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Relevant bibliographies by topics / Non-rigid alignment errors

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Academic literature on the topic 'Non-rigid alignment errors'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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Journal articles on the topic "Non-rigid alignment errors"

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Syzrantsev, V. N., and A. I. Starikov. "Synthesis of an adaptive cylindrical gear with arched teeth with two contact zones spaced along the length of the tooth." Omsk Scientific Bulletin, no. 188 (2023): 38–45. http://dx.doi.org/10.25206/1813-8225-2023-188-38-45.

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Cylindrical gears with arched teeth have the required performance in conditions of both non-rigid machine bodies and inevitable manufacturing and assembly errors. Error compensation is carried out by self-alignment of the wheels, the possibilities of which are limited in gears with one line of engagement. The article investigates an adaptive gear with arched teeth with two contact zones, which provides selfalignment of the wheels, regardless of the angle of misalignment of the teeth in engagement. The most promising in terms of implementation in the industry method of cutting arched teeth with

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Römer, W., T. Hothorn, A. Pfahlberg, et al. "Anatomical accuracy of lesion localization." Nuklearmedizin 44, no. 04 (2005): 149–55. http://dx.doi.org/10.1055/s-0038-1625102.

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SummaryThe aim of this study was to evaluate the anatomical accuracy and reproducibility of retrospective interactive rigid image registration (RIR) between routinely archived X-ray computer tomography (CT) and positron emission tomography performed with 18F-deoxyglucose (FDG-PET) in oncological patients. Methods: Two observers registered PET and CT data obtained in 37 patients using a commercially available image fusion tool. RIR was performed separately for the thorax and the abdomen using physiological FDG uptake in several organs as a reference. One observer performed the procedure twice (

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Yuan, Munan, Xiru Li, and Haibao Tan. "An Elastic Fine-Tuning Dual Recurrent Framework for Non-Rigid Point Cloud Registration." Sensors 25, no. 11 (2025): 3525. https://doi.org/10.3390/s25113525.

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Non-rigid transformation is based on rigid transformation by adding distortions to form a more complex but more consistent common scene. Many advanced non-rigid alignment models are implemented using supervised learning; however, the large number of labels required for the training process makes their application difficult. Here, an elastic fine-tuning dual recurrent computation for unsupervised non-rigid registration is proposed. At first, we transform a non-rigid transformation into a series of combinations of rigid transformations using an outer recurrent computational network. Then, the in

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Venet, Ludovic, Sarthak Pati, Michael D. Feldman, MacLean P. Nasrallah, Paul Yushkevich, and Spyridon Bakas. "Accurate and Robust Alignment of Differently Stained Histologic Images Based on Greedy Diffeomorphic Registration." Applied Sciences 11, no. 4 (2021): 1892. http://dx.doi.org/10.3390/app11041892.

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Histopathologic assessment routinely provides rich microscopic information about tissue structure and disease process. However, the sections used are very thin, and essentially capture only 2D representations of a certain tissue sample. Accurate and robust alignment of sequentially cut 2D slices should contribute to more comprehensive assessment accounting for surrounding 3D information. Towards this end, we here propose a two-step diffeomorphic registration approach that aligns differently stained histology slides to each other, starting with an initial affine step followed by estimating a de

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Gatenbee, Chandler Dean, Ann-Marie Baker, Sandhya Prabhakaran, Mark Robertson-Tessi, Trevor Graham, and Alexander R. Anderson. "Abstract 2078: VALIS: Virtual Alignment of pathoLogy Image Series for multi-gigapixel whole slide images." Cancer Research 83, no. 7_Supplement (2023): 2078. http://dx.doi.org/10.1158/1538-7445.am2023-2078.

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Abstract Interest in spatial omics is on the rise, but generation of highly multiplexed images used in many spatial analyses remains challenging, due to cost, expertise, methodical constraints, and/or access to technology. An alternative to performing highly multiplexed staining is to register collections of whole slide images (WSI), creating a collection of aligned images that can undergo spatial analyses. However, registration of WSI is two part problem, with the first being the alignment itself, and the second being the application of the transformations to huge multi-gigapixel images. To a

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Ipsen, Svenja, Ralf Bruder, Esben Schjødt Worm, et al. "Simultaneous acquisition of 4D ultrasound and wireless electromagnetic tracking for in-vivo accuracy validation." Current Directions in Biomedical Engineering 3, no. 2 (2017): 75–78. http://dx.doi.org/10.1515/cdbme-2017-0016.

