Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jacob Kortbek"'
Autor:
Steen Markvorsen, Jesper Henri Hattel, Jelle Feringa, Jakob Andreas Bærentzen, Toke Bjerge Nørbjerg, Jens Gravesen, Asbjørn Søndergaard, Kasper Hornbak Steenstrup, Kasper Jensen, David Brander, Jacob Kortbek, Kiril Petkov, Lars Ramkilde Knudsen, Kenn Clausen
Publikováno v:
Robotic Fabrication in Architecture, Art and Design 2016 ISBN: 9783319263762
This paper presents a novel method for cost-effective, robotic production of double curved formwork in Expanded Polystyrene (EPS) for in situ and prefabricated concrete construction. A rationalization and segmentation procedure is developed, which al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32329c0f0a4b5fa3d242a6cc7c97fcaf
https://doi.org/10.1007/978-3-319-26378-6_11
https://doi.org/10.1007/978-3-319-26378-6_11
Autor:
Michael Johannes Pihl, Peter Munk, Peter Møller Hansen, Kristoffer Lindskov Hansen, Niels Oddershede, Ye Li, Jacob Kortbek, Jesper Udesen, Jørgen Arendt Jensen, Mads Møller Pedersen, Svetoslav Ivanov Nikolov, Michael Bachmann Nielsen
Publikováno v:
Jensen, J A, Nikolov, S, Udesen, J, Munk, P, Hansen, K L, Pedersen, M M, Hansen, P M, Nielsen, M B, Oddershede, N, Kortbek, J, Pihl, M J & Li, Y 2011, Recent advances in blood flow vector velocity imaging . in 2011 IEEE International Ultrasonics Symposium . IEEE, pp. 262-271, 2011 IEEE International Ultrasonics Symposium, Orlando, Florida, United States, 18/10/2011 . https://doi.org/10.1109/ULTSYM.2011.0064
A number of methods for ultrasound vector velocity imaging are presented in the paper. The transverse oscillation (TO) method can estimate the velocity transverse to the ultrasound beam by introducing a lateral oscillation in the received ultrasound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da6265ffa32ad7827392f4ce881bc179
https://doi.org/10.1109/ultsym.2011.0064
https://doi.org/10.1109/ultsym.2011.0064
Publikováno v:
Kortbek, J, Jensen, J A & Gammelmark, K L 2013, ' Sequential Beamforming Synthetic Aperture Imaging ', Ultrasonics, vol. 53, no. 1, pp. 1-16 . https://doi.org/10.1016/j.ultras.2012.06.006
Synthetic aperture sequential beamforming (SASB) is a novel technique which allows to implement synthetic aperture beamforming on a system with a restricted complexity, and without storing RF-data. The objective is to improve lateral resolution and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d88c4dde0601a3c2597aec9dff136cd
https://pubmed.ncbi.nlm.nih.gov/22809678
https://pubmed.ncbi.nlm.nih.gov/22809678
Publikováno v:
Hemmsen, M C, Kortbek, J, Nikolov, S I & Jensen, J A 2010, Simulation of High Quality Ultrasound Imaging . in Proceedings of IEEE International Ultrasonics Symposium ., 5935765, pp. 1739-1742, 2010 IEEE International Ultrasonics Symposium, San Diego, California, United States, 11/10/2010 . https://doi.org/10.1109/ULTSYM.2010.5935765
This paper investigates if the influence on image quality using physical transducers can be simulated with an sufficient accuracy to reveal system performance. The influence is investigated in a comparative study between Synthetic Aperture Sequential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c51858c114632533f21211d0b17ef227
https://doi.org/10.1109/ultsym.2010.5935765
https://doi.org/10.1109/ultsym.2010.5935765
Publikováno v:
2007 IEEE Ultrasonics Symposium Proceedings.
Directional beamforming has shown promising results for creating vector flow images. The method measures both the flow angle and the magnitude of the velocity. The flow angle is estimated by focusing lines in a range of angles from 0 to 180 degrees.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06f06279562537972e1b5b64db1cd39e
https://doi.org/10.1109/ultsym.2007.613
https://doi.org/10.1109/ultsym.2007.613
Publikováno v:
2007 IEEE Ultrasonics Symposium Proceedings.
This paper applies the concept of virtual sources and mono-static synthetic aperture focusing (SAF) to 2-dimensional imaging with a single rotating mechanically focused concave element with the objective of improving lateral resolution and signal-to-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f44ebc64b453a88ecf8b5c9e11631f7
https://doi.org/10.1109/ultsym.2007.378
https://doi.org/10.1109/ultsym.2007.378
Publikováno v:
Medical Imaging 2007: Ultrasonic Imaging and Signal Processing.
Delay-and-sum array beamforming is an essential part of signal processing in ultrasound imaging. Although the principles are simple, there are many implementation details to consider for obtaining a reliable and computational efficient beamforming. D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d09f5f7043f1e4e8a22d2553aead8ca
https://doi.org/10.1117/12.702996
https://doi.org/10.1117/12.702996
Autor:
Jørgen Arendt Jensen, Jacob Kortbek
Publikováno v:
IEEE Ultrasonics Symposium, 2005..
A method for determining both velocity magnitude and angle in any direction is suggested. The method uses focusing along the velocity direction and cross-correlation for finding the correct velocity magnitude. The angle is found from beamforming dire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::698bf59e313a784236e401cb8d5a4e5c
https://doi.org/10.1109/ultsym.2005.1603101
https://doi.org/10.1109/ultsym.2005.1603101
Publikováno v:
IEEE Ultrasonics Symposium, 2005..
In medical ultrasound interpolation schemes are of- ten applied in receive focusing for reconstruction of image points. This paper investigates the performance of various interpolation scheme by means of ultrasound simulations of point scatterers in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cfd25875b309530c64089058b142470
https://doi.org/10.1109/ultsym.2005.1603262
https://doi.org/10.1109/ultsym.2005.1603262
Publikováno v:
2006 IEEE Ultrasonics Symposium.
Previous investigations have shown promising results in using the directional cross-correlation method to estimate velocity vectors. The velocity vector estimate provides information on both velocity direction and magnitude. The direction is estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099f49768dbc77502c1b33a3ec661c30
https://doi.org/10.1109/ultsym.2006.517
https://doi.org/10.1109/ultsym.2006.517