Results 41 to 50 of about 677,006 (283)

Rotation-Only Bundle Adjustment [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021
We propose a novel method for estimating the global rotations of the cameras independently of their positions and the scene structure. When two calibrated cameras observe five or more of the same points, their relative rotation can be recovered independently of the translation.
Seong Hun Lee, Javier Civera 0001
openaire   +2 more sources

Distributed Bundle Adjustment [PDF]

open access: yes2017 IEEE International Conference on Computer Vision Workshops (ICCVW), 2017
Most methods for Bundle Adjustment (BA) in computer vision are either centralized or operate incrementally. This leads to poor scaling and affects the quality of solution as the number of images grows in large scale structure from motion (SfM). Furthermore, they cannot be used in scenarios where image acquisition and processing must be distributed.
Karthikeyan Natesan Ramamurthy   +4 more
openaire   +2 more sources

JOINT BUNDLE ADJUSTMENT OF THERMAL INFRA-RED AND OPTICAL IMAGES BASED ON MULTIMODAL MATCHING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Despite the fact that Thermal Infrared (TIR) cameras have been in use for decades, processing of TIR images poses a variety of challenges when compared to optical images, which are captured in the visible part of the electromagnetic spectrum.
A. Sledz, C. Heipke
doaj   +1 more source

Multigrid for Bundle Adjustment

open access: yesCoRR, 2020
Bundle adjustment is an important global optimization step in many structure from motion pipelines. Performance is dependent on the speed of the linear solver used to compute steps towards the optimum. For large problems, the current state of the art scales superlinearly with the number of cameras in the problem.
Tristan Konolige, Jed Brown
openaire   +3 more sources

A Novel Bundle Adjustment Approach Based on Guess-Aided and Angle Quantization Multiobjective Particle Swarm Optimization (GAMOPSO) for 3D Reconstruction Applications

open access: yesIEEE Access, 2022
The 3D reconstruction process is very important in a variety of computer vision applications. Bundle adjustment has a significant impact on 3D reconstruction processes, namely in Simultaneously Localization and Mapping (SLAM) and Structure from Motion ...
Maher Alndiwee   +2 more
doaj   +1 more source

AN ITERATIVE APPROACH FOR SELF-CALIBRATING BUNDLE ADJUSTMENT [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Obtaining accurate image interior and exterior orientations is the key to improve 3D measurement accuracy besides reliable and accurate image matching. A majority of cameras used for those tasks are non-metric cameras.
J. L. Wang
doaj   +1 more source

Topographic Survey with Analytical Close Range Photogrammetry [PDF]

open access: yesEngineering and Technology Journal, 2016
Topographic survey uses to determine the relative locations of points (coordinates) on the earth's surface by measuring horizontal distances, differences in elevations and directions.
Abbas Zedan Khalaf, Sally Salwan
doaj   +1 more source

Bundle Adjustment Revisited

open access: yesCoRR, 2019
9 pages, 9 ...
Yu Chen, Yisong Chen, Guoping Wang
openaire   +2 more sources

DEVELOPMENT OF INTEGRATION AND ADJUSTMENT METHOD FOR SEQUENTIAL RANGE IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
With increasing widespread use of three-dimensional data, the demand for simplified data acquisition is also increasing. The range camera, which is a simplified sensor, can acquire a dense-range image in a single shot; however, its measuring coverage is ...
K. Nagara, T. Fuse
doaj   +1 more source

Toward an Automatic Calibration of Dual Fluoroscopy Imaging Systems [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
High-speed dual fluoroscopy (DF) imaging provides a novel, in-vivo solution to quantify the six-degree-of-freedom skeletal kinematics of humans and animals with sub-millimetre accuracy and high temporal resolution.
K. Al-Durgham   +4 more
doaj   +1 more source

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