Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Montserrat Parrilla Romero"'
Autor:
Óscar Martínez-Graullera, Júlio Cesar Eduardo de Souza, Montserrat Parrilla Romero, Ricardo Tokio Higuti
Publikováno v:
Sensors, Vol 21, Iss 23, p 8018 (2021)
The analysis of the beampattern is the base of sparse arrays design process. However, in the case of bidimensional arrays, this analysis has a high computational cost, turning the design process into a long and complex task. If the imaging system dev
Externí odkaz:
https://doaj.org/article/9f0e12ea8cd14da2a1491e4de06090f0
Autor:
Júlio Cesar Eduardo de Souza, Montserrat Parrilla Romero, Ricardo Tokio Higuti, Óscar Martínez-Graullera
Publikováno v:
Sensors, Vol 21, Iss 23, p 8001 (2021)
This work provides a guide to design ultrasonic synthetic aperture systems for non-grid two-dimensional sparse arrays such as spirals or annular segmented arrays. It presents an algorithm that identifies which elements have a more significant impact
Externí odkaz:
https://doaj.org/article/ba747bbab40249a1b5d1599a70f58338
Autor:
Virginia Yagüe-Jiménez, Alberto Ibáñez Rodríguez, Montserrat Parrilla Romero, Oscar Martínez-Graullera
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 847 (2020)
Current computation capabilities normal, Delay and Sum (DAS) and Total Focusing Method (TFM) allow new definitions for beamformers. In this paper, a new beamforming method is proposed. It exploits diversity across pixel data after focusing process. T
Externí odkaz:
https://doaj.org/article/0066b2c78e0f4adc95a5b0d0e136c3d4
Autor:
Montserrat Parrilla Romero, Alicia Pose-Diez-de-la-Lastra, Alberto Ibáñez Rodríguez, Alba Fernández, Javier Jiménez, Luis Elvira, Quique Bassat, Carmen Duran
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 68:1580-1592
A methodology for the assessment of cell concentration, in the range 5–100 cells/ $\mu \text{L}$ , suitable for in vivo analysis of serous body fluids is presented in this work. This methodology is based on the quantitative analysis of ultrasound i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a36a8d35135204cbc7816c77d5baaad
https://doi.org/10.1109/tuffc.2020.3041495
https://doi.org/10.1109/tuffc.2020.3041495
Autor:
Júlio Cesar Eduardo de Souza, Montserrat Parrilla Romero, Óscar Martínez-Graullera, Ricardo Tokio Higuti
Publikováno v:
Sensors (Basel, Switzerland)
Sensors; Volume 21; Issue 23; Pages: 8018
Sensors, Vol 21, Iss 8018, p 8018 (2021)
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Sensors; Volume 21; Issue 23; Pages: 8018
Sensors, Vol 21, Iss 8018, p 8018 (2021)
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2022-05-01T11:07:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc1ba6233e0a4ddddff336f6adfa6919
https://doi.org/10.3390/s21238018
https://doi.org/10.3390/s21238018
Autor:
Virginia Yagüe-Jiménez, Alberto Ibáñez Rodríguez, Óscar Martínez-Graullera, Montserrat Parrilla Romero
Publikováno v:
2019 IEEE International Ultrasonics Symposium (IUS).
In ultrasound imaging, the delay-and-sum beamforming constitutes a solid measure of the acoustic reflectivity of the scene. If it is applied to synthetic images following the Total Focus Method, it can generate an image with high resolution and contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde7836edf1cb37156795b75c091262a
https://doi.org/10.1109/ultsym.2019.8926260
https://doi.org/10.1109/ultsym.2019.8926260
Autor:
Montserrat Parrilla Romero, Virginia Yagüe-Jiménez, Óscar Martínez-Graullera, Alberto Ibáñez Rodríguez
Publikováno v:
Proceedings of Meetings on Acoustics.
In ultrasonic NDT applications, where the reflections produced by structural elements or defects are high, reflections and diffraction cause artifacts in the images that can make the interpretation of the results very complex. Although the convention
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bfd877b6fd689af52987da8af135e6b
https://doi.org/10.1121/2.0001141
https://doi.org/10.1121/2.0001141
Autor:
Virginia Yagüe-Jiménez, Tomas Gomez Alvarez-Arenas, Adrian Blanco Paetsch, Óscar Martínez-Graullera, Montserrat Parrilla Romero, Alberto Ibáñez Rodríguez
Publikováno v:
Proceedings of Meetings on Acoustics.
Large two-dimensional (2D) arrays offer very promising prospects as analysis tool due to their capability to obtain information of volumetric spaces. However, this kind of development has major drawbacks. The main challenge comes from the large numbe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4011c594bcf34fc1997b7971faaf7b6d
https://doi.org/10.1121/2.0001114
https://doi.org/10.1121/2.0001114
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 65(8)
Using a generic model of how active array imaging systems operate, a formal definition of the image as a projection of the reflected wave field onto the wave field emitted to probe the medium is proposed. This definition is applied to the case of ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7d1cdf334af5c1700f3905f7677ae41
https://pubmed.ncbi.nlm.nih.gov/29994765
https://pubmed.ncbi.nlm.nih.gov/29994765
Autor:
Montserrat Parrilla-Romero, C.J. Martín-Arguedas, David Romero-Laorden, Óscar Martínez-Graullera
Publikováno v:
SAM
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC. Repositorio Institucional del CSIC
instname
Minimum redundancy synthetic aperture solutions (based on the coarray concept) are usually limited by poor signal to noise ratio. The use of pulse coding based on Golay codes can help in order to improve the signal to noise-ratio. Two solutions (2R-S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::158214c7ae5f02831ae44fd9ec2a74f5
http://hdl.handle.net/10261/51428
http://hdl.handle.net/10261/51428
