| 基于USB2.0的医用内窥镜超声探头旋转扫描成像系统 |
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| 引用本文： | 陈晓冬,温世杰,郁道银.基于USB2.0的医用内窥镜超声探头旋转扫描成像系统[J].生物医学工程学杂志,2008,25(5). |
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| 作者姓名： | 陈晓冬 温世杰 郁道银 |
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| 作者单位： | 天津大学,精密仪器与光电子工程学院,教育部光电信息技术科学重点实验室,天津,300072 |
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| 基金项目： | 教育部重点资助项目:医用超声内窥镜关键技术及数字化研究(106048) |
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| 摘 要： | 介绍基于USB2．0接口的医用超声内窥镜旋转扫描成像的设计与实现。根据超声成像的特点，本系统采取脉冲回波成像方式，文中介绍了超声波激发、接收电路以及收发隔离电路。针对旋转扫描的特点，设计了基于FPGA的同步控制电路和基于USB2．0接口的数据传输电路。对采集到的原始图像，进行坐标变换，获得了按直角坐标显示的灰度图像。利用连续旋转马达对实际物体扫描成像的实验结果，验证了系统的正确性。
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| 关 键 词： | 医用超声内窥镜 超声探头 超声扫描成像 USB 2．0接口 坐标变换 |
Revolving Ultrasonic Probe for Medical Endoscope Imaging System Based on USB2.0 |
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| Chen Xiaodong,Wen Shijie,Yu Daoyin.Revolving Ultrasonic Probe for Medical Endoscope Imaging System Based on USB2.0[J].Journal of Biomedical Engineering,2008,25(5). |
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| Authors: | Chen Xiaodong Wen Shijie Yu Daoyin |
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| Institution: | College of Precision Instrument & Opto-electronic Engineering;Tianjin University;Opto-electronic Information Science and Technology Laboratory;Ministry of Education;Tianjin 300072;China |
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| Abstract: | This paper mainly introduces the design and implementation of rotary scanning imaging for Endoscopic Ultrasonography System based on USB2.0. The ultrasonic pulse-echo imaging technique has been used. In the paper, we simply introduce the emission circuit, receiving circuit and isolation circuit. According to the character of rotary scanning, we design the synchronous control circuit based on FPGA and data transmission circuit based on USB2.0. Finally the original polar coordinate image is transformed to rec... |
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| Keywords: | Medical ultrasonic endoscope Ultrasonic probe Ultrasonic scanning imaging USB2 0 interface Coordinate conversion |
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