues to deal with challenges such as textureless…

Computer Vision and Pattern Recognition · Computer Science 2019-05-03 Sunghoon Im , Hae-Gon Jeon , Stephen Lin , In So Kweon

The objective of deep learning methods based on encoder-decoder architectures for music source separation is to approximate either ideal time-frequency masks or spectral representations of the target music source(s). The spectral…

In this paper, we propose a novel end-to-end deep neural network model for omnidirectional depth estimation from a wide-baseline multi-view stereo setup. The images captured with ultra wide field-of-view (FOV) cameras on an omnidirectional…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Changhee Won , Jongbin Ryu , Jongwoo Lim

Photometric stereo recovers the surface normals of an object from multiple images with varying shading cues, i.e., modeling the relationship between surface orientation and intensity at each pixel. Photometric stereo prevails in superior…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Yakun Ju , Kin-Man Lam , Wuyuan Xie , Huiyu Zhou , Junyu Dong , Boxin Shi

Stereo matching is one of the longest-standing problems in computer vision with close to 40 years of studies and research. Throughout the years the paradigm has shifted from local, pixel-level decision to various forms of discrete and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Matteo Poggi , Fabio Tosi , Konstantinos Batsos , Philippos Mordohai , Stefano Mattoccia

End-to-end deep-learning networks recently demonstrated extremely good perfor- mance for stereo matching. However, existing networks are difficult to use for practical applications since (1) they are memory-hungry and unable to process even…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Stepan Tulyakov , Anton Ivanov , Francois Fleuret

Active stereo cameras that recover depth from structured light captures have become a cornerstone sensor modality for 3D scene reconstruction and understanding tasks across application domains. Existing active stereo cameras project a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-27 Seung-Hwan Baek , Felix Heide

The complementary characteristics of active and passive depth sensing techniques motivate the fusion of the Li-DAR sensor and stereo camera for improved depth perception. Instead of directly fusing estimated depths across LiDAR and stereo…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Tsun-Hsuan Wang , Hou-Ning Hu , Chieh Hubert Lin , Yi-Hsuan Tsai , Wei-Chen Chiu , Min Sun

To reconstruct a 3D scene from a set of calibrated views, traditional multi-view stereo techniques rely on two distinct stages: local depth maps computation and global depth maps fusion. Recent studies concentrate on deep neural…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Jaesung Choe , Sunghoon Im , Francois Rameau , Minjun Kang , In So Kweon

We propose Gated Stereo, a high-resolution and long-range depth estimation technique that operates on active gated stereo images. Using active and high dynamic range passive captures, Gated Stereo exploits multi-view cues alongside…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Stefanie Walz , Mario Bijelic , Andrea Ramazzina , Amanpreet Walia , Fahim Mannan , Felix Heide

Depth from defocus (DfD) and stereo matching are two most studied passive depth sensing schemes. The techniques are essentially complementary: DfD can robustly handle repetitive textures that are problematic for stereo matching whereas…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Zhang Chen , Xinqing Guo , Siyuan Li , Xuan Cao , Jingyi Yu

Uncalibrated photometric stereo is proposed to estimate the detailed surface normal from images under varying and unknown lightings. Recently, deep learning brings powerful data priors to this underdetermined problem. This paper presents a…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Fangzhou Gao , Meng Wang , Lianghao Zhang , Li Wang , Jiawan Zhang

3D scene reconstruction from 2D images has been a long-standing task. Instead of estimating per-frame depth maps and fusing them in 3D, recent research leverages the neural implicit surface as a unified representation for 3D reconstruction.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xinyi Yu , Liqin Lu , Jintao Rong , Guangkai Xu , Linlin Ou

Inpainting arbitrary missing regions is challenging because learning valid features for various masked regions is nontrivial. Though U-shaped encoder-decoder frameworks have been witnessed to be successful, most of them share a common…

Computer Vision and Pattern Recognition · Computer Science 2021-05-19 Manyu Zhu , Dongliang He , Xin Li , Chao Li , Fu Li , Xiao Liu , Errui Ding , Zhaoxiang Zhang