title: [RovoIving ultrasonic probe for medical endoscope imaging system based on USB2.0].
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 rectangular coordinate grey image through coordinate transformation. The system performances have been validated by the experimental result gotten by scanning a specific object with continuous rotary motor.
authors.affiliation: College of Precision Instrument & Opto-electronic Engineering, Tianjin University, Opto-electronic Information Science and Technology Laboratory, Ministry of Education, Tianjin 300072, China. xdchen@tju.edu.cn
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Chen
authors.forename: Shijie
authors.initials: S
authors.lastname: Wen
authors.forename: Daoyin
authors.initials: D
authors.lastname: Yu
mesh_terms: D053705:Capsule Endoscopes; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D014463:Ultrasonography / Q000295:instrumentation* / Q000379:methods