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A 3D Shape Reconstruction of Ligament from Arthroscopic Images
内視鏡画像からの靭帯の三次元形状復元に関する研究

Satoru MIYAGANO, Shunji HIROKAWA
2005 Transactions of the Japan Society of Mechanical Engineers Series C  
The endoscopic photos were converted into grey scale images, and the shape from shading method was used to generate the objects' 3D shape from the images.  ...  Three-dimensional coordinates were obtained by the level set method from the brightness data on the processed image and the three-dimensional shape of the ACL surface was generated.  ...  Acknowledgements The authors thank Professor Koichiro Deguchi and Associate Professor Takayuki Okatani, Graduate School of Information Sciences, Tohoku University, Japan, for their help of this project  ... 
doi:10.1299/kikaic.71.638 fatcat:vy6c7dixmjh4nkkc7yucavpwfm

Global Shape from Shading for an Endoscope Image [chapter]

S. Y. Yeung, H. T. Tsui, A. Yim
1999 Lecture Notes in Computer Science  
Okatani and Deguchi [13] proposed a local Shape from Shading (SFS) method for endoscope images by assuming the point light, which is close to the projection center, to be at the projection center.  ...  We extended and modified their method and devised a global SFS algorithm for the reconstruction of the complex shape of an internal organ.  ...  T.W.Lee of the Prince of Wales Hospital for his help to get the real images for the experiment. This research was supported by the RGC research grants: CUHK 4162/97E and CUHK 4116/97E.  ... 
doi:10.1007/10704282_35 fatcat:73a7n2wgqfdrpapnpco3nmxble

A Multi-Image Shape-from-Shading Framework for Near-Lighting Perspective Endoscopes

Chenyu Wu, Srinivasa G. Narasimhan, Branislav Jaramaz
2009 International Journal of Computer Vision  
First we extend the shape-from-shading problem to deal with perspective projection and near point light sources that are not co-located with the camera center.  ...  Secondly we propose a multi-image framework which can align partial shapes obtained from different images in the world coordinates by tracking the endoscope.  ...  Appendix A: Iteration of Solutions to Shape Parameters (z, p, q)  ... 
doi:10.1007/s11263-009-0207-3 fatcat:z4sezjm5ercwfeho24athqgxba

Video-endoscopic image analysis for 3D reconstruction of the surgical scene [chapter]

Alicia M. Cano González, P. Sánchez-González, F. M. Sánchez-Margallo, I. Oropesa, F. del Pozo, E. J. Gómez
2009 International Federation for Medical and Biological Engineering Proceedings  
Video-endoscopic image analysis is an important source of information for extracting relevant 3D information of the surgical scene in minimally invasive surgery.  ...  the image for getting a depth-map of the surgical scene.  ...  ACKNOWLEDGMENT Authors would like to express their gratitude to Minimally Invasive Surgery Centre, for technical and personnel support offered during surgical video recording.  ... 
doi:10.1007/978-3-540-89208-3_220 fatcat:vlzcgq5svvcqdhowbhntjyn75q

Towards automated visual flexible endoscope navigation

Nanda van der Stap, Ferdinand van der Heijden, Ivo A. M. J. Broeders
2013 Surgical Endoscopy  
Automating the navigation of endoscopes could be a solution for this problem. This paper summarizes the current state of the art in image-based navigation algorithms.  ...  A trend is observed towards a wider application of flexible endoscopes with an increasing role in complex intraluminal therapeutic procedures.  ...  Surface reconstruction using shape from shading technology (depth estimation).  ... 
doi:10.1007/s00464-013-3003-7 pmid:23670745 fatcat:puwtgifobfaejgvmdpcw45vmna

A Restoration Framework for Correcting Photometric and Geometric Distortions in Camera-based Document Images

Li Zhang, Andy M. Yip, Chew Lim Tan
2007 2007 IEEE 11th International Conference on Computer Vision  
The photometric distortions, usually perceived as shading artifacts, are corrected by separating the shading image from the reflectance image through digital inpainting and surface fitting techniques.  ...  Meanwhile, the extracted shading image is also used to recover the document's surface shape through a Shape-from-Shading (SFS) method with a generic formulation of the image irradiance under arbitrary  ...  Acknowledgment This research is supported in part by National University of Singapore URC grant R252-000-202-112 and A*STAR grant 0421010085.  ... 
doi:10.1109/iccv.2007.4408993 dblp:conf/iccv/ZhangYT07 fatcat:yrgong5mdzc7fdiragopyyb63e

