Results 21 to 30 of about 12,972 (261)

EXPERIMENT ON PRODUCING DISPARITY MAPS FROM AERIAL STEREO IMAGES USING UNSUPERVISED AND SUPERVISED METHODS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Recent advancement in hardware and software provides the possibility of realizing full automation in stereo-image tasks. This paper investigated disparity map generation from aerial images with different methods: unsupervised method and supervised ...
L. Zhu   +3 more
doaj   +1 more source

Stereo Matching with Nonlinear Diffusion [PDF]

open access: yesInternational Journal of Computer Vision, 1996
One of the central problems in stereo matching (and other image registration tasks) is the selection of optimal window sizes for comparing image regions. This paper addresses this problem with some novel algorithms based on iteratively diffusing support at different disparity hypotheses, and locally controlling the amount of diffusion based on the ...
Scharstein, Daniel, Szeliski, Richard
openaire   +1 more source

Stereo sensitivity depends on stereo matching

open access: yesJournal of Vision, 2005
Stereoacuity thresholds, measured with bar targets, rise as the absolute disparity of the bars is increased. One explanation for this rise is that, as the bars are moved away from the fixation plane, the stereo system uses coarser mechanisms to encode the bars' disparity; coarse mechanisms are insensitive to small changes in target disparity, resulting
Suzanne P, McKee   +2 more
openaire   +2 more sources

HIGH-PRECISION DEM PRODUCTION FOR SPACEBORNE STEREO SAR IMAGES BASED ON SIFT MATCHING AND REGION-BASED LEAST SQUARES MATCHING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Generally, there are two ways to generate Digital Elevation Model (DEM) using synthetic aperture radar (SAR) data, which are Interferometer Synthetic Aperture Radar(InSAR) and radargrammetry. Considering the disadvantages of InSAR data, such as the limit
S. Xiaotian, Z. Guo, Z. Guo, W. Xia
doaj   +1 more source

Pyramid Stereo Matching Network [PDF]

open access: yes2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2018
Recent work has shown that depth estimation from a stereo pair of images can be formulated as a supervised learning task to be resolved with convolutional neural networks (CNNs). However, current architectures rely on patch-based Siamese networks, lacking the means to exploit context information for finding correspondence in illposed regions. To tackle
Jia-Ren Chang, Yong-Sheng Chen
openaire   +4 more sources

A Low-Complexity End-to-End Stereo Matching Pipeline From Raw Bayer Pattern Images to Disparity Maps

open access: yesIEEE Access, 2021
Conventional computer vision algorithms, including stereo matching algorithms, take finely rendered color images as input. However, existing image signal processing (ISP) pipelines for color image generation are designed for photography with a goal of ...
Shengyu Gao, Hongyu Wang, Xin Lou
doaj   +1 more source

Single View Stereo Matching [PDF]

open access: yes2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2018
Previous monocular depth estimation methods take a single view and directly regress the expected results. Though recent advances are made by applying geometrically inspired loss functions during training, the inference procedure does not explicitly impose any geometrical constraint.
Yue Luo   +6 more
openaire   +3 more sources

Segment-based adaptive window and multi-feature fusion for stereo matching

open access: yesJournal of Algorithms & Computational Technology, 2016
As to the problems of local stereo matching methods, such as matching window selection difficulty, fuzzy disparity edges and low accuracy in weak texture regions, this paper proposes an efficient stereo matching algorithm to improve the stereo matching ...
Hua Shi   +4 more
doaj   +1 more source

Coarse-to-Fine Stereo Matching Network Based on Multi-Scale Structural Information Filtrating

open access: yesIEEE Access, 2023
Stereo vision measurement is widely applied in tasks such as autonomous driving and 3D scene reconstruction. Accurately obtaining the disparity of stereo images relies on effective stereo matching algorithms.
Yuanwei Bi   +5 more
doaj   +1 more source

Estimation of disparity map of stereo image pairs using spatial domain local Gabor wavelet

open access: yesIET Computer Vision, 2015
The stereo matching problem takes two images captured by nearby cameras and attempts to recover quantitative disparity information. Most of the existing stereo matching algorithms find it difficult to estimate disparity in the occlusion, discontinuities ...
T. Malathi, M.K. Bhuyan
doaj   +1 more source

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