Title :
Observation of dynamic structure using high-speed ultrasound 3D imaging system
Author :
Miura, Masashi ; Tamura, Yasutaka ; Yanagida, Hirotaka ; Ishihara, Chiaki ; Okada, Nagaya ; Ishigami, Satoshi ; Muramatsu, Takatoshi
Author_Institution :
Yamagata Univ., Yonezawa, Japan
Abstract :
An experimental ultrasonic three-dimensional (3D) imaging system for high-speed data acquisition has been developed. A sequence of 3D images of moving objects is reconstructed for each transmission of pulses modulated by Walsh functions. Then, the dynamic structure of the objects is extracted from the image sequence. In this paper, we discuss a motion-compensated image reconstruction method for improving the quality of the image sequence. The computer simulation for the motion compensation image reconstruction was carried out. In the experiment of dynamic imaging using the developed system, an improvement in contrast was obtained by the motion compensation with the Doppler shift detection method.
Keywords :
Doppler shift; Walsh functions; data acquisition; digital simulation; image reconstruction; image sequences; imaging; motion compensation; ultrasonic imaging; 3D imaging system; Doppler shift detection; Walsh functions; computer simulation; data acquisition; dynamic structure; high-speed ultrasound; image quality; image reconstruction; image sequence; modulated pulses; motion-compensated image; moving objects; ultrasonic imaging system; Computer simulation; Data acquisition; Data mining; Doppler shift; Image reconstruction; Image sequences; Motion compensation; Motion detection; Pulse modulation; Ultrasonic imaging;
Conference_Titel :
Ultrasonics, 2003 IEEE Symposium on
Print_ISBN :
0-7803-7922-5
DOI :
10.1109/ULTSYM.2003.1293279
