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Automatic detection and decoding of photogrammetric coded targets

Udaya Wijenayake, Sung-In Choi, Soon-Yong Park
2014 2014 International Conference on Electronics, Information and Communications (ICEIC)  
In this research, we introduce an automated coded target detection method which can be used to enhance the efficiency of the Photogrammetry.  ...  Close-range Photogrammetry is widely used in many industries because of the cost effectiveness and efficiency of the technique.  ...  ACKNOWLEDGMENT This work was supported by the Industry Core Technology Program granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 10043897) and Samsung Heavy  ... 
doi:10.1109/elinfocom.2014.6914413 dblp:conf/elinfocom/WijenayakeCP14 fatcat:w3qvu45ckvdz5pngnvmlowzlza

DEEP LEARNING FOR CODED TARGET DETECTION

V. V. Kniaz, L. Grodzitskiy, V. A. Knyaz
2021 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
This paper is focused on the development of a new deep convolutional network for automatic detection and recognition of the coded targets and sub-pixel estimation of their centers.  ...  A wide range of coded targets was developed to date. The targets differ in their decoding algorithms.  ...  This paper is focused on the development of a new deep convolutional network for automatic detection and recognition of the coded targets and sub-pixel estimation of their centers.  ... 
doi:10.5194/isprs-archives-xliv-2-w1-2021-125-2021 fatcat:77u2jwyosrguhhgoqhkbuf65oi

Automated Raw Part Alignment by a Novel Machine Vision Approach

A. Mendikute, M. Zatarain
2013 Procedia Engineering  
Important skills are necessary, and, besides the time consumption of workforce and machine, the risk of getting into shortage of material is high.  ...  Alignment process requires two steps: first, characterization of geometry, and second, alignment.  ...  cost photogrammetric approach based on the measurement of optical targets located only on the specific surfaces to be machined Automatic decoding of the ideal part geometry, by means of the machine axes  ... 
doi:10.1016/j.proeng.2013.08.186 fatcat:fktitf6jrjbi7eqgmlgwhzrree

Automatic Three-Dimensional Measurement of Large-Scale Structure Based on Vision Metrology

Zhaokun Zhu, Banglei Guan, Xiaohu Zhang, Daokui Li, Qifeng Yu
2014 The Scientific World Journal  
A new kind of coded target consisting of circular retroreflective discs is designed, and corresponding detection and recognition algorithms based on blob detection and clustering are presented.  ...  All relevant key techniques involved in photogrammetric vision metrology for fully automatic 3D measurement of large-scale structure are studied.  ...  The Scientific World Journal Conflict of Interests The authors declare that there is no conflict of interests regarding the publication of this paper.  ... 
doi:10.1155/2014/185269 pmid:24701143 pmcid:PMC3948647 fatcat:4xteix7jznhyvejgsplcxuhr7a

AUTOMATING THE MEASUREMENT OF RED CORAL IN SITU USING UNDERWATER PHOTOGRAMMETRY AND CODED TARGETS

P. Drap, D. Merad, A. Mahiddine, J. Seinturier, P. Gerenton, D. Peloso, P.-M. Boï, O. Bianchimani, J. Garrabou
2013 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
validation (checking measurement consistency to detect possible errors in measurement or interpretation).  ...  The analysis of the photographs provides reliable measurements on colony sizes (basal diameter and maximum height), occurrence of breakage of colonies and the occurrence of necrosis.  ...  In our application (Figure 7) , the quadrat has 20 coded targets, which are automatically detected and used for photograph orientation, quadrat identification and scaling.  ... 
doi:10.5194/isprsarchives-xl-5-w2-231-2013 fatcat:z3svzpoeyvgkdj5kwdephbcvcy

Late or Earlier Information Fusion From Depth and Spectral Data? Large-Scale Digital Surface Model Refinement by Hybrid-CGAN

Ksenia Bittner, Peter Reinartz, Marco Korner
2019 2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)  
We present the workflow of a digital surface model (DSM) refinement methodology using a HYBRID-CGAN where the generative part consists of two encoders and a common decoder which blends the spectral and  ...  The inputs to the Hybrid-cGAN are single-channel photogrammetric DSMs with continuous values and single-channel pan-chromatic (PAN) half-meter resolution satellite images.  ...  The network automatically combines the advantages of pan-chromatic (PAN) imagery and photogrammetric DSM, while complementing their individual drawbacks, and, from obtained results, shows the potential  ... 
doi:10.1109/cvprw.2019.00188 dblp:conf/cvpr/BittnerR019 fatcat:b5wop7rto5bmvohntqtq2vuhvm

Vision metrology and Structure from Motion for archaeological heritage 3D reconstruction: a Case Study of various Roman mosaics

Mauro Lo Brutto, Gino Dardanelli
2017 ACTA IMEKO  
The research involved an evaluation of the potential and the related issues of the photogrammetric/computer vision approach for 3D mosaic documentation, particularly regarding the issue of camera calibration  ...  In order to evaluate the optimal photogrammetric/computer vision workflow in this work, three different surveys were performed on three mosaics of different sizes and locations.  ...  Concentric rings coded targets with a 12 bit pattern have been used ( Figure 6 ); these targets are relatively easy to recognize and decode.  ... 
doi:10.21014/acta_imeko.v6i3.458 fatcat:77m3wnyfwfhj3lvnynkh537fcy

