Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Udomchai Techavipoo"'
Autor:
Prachaya Khomduean, Pongpat Phuaudomcharoen, Totsaporn Boonchu, Unchalisa Taetragool, Kamonwan Chamchoy, Nat Wimolsiri, Tanadul Jarrusrojwuttikul, Ammarut Chuajak, Udomchai Techavipoo, Numfon Tweeatsani
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract To precisely determine the severity of COVID-19-related pneumonia, computed tomography (CT) is an imaging modality beneficial for patient monitoring and therapy planning. Thus, we aimed to develop a deep learning-based image segmentation mod
Externí odkaz:
https://doaj.org/article/2e2ce71e7a31487da34b4ff188a614c8
Autor:
Udomchai Techavipoo, Denchai Worasawate, Wittawat Boonleelakul, Rachaporn Keinprasit, Treepop Sunpetchniyom, Nobuhiko Sugino, Pairash Thajchayapong
Publikováno v:
Sensors, Vol 16, Iss 12, p 1986 (2016)
An ultrasound image is reconstructed from echo signals received by array elements of a transducer. The time of flight of the echo depends on the distance between the focus to the array elements. The received echo signals have to be delayed to make th
Externí odkaz:
https://doaj.org/article/d9db384b655f45468724b82ac0b2c297
Autor:
Tanapon Srivongsa, Pairash Thajchayapong, Saowapak S. Thongvigitmanee, Udomchai Techavipoo, Walita Narkbuakaew, Sakunrat Prompalit, Nattawut Sinsuebphon, Atthasak Kiang-ia, Utairat Chaumrattanakul
Publikováno v:
BioMed Research International, Vol 2021 (2021)
BioMed Research International
BioMed Research International
Background. The National Science and Technology Development Agency (NSTDA) in Thailand researched and prototyped digital radiography systems under the brand name BodiiRay aiming for sustainable development and affordability of medical imaging technol
Autor:
Sakunrat Prompalit, Nattawut Sinsuebphon, Udomchai Techavipoo, Saowapak S. Thongvigitmanee, Kitti Koonsanit
Publikováno v:
EMBC
Digital radiography has been increasingly adopted since it can provide better image quality compared to conventional screen/film method. However, digital radiography can sometimes produce low-quality images because its processing algorithm is unaware
Autor:
Udomchai Techavipoo, Sarun Angamnuaysiri, Pairash Thajchayapong, R. Keinprasit, Warakorn Khamkaew, Denchai Worasawate, Prachumpong Dangsakul
Publikováno v:
2018 11th Biomedical Engineering International Conference (BMEiCON).
Ultrasound images contains speckles that could be considered as salt-and-pepper noise. Median filtering can efficiently remove the noise without blurring the edges. However, median filtering is computationally intensive and not suitable for real-time
Autor:
Nobuhiko Sugino, Udomchai Techavipoo, Pairash Thajchayapong, R. Keinprasit, Denchai Worasawate, Treepop Sunpetchniyom, Wittawat Boonleelakul
Publikováno v:
Sensors (Basel, Switzerland)
Sensors; Volume 16; Issue 12; Pages: 1986
Sensors, Vol 16, Iss 12, p 1986 (2016)
Sensors; Volume 16; Issue 12; Pages: 1986
Sensors, Vol 16, Iss 12, p 1986 (2016)
An ultrasound image is reconstructed from echo signals received by array elements of a transducer. The time of flight of the echo depends on the distance between the focus to the array elements. The received echo signals have to be delayed to make th
Autor:
Treepop Sunpetchniyom, Denchai Worasawate, Pairash Thajchayapong, R. Keinprasit, Nobuhiko Sugino, Wittawat Boonleelakul, Udomchai Techavipoo
Publikováno v:
2016 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON).
In digital beamforming for creating ultrasound images, the digitized echo signals received by transducer elements have to be delayed to make their wave fronts and phases equal before summing these signals for a desired focus. In general, the delay va
Publikováno v:
2015 8th Biomedical Engineering International Conference (BMEiCON).
An algorithm to reduce computational time for pseudo-dynamic receive beamforming using FPGA is presented. This includes a method to store and retrieve the predetermined delays and other parameters. In addition, we present a simplified implementation
Publikováno v:
Magnetic Resonance Imaging. 27:1281-1292
Diffusion tensor imaging requires correction of eddy current distortion in diffusion-weighted images. An effective retrospective correction approach is to transform a diffusion-weighted image to maximize the mutual information (MI) between the transf
Publikováno v:
Magnetic Resonance in Medicine. 61:650-658
A phase labeling using sensitivity encoding system and method for correcting geometric distortion caused by magnetic field inhomogeneity in echo planar imaging (EPI) uses local phase shifts derived directly from the EPI measurement itself, without th