M
Martin Christian Hemmsen
Researcher at Technical University of Denmark
Publications - 61
Citations - 579
Martin Christian Hemmsen is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Image quality & Polysomnography. The author has an hindex of 12, co-authored 53 publications receiving 452 citations. Previous affiliations of Martin Christian Hemmsen include University of Copenhagen.
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Journal ArticleDOI
Accurate whole-night sleep monitoring with dry-contact ear-EEG
Kaare B. Mikkelsen,Yousef Rezaei Tabar,Simon L. Kappel,Simon L. Kappel,Christian Bech Christensen,Hans Olaf Toft,Martin Christian Hemmsen,Mike Lind Rank,Marit Otto,Preben Kidmose +9 more
TL;DR: In this article, an extensive study of 80 full night recordings of healthy participants wearing both polysomnography (PSG) equipment and ear-EEG was conducted, achieving an average Cohen's kappa of 0.73.
Proceedings ArticleDOI
An object-oriented multi-threaded software beamformation toolbox
TL;DR: An effective and versatile Matlab toolbox written in C++ has been developed to assist in developing new beam formation strategies and is a general 3D implementation capable of handling a multitude of focusing methods, interpolation schemes, and parametric and dynamic apodization.
Journal ArticleDOI
Implementation of a versatile research data acquisition system using a commercially available medical ultrasound scanner
Martin Christian Hemmsen,Svetoslav Ivanov Nikolov,Mads Møller Pedersen,Michael Johannes Pihl,Marie Sand Enevoldsen,Jens Munk Hansen,Jørgen Arendt Jensen +6 more
TL;DR: The design and implementation of a versatile, open-architecture research data acquisition system using a commercially available medical ultrasound scanner is described to allow researchers and clinicians to rapidly develop applications and move them relatively easy to the clinic.
Journal ArticleDOI
In vivo evaluation of synthetic aperture sequential beamforming.
Martin Christian Hemmsen,Peter Møller Hansen,Theis Lange,Jens Munk Hansen,Kristoffer Lindskov Hansen,Michael Bachmann Nielsen,Jørgen Arendt Jensen +6 more
TL;DR: The study supports that in vivo ultrasound imaging using SASB is feasible for abdominal imaging by showing that image quality was significantly better than conventional imaging.
Proceedings ArticleDOI
Ultrasound image quality assessment: a framework for evaluation of clinical image quality
Martin Christian Hemmsen,Mads Møller Petersen,Svetoslav Ivanov Nikolov,Michael Backmann Nielsen,Jørgen Arendt Jensen +4 more
TL;DR: Equipment and a methodology for clinical image quality evaluation for guiding the development of new and improved imaging and free access to all system parameters enables the ability to capture standardized images as found in the clinic and experimental data from new processing or beamformation methods.