High-contrast and low-computational complexity medical ultrasound imaging using beamspace capon method. - Shigeaki Okumura; Hirofumi Taki; Toru Sato (EMBC, 2015)

Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. - Shigeaki Okumura; Hirofumi Taki; Toru Sato (ICASSP, 2015)

Remote heartbeat monitoring from human soles using 60-GHz ultra-wideband radar. - Takuya Sakamoto; Shigeaki Okumura; Ryosuke Imanishi; Hirofumi Taki; Toru Sato; Mototaka Yoshioka; Kenichi Inoue; Takeshi Fukuda; Hiroyuki Sakai 001 (IEICE Electron. Express, 2015)

Noncontact respiration monitoring of multiple closely positioned patients using ultra-wideband array radar with adaptive beamforming technique. - Masashi Muragaki; Shigeaki Okumura; Katsutoshi Maehara; Takuya Sakamoto; Mototaka Yoshioka; Kenichi Inoue; Takeshi Fukuda; Hiroyuki Sakai 001; Toru Sato (ICASSP, 2017)

Ultrawideband Radar Imaging Using Adaptive Array and Doppler Separation. - Motoshi Anabuki; Shigeaki Okumura; Toru Sato; Takuya Sakamoto; Kenshi Saho; Mototaka Yoshioka; Kenichi Inoue; Takeshi Fukuda; Hiroyuki Sakai 001 (IEEE Trans. Aerosp. Electron. Syst., 2017)

Noninvasive aspiration detection using through-transmission ultrasound. - Yosuke Hara; Yukio Katori; Shigeaki Okumura; Hirofumi Taki; Hiroki Umeda; Tatsuya Uechi; Fumihiko Kawamura; Yoichi Haga; Ryoichi Nagatomi; Shin-Ichi Izumi (HealthCom, 2018)

Noncontact Measurement of the Instantaneous Heart Rate in a Multi-Person Scenario Using X-Band Array Radar and Adaptive Array Processing. - Takuya Sakamoto; Pascal Aubry; Shigeaki Okumura; Hirofumi Taki; Toru Sato; Alexander G. Yarovoy (IEEE J. Emerg. Sel. Topics Circuits Syst., 2018)

Noncontact Respiratory Measurement for Multiple People at Arbitrary Locations Using Array Radar and Respiratory-Space Clustering. - Takato Koda; Takuya Sakamoto; Shigeaki Okumura; Hirofumi Taki (IEEE Access, 2021)