A Combined Approach on RBC Image Segmentation through Shape Feature Extraction

Ruihu Wang, Bin Fang
2012 Mathematical Problems in Engineering  
This paper proposed a combined approach for complex surface segmentation of red blood cell based on shape-from-shading technique and multiscale surface fitting.  ...  By means of the image irradiance equation under SEM imaging condition, the 3D height field could be recovered from the varied shading.  ...  Deguchi and Okatani 21 accomplished shape reconstruction from an endoscope image by shape-from-shading technique for a point light source at the projection center.  ... 
doi:10.1155/2012/194953 fatcat:45bvdbgvivaxfovztym7oifphe

Multi-level strategy for Computer-Assisted Transbronchial Biopsy [chapter]

Ivan Bricault, Gilbert Ferretti, Philippe Cinquin
1998 Lecture Notes in Computer Science  
a needle biopsy), and an intra-operative endoscopic 2D image sequence, in order to provide an assistance to a transbronchial puncture of the tumor.  ...  Because of the specific difficulties resulting from the processed data, original image processing methods were elaborated and a multi-level strategy is introduced.  ...  Acknowledgments : This work was supported in part by the French "Ligue Nationale contre le Cancer", Comitd de l'Is~re.  ... 
doi:10.1007/bfb0056209 fatcat:tga7idio55d7jn72subx3o6z4i

Optical techniques for 3D surface reconstruction in computer-assisted laparoscopic surgery

L. Maier-Hein, P. Mountney, A. Bartoli, H. Elhawary, D. Elson, A. Groch, A. Kolb, M. Rodrigues, J. Sorger, S. Speidel, D. Stoyanov
2013 Medical Image Analysis  
In minimally invasive surgery (MIS), optical techniques are an increasingly attractive approach for in vivo 3D reconstruction of the soft-tissue surface geometry.  ...  This information is prerequisite to the registration of multi-modal patient-specific data for enhancing the surgeon's navigation capabilities by observing beyond exposed tissue surfaces and for providing  ...  Acknowledgements The authors would like to acknowledge the Royal Academy of Engineering/EPSRC Research Fellowship and the German Research Foundation (DFG, PD 15577 and Research Training Group 1126) for  ... 
doi:10.1016/j.media.2013.04.003 pmid:23837969 fatcat:44gqmq6ms5f2ril4xrn574eljq

Intra-operative monocular 3D reconstruction for image-guided navigation in active locomotion capsule endoscopy

Gastone Ciuti, Marco Visentini-Scarzanella, Alessio Dore, Arianna Menciassi, Paolo Dario, Guang-Zhong Yang
2012 2012 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob)  
To the best of our knowledge, this is the first practical system for Shape-from-Shading calibration aimed at guidance applications that will finally be applied to an endoscopic active locomotion platform  ...  In this paper we propose a system to reliably calibrate a Shape-from-Shading system to recover the unknown scale factor immediately prior to a WCE procedure.  ...  ACKNOWLEDGEMENTS The authors wish to thank A. Verbeni, V. Castelli, M. Nardi and D. Stoyanov for their help in the setup development and in performing the experimental test.  ... 
doi:10.1109/biorob.2012.6290771 fatcat:bo4ecmyrnbg2jdsyqclmwuipoa

Tissue Shape Acquisition with a Hybrid Structured Light and Photometric Stereo Endoscopic System [chapter]

Marco Visentini-Scarzanella, Tatsuya Hanayama, Ryunosuke Masutani, Shigeto Yoshida, Yoko Kominami, Yoji Sanomura, Shinji Tanaka, Ryo Furukawa, Hiroshi Kawasaki
2016 Lecture Notes in Computer Science  
In situ 3D reconstruction from endoscopic images is important to determine the correct course of action for, e.g., treatment of abnormal growths.  ...  By taking into account the tissue characteristics and the light falloff, our Photometric Stereo formulation provides dense metric 3D shape information without the need for surface normal integration.  ...  Acknowledgments This work was supported by The Japanese Foundation for the Promotion of Science, Grant-in-Aid for JSPS Fellows no.26.04041.  ... 
doi:10.1007/978-3-319-29965-5_5 fatcat:lffprz5ojverbmjremii2zpmna

