ICIP 2006, Atlanta, GA
 

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Paper Detail

Paper:MP-P4.9
Session:Biomedical Image Reconstruction
Time:Monday, October 9, 14:20 - 17:00
Presentation: Poster
Topic: Biomedical Imaging: Super-acoustic imaging
Title: IMPROVING RANGE RESOLUTION IN NEAR-FIELD ULTRASOUND BEAMFORMING
Authors: Wei Huang; University of Virginia 
 Yibin Zheng; University of Virginia 
Abstract: The design of beamformer is a critical component in the development of ultrasound imaging. Conventional delay-and-sum beamformer is intuitive and easy to implement, however the range resolution is limited by the pulse bandwidth. In this paper, we propose a technique that optimizes the reconstruction kernel to approximate an ideal impulse, while also controlling the mainlobe/sidelobe tradeoff. Preliminary simulation has demonstrated that the new method achieves significantly better range resolution than simple delay-and-sum beamformers for medium bandwidth near-field imaging.