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A GPU framework for parallel segmentation of volumetric images using discrete deformable models

Jérôme Schmid, José A. Iglesias Guitián, Enrico Gobbetti, Nadia Magnenat-Thalmann
2010 The Visual Computer  
A lot of difficulties may arise related to, for example, the different image modalities, noise and artifacts of source images, or the shape and appearance variability of the structures to segment.  ...  Motivated by problems of image segmentation in the medical field, we present in this paper a GPU framework based on explicit discrete deformable models, implemented over the NVidia CUDA architecture, aimed  ...  Our segmentation approach is based on physically-based deformable models [6] .  ... 
doi:10.1007/s00371-010-0532-0 fatcat:g5hedu5sqbgnbgbbamyojufqtq

User-guided volumetric approximation using swept sphere volumes for physically based animation

Myungsoo Bae, Jinwook Kim, Young J. Kim
2012 Computer Animation and Virtual Worlds  
Our method combines automatic and interactive segmentation methods to give users an intuitive and easy way to approximate 3D meshes.  ...  These decomposed surface regions can be interactively refined further by splitting and/or merging using a sketch-based input.  ...  Conclusions In this paper, we have proposed a semiautomatic volumetric approximation approach for physically-based animation.  ... 
doi:10.1002/cav.1461 fatcat:3rh6wyqq3ncydnk45d5azgx6yi

Capturing Deformations of Interacting Non-rigid Objects Using RGB-D Data

Antoine Petit, Stephane Cotin, Vincenzo Lippiello, Bruno Siciliano
2018 2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)  
A joint registration framework is proposed, based on physical Finite Element Method (FEM) elastic and interaction models.  ...  The different segmented point clouds are then processed to estimate rigid transformations with on an ICP algorithm, and to determine geometrical point-to-point correspondences with the meshes.  ...  Therefore, we advocate for the use of a physics based approach to model both the deformations and the interactions, by relying on volumetric FEM-based models, as proposed in [26, 25] for single elastic  ... 
doi:10.1109/iros.2018.8593756 dblp:conf/iros/0003CLS18 fatcat:g5lnb7havvhvna2pdv7flmov5i

Virtual Hair Handle: A Model for Haptic Hairstyling [article]

Ugo Bonanni, Petr Kmoch
2008 Eurographics State of the Art Reports  
Unlike previous approaches, we adapt our hair simulation model to fulfil the requirements of haptic interaction.  ...  However, despite significant advances in hair simulation during the last decades, physically based haptic interaction with hair is still an unresolved problem.  ...  Despite its complexity, the Super-Helix approach meets the requirements of both computer graphics and human-computer interaction and allows to explore physically based haptic interaction with hair.  ... 
doi:10.2312/egs.20081040 fatcat:4mtk5kw76nglld4gofkh2a4xve

INTERACTIVE CADASTRAL BOUNDARY DELINEATION FROM UAV DATA

S. Crommelinck, B. Höfle, M. N. Koeva, M. Y. Yang, G. Vosselman
2018 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
This delineation is to no extent automated, even though physical objects automatically retrievable through image analysis methods mark a large portion of cadastral boundaries.  ...  This study proposes (i) a methodology that automatically extracts and processes candidate cadastral boundary features from UAV data, and (ii) a procedure for a subsequent interactive delineation.  ...  We are grateful to Claudia Stöcker for capturing and processing the UAV data, as well as to the GIScience Research Group at Heidelberg University for supporting this work during a 6-month research visit  ... 
doi:10.5194/isprs-annals-iv-2-81-2018 fatcat:3umcupe5yzcyjmzznoz6m4kqte

Physically Based Virtual Surgery Planning and Simulation Tools for Personal Health Care Systems [chapter]

Firat Dogan, Yasemin Atilgan
2009 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
The virtual surgery planning and simulation tools have gained a great deal of importance in the last decade in a consequence of increasing capacities at the information technology level.  ...  The modern hardware architectures, large scale database systems, grid based computer networks, agile development processes, better 3D visualization and all the other strong aspects of the information technology  ...  In section two, focus will be given to specifically physically based approaches, which are used for modeling virtual surgery.  ... 
doi:10.1007/978-3-642-03978-2_8 fatcat:lrqbeqzrrrd3tftq7eq7jd7qyy

InformationSense

Simon Butscher, Maximilian Dürr, Harald Reiterer
2017 Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies  
, and users can benefit from their pre-existing knowledge about the interaction with physical objects when interacting with deformable displays.  ...  The comparison of InformationSense with a rigid display interface unveiled the trade-off that while users are able to interact with InformationSense more naturally and significantly preferred InformationSense  ...  However, the approach tends to segment strongly curved areas of the cloth into several segments although there is no fold edge.  ... 
doi:10.1145/3090053 fatcat:ug7hfq2gurcvrm6y34pbaghd5u

Self-supervised Transfer Learning for Instance Segmentation through Physical Interaction [article]

Andreas Eitel and Nico Hauff and Wolfram Burgard
2020 arXiv   pre-print
To overcome the time-consuming process of manually labeling data for new environments, we present a transfer learning approach for robots that learn to segment objects by interacting with their environment  ...  Furthermore, we combine our approach with recent approaches for training with noisy labels in order to better cope with induced label noise.  ...  CONCLUSIONS In this work, we presented a self-supervised transfer learning approach for instance segmentation that leverages physical robot interaction with its environment to automatically generate a  ... 
arXiv:2005.09484v1 fatcat:navvvb7im5h5xklbs6kynpbrga