Shape from Shading Based on Lax-Friedrichs Fast Sweeping and Regularization Techniques With Applications to Document Image Restoration

Li Zhang, Andy M. Yip, Chew Lim Tan
2007 2007 IEEE Conference on Computer Vision and Pattern Recognition  
In this paper, we describe a 2-pass iterative scheme to solve the general partial differential equation (PDE) related to the Shape-from-Shading (SFS) problem under both distant and close point light sources  ...  To reduce the noise sensitivity, a minimization method thus follows to smooth out the abrupt ridges in the initial result and produce a better reconstruction.  ...  Acknowledgment This research is supported in part by National University of Singapore URC grant R252-000-202-112 and Agency for Science, Technology and Research(A*STAR) grant 0421010085.  ... 
doi:10.1109/cvpr.2007.383287 dblp:conf/cvpr/ZhangYT07 fatcat:7hyejxfqtrd45pt5mcffunmwqm

Shape-Enhanced Surgical Visualizations and Medical Illustrations with Multi-flash Imaging [chapter]

Kar-Han Tan, James Kobler, Paul Dietz, Ramesh Raskar, Rogerio S. Feris
2004 Lecture Notes in Computer Science  
We present a novel approach for enhancing images and video used in endoscopic surgery so that they are better able to convey shape.  ...  By highlighting the detected edges, suppressing unnecessary details, or combining features from multiple images, the resulting images convey more clearly the 3D structure of the subject.  ...  Work at Massachusetts Eye and Ear Infirmary supported by the Eugene B. Casey Foundation. We are grateful for support and suggestions  ... 
doi:10.1007/978-3-540-30136-3_54 fatcat:ftbmwqzm4ngfbffcimhp3gxklm

Streaming video-based 3D reconstruction method compatible with existing monoscopic and stereoscopic endoscopy systems

Henri Bouma, Wannes van der Mark, Pieter T. Eendebak, Sander H. Landsmeer, Adam W. M. van Eekeren, Frank B. ter Haar, F. Pieter Wieringa, Jean-Paul van Basten
2012 Sensing Technologies for Global Health, Military Medicine, Disaster Response, and Environmental Monitoring II; and Biometric Technology for Human Identification IX  
We describe a novel technology that reconstructs 3D-panoramas from endoscopic video streams providing a much wider cumulative overview. The method is compatible with any endoscope.  ...  The resulting 3D-reconstructions can be directly applied in simulators and e-learning. Extended to real-time processing, the method looks promising for telesurgery or other remote vision-guided tasks.  ...  ACKNOWLEDGEMENT The work in this paper was financially supported by SenterNovem (currently AgentschapNL) in the high-tech top project IGIT4Health (HTT09011).  ... 
doi:10.1117/12.918592 fatcat:r5f7ri4wavbkhedb2tcvdonelm

Comparative Validation of Single-Shot Optical Techniques for Laparoscopic 3-D Surface Reconstruction

L. Maier-Hein, A. Groch, A. Bartoli, S. Bodenstedt, G. Boissonnat, P.-L. Chang, N. T. Clancy, D. S. Elson, S. Haase, E. Heim, J. Hornegger, P. Jannin (+11 others)
2014 IEEE Transactions on Medical Imaging  
Intra-operative imaging techniques for obtaining the shape and morphology of soft-tissue surfaces in vivo are a key enabling technology for advanced surgical systems.  ...  The study suggests complementary advantages of the different techniques with respect to accuracy, robustness, point density, hardware complexity and computation time.  ...  ACKNOWLEDGEMENTS The authors would like to thank Richard Wolf GmbH for providing the ToF endoscope and the HD stereo endoscope for this study.  ... 
doi:10.1109/tmi.2014.2325607 pmid:24876109 fatcat:4sk6eieiefb2pb7yduilo57qru
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