An improved bundle adjustment model and algorithm with novel block matrix partition method

2014 ◽  
Author(s):  
Zemin Xia ◽  
Zhongwei Li ◽  
Kai Zhong
Keyword(s):  
Bundle Adjustment ◽  
Block Matrix ◽  
Matrix Partition ◽  
Adjustment Model ◽  
Partition Method

scholarly journals An In-Orbit Stereo Navigation Camera Self-Calibration Method for Planetary Rovers with Multiple Constraints

2022 ◽  
Vol 14 (2) ◽  
pp. 402
Author(s):  
Xinchao Xu ◽  
Mingyue Liu ◽  
Song Peng ◽  
Youqing Ma ◽  
Hongxi Zhao ◽  
...  
Keyword(s):  
Field Experiments ◽  
Nonlinear Least Squares ◽  
Bundle Adjustment ◽  
Average Error ◽  
Multiple Constraints ◽  
Camera Model ◽  
Line Extraction ◽  
Self Calibration ◽  
Adjustment Model ◽  
Marquardt Algorithm

In order to complete the high-precision calibration of the planetary rover navigation camera using limited initial data in-orbit, we proposed a joint adjustment model with additional multiple constraints. Specifically, a base model was first established based on the bundle adjustment model, second-order radial and tangential distortion parameters. Then, combining the constraints of collinearity, coplanarity, known distance and relative pose invariance, a joint adjustment model was constructed to realize the in orbit self-calibration of the navigation camera. Given the problem of directionality in line extraction of the solar panel due to large differences in the gradient amplitude, an adaptive brightness-weighted line extraction method was proposed. Lastly, the Levenberg-Marquardt algorithm for nonlinear least squares was used to obtain the optimal results. To verify the proposed method, field experiments and in-orbit experiments were carried out. The results suggested that the proposed method was more accurate than the self-calibration bundle adjustment method, CAHVOR method (a camera model used in machine vision for three-dimensional measurements), and vanishing points method. The average error for the flag of China and the optical solar reflector was only 1 mm and 0.7 mm, respectively. In addition, the proposed method has been implemented in China’s deep space exploration missions.

scholarly journals REFINED SATELLITE IMAGE ORIENTATION IN THE FREE OPEN-SOURCE PHOTOGRAMMETRIC TOOLS APERO/MICMAC

2016 ◽  
Vol III-1 ◽  
pp. 83-90 ◽  
Author(s):  
E. Rupnik ◽  
M. Pierrot Deseilligny ◽  
A. Delorme ◽  
Y. Klinger
Keyword(s):  
Open Source ◽  
Satellite Image ◽  
Bundle Adjustment ◽  
Physical Constraint ◽  
Adjustment Model ◽  
Triplet Pair ◽  
Image Orientation ◽  
Free Open Source

This publication presents the RPC-based bundle adjustment implemented in the freeware open-source photogrammetric tool Apero/MicMac. The bundle adjustment model is based on some polynomial correction functions, enriched with a physical constraint that introduces the notion of a global sensor rotation into the model. The devised algorithms are evaluated against two datasets consisting of two stereo and a triplet pair of the Pleiades images. Two sets of correction functions and a number of GCPs configurations are examined. The obtained geo-referencing accuracy falls below the size of 1GSD.

scholarly journals REFINED SATELLITE IMAGE ORIENTATION IN THE FREE OPEN-SOURCE PHOTOGRAMMETRIC TOOLS APERO/MICMAC

2016 ◽  
Vol III-1 ◽  
pp. 83-90 ◽  
Author(s):  
E. Rupnik ◽  
M. Pierrot Deseilligny ◽  
A. Delorme ◽  
Y. Klinger
Keyword(s):  
Open Source ◽  
Satellite Image ◽  
Bundle Adjustment ◽  
Physical Constraint ◽  
Adjustment Model ◽  
Triplet Pair ◽  
Image Orientation ◽  
Free Open Source

This publication presents the RPC-based bundle adjustment implemented in the freeware open-source photogrammetric tool Apero/MicMac. The bundle adjustment model is based on some polynomial correction functions, enriched with a physical constraint that introduces the notion of a global sensor rotation into the model. The devised algorithms are evaluated against two datasets consisting of two stereo and a triplet pair of the Pleiades images. Two sets of correction functions and a number of GCPs configurations are examined. The obtained geo-referencing accuracy falls below the size of 1GSD.

Distributed Bundle Adjustment in 3D Scene Reconstruction with

2012 ◽  
Vol 38 (9) ◽  
pp. 1428 ◽  
Author(s):  
Xin LIU ◽  
Feng-Mei SUN ◽  
Zhan-Yi HU
Keyword(s):  
Bundle Adjustment ◽  
Scene Reconstruction ◽  
3D Scene ◽  
3D Scene Reconstruction
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