Digital scanning converter for medical endoscopic ultrasound imaging.
- Author:
Xiaodong CHEN
1
;
Hongxu ZHANG
;
Peifan ZHOU
;
Shijie WEN
;
Daoyin YU
Author Information
1. 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
- Publication Type:Journal Article
- MeSH:
Algorithms;
Analog-Digital Conversion;
Capsule Endoscopes;
Endoscopy, Gastrointestinal;
methods;
Equipment Design;
Humans;
Signal Processing, Computer-Assisted;
instrumentation;
Ultrasonography;
instrumentation;
methods
- From:
Journal of Biomedical Engineering
2009;26(1):18-21
- CountryChina
- Language:Chinese
-
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.
