Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Hans-Aloys Wischmann"'
Publikováno v:
Journal of Real-Time Image Processing. 13:147-160
Motion estimation is a key building block of image processing pipelines in many different contexts, ranging from efficient coding of video sequences in the consumer electronics domain (TV, DVD, BD) to professional medical applications. Many block-mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6330897aa155531d4440f1122673f23d
https://doi.org/10.1007/s11554-015-0543-1
https://doi.org/10.1007/s11554-015-0543-1
Autor:
R. Drenckhahn, Michael Wagner, T.D. Waberski, Hans-Aloys Wischmann, Helmut Buchner, Manfred Fuchs
Publikováno v:
Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section. 100:332-342
The source of the radial field of P22 was previously attributed either to the precentral (area 4) or postcentral (area 1) gyrus, on the basis of interpretation of potential maps recorded on the skin or cortex, respectively. The present study used dip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71e1a69a30e26e6f29a3638c2c08c264
https://doi.org/10.1016/0168-5597(96)95678-6
https://doi.org/10.1016/0168-5597(96)95678-6
Publikováno v:
IEEE Transactions on Biomedical Engineering. 42:416-420
The overlay of functional and morphological images is an essential tool for advanced and improved functional diagnosis showing the correlation between spatial structures or lesions and functional areas. The authors present an improved coordinate syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::431975b4260b9f5bce40519d4b89cdb0
https://doi.org/10.1109/10.376136
https://doi.org/10.1109/10.376136
Autor:
Patrick Berg, Helmut Buchner, Manfred Fuchs, Irene Ludwig, Olaf Dössel, Achim Knepper, Hans-Aloys Wischmann
Publikováno v:
ResearcherID
At the current state of technology, multichannel simultaneous recording of combined electric potentials and magnetic fields should constitute the most powerful tool for separation and localization of focal brain activity. We performed an explorative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86336dcb229d34e3dacc83677f04f1c5
https://doi.org/10.1007/bf01211175
https://doi.org/10.1007/bf01211175
Publikováno v:
Review of Scientific Instruments. 64:3053-3060
Current sources in the human body can be localized by measuring the biomagnetic fields with multichannel SQUID systems. Important system aspects are the noise level, the ambient field suppression, the dynamic range, the reliability, the number of cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a5226f83da36ca80b183fc7f20cea1c
https://doi.org/10.1063/1.1144359
https://doi.org/10.1063/1.1144359
Publikováno v:
Applied Superconductivity. 1:1813-1825
A modular multichannel SQUID-system, in which every single channel can be optimized or replaced individually, is presented. The DC-SQUIDs based on the materials NbN/MgO are prepared by thin film technology and show noise values below 10μΦ0/√Hz. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b09abe722f3eeba1c79bc7ed7c89ece3
https://doi.org/10.1016/0964-1807(93)90330-5
https://doi.org/10.1016/0964-1807(93)90330-5
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:1883-1886
A modular multichannel superconducting quantum interference device (SQUID) system, in which every channel can be optimized or replaced individually, was further improved. The number of channels was increased to 31. The noise level is better than 10 f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96232586a0242c7ff3640dcd41151627
https://doi.org/10.1109/77.233313
https://doi.org/10.1109/77.233313
Publikováno v:
ResearcherID
Currently, linear estimation reconstruction is the only feasible method for extracting information about spatially distributed current sources from measurements of neural magnetic fields. We present the results of a systematic study of the effect of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aed7604a92ae59264487cb1a3425203
https://doi.org/10.1007/bf01129049
https://doi.org/10.1007/bf01129049
Publikováno v:
Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
The nonlinear parameters in the inverse problem of EEG/MEG dipole reconstructions are the dipoles' locations. As soon as the considered data is noisy or more than one current dipole shall be modeled, the choice of a starting value for the minimizing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::766ee92fa5e8c34ef8c51a73e69e7b36
https://doi.org/10.1109/iembs.1996.651988
https://doi.org/10.1109/iembs.1996.651988
Publikováno v:
Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
We analyze the minimum norm solution of the biomagnetic inverse problem. It is shown that the bias of this technique, i.e. the tendency to reconstruct superficial currents, can be reduced by the use of an appropriate weighting, which depends the used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d757374857351b344dc247a8ca99ff
https://doi.org/10.1109/iembs.1996.651989
https://doi.org/10.1109/iembs.1996.651989