PolySurface

Aluna Everitt, Jason Alexander
2017 Proceedings of the 2017 Conference on Designing Interactive Systems - DIS '17  
This is achieved by segmenting virtual representations of the given data and mapping it to a dynamic physical polygonal surface.  ...  Finally, we reflect on the content generated to understand if our approach is effective at representing intended output based on a set of user defined functionality requirements.  ...  Our approach enables users from a range of domains to design and construct interactive shape-changing displays based on their own input data.  ... 
doi:10.1145/3064663.3064677 dblp:conf/ACMdis/EverittA17 fatcat:w4mpto55abfwba6h3fy6vmhany

Context‐Aware Mixed Reality: A Learning‐Based Framework for Semantic‐Level Interaction

L. Chen, W. Tang, N. W. John, T. R. Wan, J. J. Zhang
2019 Computer graphics forum (Print)  
We present a semantic-based interactive MR framework that is beyond current geometry-based approaches, offering a step change in generating high-level context-aware interactions.  ...  We demonstrate our approach by developing a material-aware prototype system for context-aware physical interactions between the real and virtual objects.  ...  In the next section, we review related work on geometry-based MR interactions and recent approaches to semantic segmentation using convolutional neural network (CNN).  ... 
doi:10.1111/cgf.13887 fatcat:6ennelqspreudiodpmbbsmv5vq

Anjali1, Manisha Sabharwal2 1Research Scholar, Department of Food and Nutrition, Lady Irwin College, Delhi University, New Delhi 110001, India. 2Department of Food and Nutrition, Lady Irwin College, Delhi University, New Delhi 110001, India. Corresponding author Email: anjalijuly7@gmail.com Article Publishing History Received: 23-03-2018 Accepted: 28-06-2018 Plagiarism Check: Yes Reviewed by: Dr. Vera Ferro Lebres (Portugal) Second Review by: Dr. Adibah Hanim Ismail (Malaysia) Final Approval by: Dr. Neha Sa ...

Anjali Anjali, Manisha Sabharwal
2018 Current Research in Nutrition and Food Science Journal  
Data were analysed using inductive approach. Participants identified a number of obstacles to physical activity.  ...  This study aimed to explore the perceived barriers to physical activity among college students via qualitative research design.  ...  Acknowledgements The authors sincerely thank the study participants for their contribution to the research. The authors would specifically like to show the gratitude to Dr.  ... 
doi:10.12944/crnfsj.6.2.18 fatcat:ujh7lijbzzdddccxxch3wh2fbi

Page 1 of Journal of Polymer Science. Part B, Polymer Physics Vol. 29, Issue 1 [page]

1991 Journal of Polymer Science. Part B, Polymer Physics  
But it is well known that there are some problems with the approach based on this theoretical treatment.  ...  segments in the mixture, caused by the interaction.  ... 

Context-Aware Mixed Reality: A Framework for Ubiquitous Interaction [article]

Long Chen, Wen Tang, Nigel John, Tao Ruan Wan, Jian Jun Zhang
2018 arXiv   pre-print
We present a semantic based interactive MR framework that exceeds the current geometry level approaches, a step change in generating high-level context-aware interactions.  ...  We demonstrate our approach with a material-aware prototype system for generating context-aware physical interactions between the real and the virtual objects.  ...  to generate corresponding physical interactions based on the material property of the object that the user is interacting with, as shown in a shooting game example for object-specific material-aware interactions  ... 
arXiv:1803.05541v1 fatcat:p6rf7crsprhtdmoslnecyeyp64

Selective Stylization for Visually Uniform Tangible AR [article]

Jan Fischer, Daniel Flohr, Wolfgang Straßer
2008 ICAT-EGVE 2014 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments  
In tangible user interfaces, physical props are used for direct interaction with a computer system.  ...  This typically leads to the problem that the virtual augmentations have a distinct, simple computer-generated look, which makes them easily distinguishable from the real environment and physical props.  ...  Note that the base plate of the interaction zone is drawn as a textured quadrangle. We also want to stylize physical props in the tangible application.  ... 
doi:10.2312/egve/egve08/001-008 fatcat:kycbo4xauzew3eokemhxwrsoim

Using GOMS and NASA-TLX to Evaluate Human–Computer Interaction Process in Interactive Segmentation

Anjana Ramkumar, Pieter Jan Stappers, Wiro J. Niessen, Sonja Adebahr, Tanja Schimek-Jasch, Ursula Nestle, Yu Song
2016 International Journal of Human-Computer Interaction  
For this, we conducted an experiment where three physicians used two interactive segmentation approaches to segment different types of organs at risk for radiotherapy planning.  ...  HCI plays an important role in interactive medical image segmentation.  ...  Acknowledgements The authors would like to thank Mr. Jose Dolz and Dr. Hortense A Kirisli from Aquilab, France, for helping in the implementation of the prototypes.  ... 
doi:10.1080/10447318.2016.1220729 fatcat:h332rpzesnc47cnrfkma37rnka
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