Securing Color Fidelity in 3D Architectural Heritage Scenarios

Marco Gaiani, Fabrizio Apollonio, Andrea Ballabeni, Fabio Remondino
2017 Sensors  
Commercial software is capable of doing a semi-automatic color reference target detection.  ...  Automatic target detection is then an important feature and become a needed requirement in automated processing pipelines.  ...  Author Contributions: All authors equally contributed to the procedure development, data processing and paper preparation. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s17112437 pmid:29068359 pmcid:PMC5712986 fatcat:gkcwkzjrjzep5d56le6mrp6wjq

A Generalized Multi-Task Learning Approach to Stereo DSM Filtering in Urban Areas [article]

Lukas Liebel, Ksenia Bittner, Marco Körner
2020 arXiv   pre-print
Our encoder-decoder models with shared encoders and multiple task-specific decoders leverage roof type classification as a secondary task and multiple objectives including a conditional adversarial term  ...  Our method consistently outperforms the state of the art on common data, both quantitatively and qualitatively, and generalizes well to a new dataset of an independent study area.  ...  Acknowledgements The work of Lukas Liebel was funded by the German Federal Ministry of Transport and Digital Infrastructure (BMVI) under reference 16AVF2019A.  ... 
arXiv:2004.02493v2 fatcat:7losmhouibcxhk5qf7iobuvmcq

Automated End-to-End Workflow for Precise and Geo-accurate Reconstructions using Fiducial Markers

M. Rumpler, S. Daftry, A. Tscharf, R. Prettenthaler, C. Hoppe, G. Mayer, H. Bischof
2014 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
We integrate an automatic camera calibration and georeferencing method into our image-based reconstruction pipeline based on binary-coded fiducial markers as artificial, individually identifiable landmarks  ...  However, many of these methods require manual steps in the processing chain and for many photogrammetric applications such as mapping, recurrent topographic surveys or architectural and archaeological  ...  The numbers from top to bottom indicate the probabilities for center, binary code and outer circle. The marker with ID 20 has been successfully decoded.  ... 
doi:10.5194/isprsannals-ii-3-135-2014 fatcat:mvtykcwsuzaida6u4xlvjau5fm

Late or Earlier Information Fusion from Depth and Spectral Data? Large-Scale Digital Surface Model Refinement by Hybrid-cGAN [article]

Ksenia Bittner, Marco Körner, Peter Reinartz
2019 arXiv   pre-print
We present the workflow of a DSM refinement methodology using a Hybrid-cGAN where the generative part consists of two encoders and a common decoder which blends the spectral and height information within  ...  The inputs to the Hybrid-cGAN are single-channel photogrammetric DSMs with continuous values and single-channel pan-chromatic (PAN) half-meter resolution satellite images.  ...  Moreover, the generated roof surfaces are smoother and more planar, giving evidence of the positive influence of the auxiliary normal vector loss function.  ... 
arXiv:1904.09935v1 fatcat:p52b2bjk35gcvkm2kulmnpkd2q

A COMBINED APPROACH FOR LONG-TERM MONITORING OF BENTHOS IN ANTARCTICA WITH UNDERWATER PHOTOGRAMMETRY AND IMAGE UNDERSTANDING

F. Menna, E. Nocerino, S. Malek, F. Remondino, S. Schiaparelli
2022 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
photogrammetric surveys of different epochs.  ...  Detailed studies of the Antarctic benthos are in fact particularly important for a better understanding of benthos dynamics and potential climate-driven shifts.  ...  ACKNOWLEDGEMENTS This study has been partially supported by the project "Ross Sea Benthic Monitoring Program: new non-destructive and machine-learning approaches for the analysis of benthos patterns" (  ... 
doi:10.5194/isprs-archives-xliii-b2-2022-935-2022 fatcat:v3p76uhemjgmngop2umhul7kbe

Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia

Stefano Cara, Paolo Valera, Carlo Matzuzzi
2021 Minerals  
Furthermore, this paper demonstrates the potentialities of an integrated minero-petrographic and photogrammetric approach for the characterization of small artefacts, providing an effective tool for more  ...  In this paper, we propose a multidisciplinary approach using mineralogical (X-ray powder diffraction) and petrographic (thin section) analysis of stone materials, as well as an experimental photogrammetric  ...  Acknowledgments: We are very grateful to Alessandro Usai (Archaeological Superintendence of Cagliari and Oristano, Sardinia, Italy) for providing the stone moulds for this study.  ... 
doi:10.3390/min11111192 fatcat:uuyobggonfhyzjb4iaxk2o3ila

Efficiency of +IDonBlender Photogrammetric Tool in Facial Prosthetics Rehabilitation – An Evaluation Study

Mohammed R. Falih, Fanar M. Abed, Rodrigo Salazar-Gamarra, Luciano Lauria Dib
2021 Karbala International Journal of Modern Science  
These targets were (29*0.165 ¼ 4.78 mm), and to ensure that all targets designed to be identified and detected automatically by will be detected, the 5 mm diameter  ...  4 check ware, coded targets in source photos are detected points).  ... 
doi:10.33640/2405-609x.3167 fatcat:l3ik4irq3rckrf7c4qma6asr7y

CIRCULAR CODED TARGET FOR AUTOMATION OF OPTICAL 3D-MEASUREMENT AND CAMERA CALIBRATION

SUNG JOON AHN, WOLFGANG RAUH, SUNG IL KIM
2001 International journal of pattern recognition and artificial intelligence  
In this paper, we present a circular coded target for automatic image point measurement and identification.  ...  The applied image processing method will be described in detail, and we will show some application examples of the circular coded target to optical 3D-measurement techniques.  ...  as it is being obtained from the change of the image gray values, and an error-free decoding of the coded target will be difficult.  ... 
doi:10.1142/s0218001401001222 fatcat:zxz6lkwvufdepfek4jtgdxsswu
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