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AbstractUltrasound is being increasingly investigated for real-time target localization in image-guided interventions. Yet, in-vivo validation remains challenging due to the difficulty to obtain a reliable ground truth. For this purpose, real-time volumetric (4D) ultrasound imaging was performed simultaneously with electromagnetic localization of three wireless transponders implanted in the liver of a radiotherapy patient. 4D ultrasound and electromagnetic tracking were acquired at framerates of 12Hz and 8Hz, respectively, during free breathing over 8 min following treatment. The electromagnet

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He, Jingjie, Jian Huang, Wenjing Zhang, Feng Xu, Qiang Liu, and He Li. "PAM: Research on posture alignment method for camera robot system." International Journal of Advanced Robotic Systems 21, no. 5 (2024). http://dx.doi.org/10.1177/17298806241278908.

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By acquiring the posture information of the rigid body with markers, the camera motion on the robot end-effector can be controlled remotely. The essential step of posture alignment in teleoperation is to calibrate the transformation matrix of the world coordinate system of the optical motion capture system and the robot base coordinate system. It was necessary to change the position and attitude of the camera robot in the studio frequently. At the same time, the studio was complex with strong personnel mobility, thus the world coordinate system of the optical tracking system in the studio was

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Rios-Munoz, G., C. Perez-Hernandez, F. Fernandez-Aviles, and A. Arenal. "Atrial chamber colocalization for multiple 3D imaging techniques in atrial fibrillation." European Heart Journal 42, Supplement_1 (2021). http://dx.doi.org/10.1093/eurheartj/ehab724.0486.

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Abstract Introduction There exist many imaging techniques and systems to reproduce atrial chambers in 3D. These technologies include electroanatomical (EA) mapping systems, noninvasive electrocardiographic imaging (ECGI), magnetic resonance imaging (MRI), or computed tomography (CT) scans. In the case of atrial fibrillation (AF), the most employed non-pharmacological treatment is catheter ablation to electrically isolate the pulmonary veins from the rest of the left atrium. Driver mechanisms such as focal or rotational activity have been proposed as possible initiating and maintaining mechanis

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Wilke, Franziska, Harold Matthews, Noah Herrick, Nichole Dopkins, Peter Claes, and Susan Walsh. "A novel approach to craniofacial analysis using automated 3D landmarking of the skull." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-63137-1.

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AbstractAutomatic dense 3D surface registration is a powerful technique for comprehensive 3D shape analysis that has found a successful application in human craniofacial morphology research, particularly within the mandibular and cranial vault regions. However, a notable gap exists when exploring the frontal aspect of the human skull, largely due to the intricate and unique nature of its cranial anatomy. To better examine this region, this study introduces a simplified single-surface craniofacial bone mask comprising of 6707 quasi-landmarks, which can aid in the classification and quantificati

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Atzampou, Panagiota, Peter C. Meijers, Apostolos Tsouvalas, and Andrei V. Metrikine. "Non-contact electromagnetic control of torsional vibrations of a rigid cylinder." Nonlinear Dynamics, September 27, 2024. http://dx.doi.org/10.1007/s11071-024-10365-9.

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AbstractThe successful deployment of offshore wind turbines hinges on the installation process, particularly the temporary suspension of the turbine components during assembly. External factors or imbalances in control forces can induce vibrations, emphasizing the need for precise control, especially in the torsional mode, to ensure the delicate alignment required for bolted connections. This paper introduces a contactless technique to control the torsional vibrations of a rigid cylinder using electromagnetic interaction between two magnets, incorporating magnetically-imposed damping and activ

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Dissertations / Theses on the topic "Non-rigid alignment errors"

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Haque, Mohammadul S. K. "Denoising and Refinement Methods for 3D Reconstruction." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5354.

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Capturing raw 3D data from the real world is the initial step for many 3D reconstruction pipelines in different computer vision applications. However, due to inaccuracies in measurement and oversimplification in mathematical assumptions during capture, 3D data remain contaminated with significant amounts of errors. In this thesis, we investigate two different types of errors that are invariably encountered in 3D reconstruction. The first type of errors comprises the random measurement error or noise that is inevitably present in raw 3D data obtained from the real world. The second type o

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