title: [Digital scanning converter for medical endoscopic ultrasound imaging].
abstract: This paper mainly introduces the design of digital scanning converter (DSC) for medical endoscopic ultrasound imaging. Fast modified vector totational CORDIC (FMVR-CORDIC) arithmetic complete coordinate conversion is used to increase the speed of ultrasonic scanning imaging. FPGA is used as the kernel module to control data transferring, related circuits and relevant chips' working, and to accomplish data preprocessing. With the advantages of simple structure, nice flexibility and convenience, it satisfies the demand for real-time displaying in this system. Finally, the original polar coordinate image is transformed to rectangular coordinate grey image through coordinate transformation. The system performances have been validated by the experimental result.
authors.affiliation: College of Precision Instrument & Opto-electronic Engineering, Tianjin University, Key Laboratory of Opto-electronics Information and Technical Science (Tianjin University), Ministry of Education, Tianjin 300072, China. xdchen@tju.edu.cn
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Chen
authors.forename: Hongxu
authors.initials: H
authors.lastname: Zhang
authors.forename: Peifan
authors.initials: P
authors.lastname: Zhou
authors.forename: Shijie
authors.initials: S
authors.lastname: Wen
authors.forename: Daoyin
authors.initials: D
authors.lastname: Yu