Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Tor A. Ramstad"'
Autor:
Pal Anders Floor, Raul Chavez-Santiago, Anna N. Kim, Kimmo Kansanen, Tor A. Ramstad, Ilangko Balasingham
Publikováno v:
IEEE Access, Vol 7, Pp 29425-29440 (2019)
A wireless capsule endoscopy (WCE) is a good option for the screening of the digestive system. To better facilitate detection of diseases at an early stage, gastroenterologists seek both higher frame rate and frame resolution than what is offered in
Externí odkaz:
https://doaj.org/article/283a7e7ef161487bada07d4666868f63
Publikováno v:
Entropy, Vol 15, Iss 6, Pp 2129-2161 (2013)
Communication of a multivariate Gaussian source transmitted over orthogonal additive white Gaussian noise channels using delay-free joint source channel codes (JSCC) is studied in this paper. Two scenarios are considered: (1) all components of the mu
Externí odkaz:
https://doaj.org/article/88b33003c24d4a3b89772eb6990be438
Autor:
Tor A. Ramstad, Ilangko Balasingham
Publikováno v:
EURASIP Journal on Image and Video Processing, Vol 2008 (2008)
Maximum regular wavelet filter banks have received much attention in the literature, and it is a general conception that they enjoy some type of optimality for image coding purposes. To investigate this claim, this article focuses on one particular b
Externí odkaz:
https://doaj.org/article/aa1834f7dbd541fba19a731af1d0f005
Autor:
Raul Chavez-Santiago, Ilangko Balasingham, Anna N. Kim, Pal Anders Floor, Tor A. Ramstad, Kimmo Kansanen
Publikováno v:
29425-29440
IEEE Access
IEEE Access, Vol 7, Pp 29425-29440 (2019)
IEEE Access
IEEE Access, Vol 7, Pp 29425-29440 (2019)
A wireless capsule endoscopy (WCE) is a good option for the screening of the digestive system. To better facilitate detection of diseases at an early stage, gastroenterologists seek both higher frame rate and frame resolution than what is offered in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af4cc3a48067b75edd24dbc0b16eec79
https://doi.org/10.1109/access.2019.2902104
https://doi.org/10.1109/access.2019.2902104
Publikováno v:
25336-25350
IEEE Access, Vol 6, Pp 25336-25350 (2018)
IEEE Access
IEEE Access, Vol 6, Pp 25336-25350 (2018)
IEEE Access
Independent component analysis separates latent sources from a linear mixture by assuming sources are statistically independent. In real world applications, hidden sources are usually non-Gaussian and have dependence among samples. In such case, both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a585294c75c896622d0d98e54facf826
http://hdl.handle.net/11250/2585315
http://hdl.handle.net/11250/2585315
Autor:
Tor A. Ramstad, Anna N. Kim, Niklas Wernersson, Ilangko Balasingham, Mikael Skoglund, Pal Anders Floor
Publikováno v:
IEEE Transactions on Communications. 63:1824-1836
In this paper, nonlinear distributed joint source-channel coding (JSCC) schemes for transmission of multivariate Gaussian sources over a Gaussian multiple access channel are proposed and analyzed. The main contribution is a zero-delay JSCC named Dist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73936f3532c8eaa15f5dd9241702f341
https://doi.org/10.1109/tcomm.2015.2410774
https://doi.org/10.1109/tcomm.2015.2410774
Autor:
Sverre Brovoll, Jacob Bergsland, Per Steinar Halvorsen, Tor A. Ramstad, Ole-Johannes Grymyr, Ilangko Balasingham, Pal Anders Floor, Øyvind Aardal, Dirk Plettemeier, Svein-Erik Hamran, Raul Chavez-Santiago, Rafael Palomar
Publikováno v:
IEEE Journal of Biomedical and Health Informatics
Ultra wideband (UWB) radio technology for wireless implants has gained significant attention. UWB enables the fabrication of faster and smaller transceivers with ultra low power consumption, which may be integrated into more sophisticated implantable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49aa20ffe7b25fb6feb0a302d4c7d3c
https://doi.org/10.1109/jbhi.2015.2417805
https://doi.org/10.1109/jbhi.2015.2417805
Publikováno v:
EMBC
In this paper, we propose a new feature for finding lesions in gastrointestinal tissues. Polyps or cancerous parts have different capillary pattern compared with normal parts. There are polyps which have higher density of vessel or capillary pattern.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d53b924c8fdf00de3c71cc6f4280e6b9
https://pubmed.ncbi.nlm.nih.gov/28268318
https://pubmed.ncbi.nlm.nih.gov/28268318
Publikováno v:
PIMRC
In this paper, a robust and power-efficient transmission scheme of a time-discrete signal with continuous amplitude over parallel fading channels is proposed. A block of source samples is decomposed into N layers, so-called layered source coder. Each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6486a5f30d86517ad73cee12d75ad67
https://doi.org/10.1109/pimrc.2016.7794695
https://doi.org/10.1109/pimrc.2016.7794695
Publikováno v:
EMBC
In this paper, we propose an algorithm to extract heart rate frequency from video camera using the Multiple SIgnal Classification (MUSIC) algorithm. This leads to improved accuracy of the estimated heart rate frequency in cases the performance is lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7476145b12ccdfc00660d64ebb1c57d7
https://pubmed.ncbi.nlm.nih.gov/26738015
https://pubmed.ncbi.nlm.nih.gov/26738015