Results 21 to 30 of about 217,760 (286)

Stereo Model Selection and Point Cloud Filtering using an Out-of-Core Octree [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Dense image matching methods enable the retrieval of dense surface information using any kind of imagery. The best quality can be achieved for highly overlapping datasets, which avoids occlusions and provides highly redundant observations.
K. Wenzel, N. Haala, D. Fritsch
doaj   +1 more source

HIERARCHICAL APPROACH FOR DETECTING CHANGES WITH THE USE OF DIFFERENT PYRAMID LEVELS IN DENSE IMAGE MATCHING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Many cities order spatial data systematically, in particular aerial nadir images and orthophotomaps. However, only the orthoimages and orthophotomaps are usually used by the city administration, particularly in spatial planning. Some of the users are not
M. Pilarska
doaj   +1 more source

Influence of Block Geometry Configuration on Multi-Image Dense Matching

open access: yesRemote Sensing, 2022
Digital photogrammetry is a widespread surveying technique in different fields of application due to its flexibility, versatility and cost-effectiveness.
Nazarena Bruno   +4 more
doaj   +1 more source

Dense Image-Matching via Optical Flow Field Estimation and Fast-Guided Filter Refinement

open access: yesRemote Sensing, 2019
The development of an efficient and robust method for dense image-matching has been a technical challenge due to high variations in illumination and ground features of aerial images of large areas.
Wei Yuan   +4 more
doaj   +1 more source

Reliable fusion of ToF and stereo depth driven by confidence measures [PDF]

open access: yes, 2016
In this paper we propose a framework for the fusion of depth data produced by a Time-of-Flight (ToF) camera and stereo vision system. Initially, depth data acquired by the ToF camera are upsampled by an ad-hoc algorithm based on image segmentation and ...
Marin, Giulio   +2 more
core   +1 more source

UNSUPERVISED MULTI-CONSTRAINT DEEP NEURAL NETWORK FOR DENSE IMAGE MATCHING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Dense image matching is essential to photogrammetry applications, including Digital Surface Model (DSM) generation, three dimensional (3D) reconstruction, and object detection and recognition.
W. Yuan   +5 more
doaj   +1 more source

Social Scene Understanding: End-to-End Multi-Person Action Localization and Collective Activity Recognition [PDF]

open access: yes, 2016
We present a unified framework for understanding human social behaviors in raw image sequences. Our model jointly detects multiple individuals, infers their social actions, and estimates the collective actions with a single feed-forward pass through a ...
Alahi, Alexandre   +4 more
core   +2 more sources

CNN-Based Dense Image Matching for Aerial Remote Sensing Images

open access: yesPhotogrammetric Engineering & Remote Sensing, 2019
Dense stereo matching plays a key role in 3D reconstruction. The capability of using deep learning in the stereo matching of remote sensing data is currently uncertain. This article investigated the application of deep learning–based stereo methods in aerial image series and proposed a deep learning–based multi-view dense matching framework. First, we
Ji, Shunping, Liu, Jin, Lu, Meng
openaire   +2 more sources

A Novel Multi-Sensor Image Matching Algorithm Based on Adaptive Multiscale Structure Orientation

open access: yesIEEE Access, 2019
Automatic and reliable multi-sensor image matching is a very challenging task due to the significant nonlinear radiometric differences between multi-sensor images. In this paper, a novel dense descriptor based on adaptive multiscale structure orientation
Jiazhen Lu, Fangde Sun, Jing Dong
doaj   +1 more source

Benchmarking High Density Image Matching for Oblique Airborne Imagery [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Both, improvements in camera technology and new pixel-wise matching approaches triggered the further development of software tools for image based 3D reconstruction. Meanwhile research groups as well as commercial vendors provide photogrammetric software
S. Cavegn   +4 more
doaj   +1 more source

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