NDLI: Pipelined high precision beamforming delay calculator for ultrasound imaging

Content Provider	IEEE Xplore Digital Library
Author	Zhanxiang Zhao Xi Jin Xin Zhang
Copyright Year	2011
Description	Author affiliation: Department of Physics, University of Science and Technology of China, Hefei, China (Zhanxiang Zhao; Xi Jin) \|\| Wanyi Science and Technology Co. Ltd., Hefei, China (Xin Zhang)
Abstract	Ultrasound Imaging is one of the most widely used medical imaging methods, and beamforming is the enabling technology of ultrasound imaging, which directly influences the image quality. The critical problem of modern ultrasound imaging system is generating high resolution images at high frame rate. To solve this problem, real-time high precision beamforming delay parameters must be generated. This paper presents the design and implementation of a pipelined high precision beamforming delay calculator for ultrasound imaging, which uses 10-stage pipelined CORDIC (Coordinate Rotation Digital Computer) processor to perform fully pipelined architecture. The presented delay calculator calculates delay parameters with high precision, which can greatly improve the image quality. And fully pipelined architecture can also provide high frame rate. The design has been synthesized for an Altera Arria-II GX FPGA with speed grade 4. A delay calculator requires about 3,238 out of 50,600 available ALUTs (6.4%), and a 64-channel dual-beam system needs 24 such delay calculator modules. The delay calculators run in parallel, and one of them can generate 300 million delay parameters per second.
Starting Page	1
Ending Page	4
File Size	497682
Page Count	4
File Format	PDF
ISBN	9781457717413
e-ISBN	9781457717406
DOI	10.1109/FPT.2011.6132718
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-12
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Calculators Ultrasonic imaging Array signal processing Transducers Imaging Field programmable gate arrays delay calculator ultrasound imaging beamforming CORDIC
Content Type	Text
Resource Type	Article

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