Sidelobe reduction for plane wave compounding with a limited frame number
نویسندگان
چکیده
منابع مشابه
A Sibelobe Suppressing Beamformer for Coherent Plane Wave Compounding
Contrast degradation is a critical problem in ultrasound plane wave imaging (PWI) resulting from signals leakage from the sidelobes. An ideal sidelobe reduction method may enhance the contrast without remarkably increasing computational load. To this end, we introduce a new singular value decomposition (SVD) sidelobe reduction beamformer for coherent plane wave compounding (CPWC) based on a pre...
متن کاملSidelobe reduction of limited diffraction beams with Chebyshev aperture apodization
A limited diffraction beams ~LDB! imaging system with Chebyshev weighting is presented. The objective of the paper is to reduce the sidelobes of the LDB without impacting on main-lobe performance and increase the contrast-resolution of the imaging system. The Chebyshev weighting is applied to the LDB and an analytic description and the simulation results are obtained. Theoretical analysis and s...
متن کاملSidelobe Reduction of Images with Coded Limited Diffraction Beams
Limited diffractlon beams were first described by Stratton [l] and then produced experimentally by Dumin in optics [2]. Bessel beams [1,2], X waves [3,4], and bowtie beams [5] are just a few examples of the limited diffract~on beams. Theoretically, these beams have an infinite depth of field, i.e., they can propagate to Infinite dlstance without spreading. In practice, when produced with a fini...
متن کاملUltrafast vascular strain compounding using plane wave transmission.
Deformations of the atherosclerotic vascular wall induced by the pulsating blood can be estimated using ultrasound strain imaging. Because these deformations indirectly provide information on mechanical plaque composition, strain imaging is a promising technique for differentiating between stable and vulnerable atherosclerotic plaques. This paper first explains 1-D radial strain estimation as a...
متن کاملFree Vibration of a Generalized Plane Frame
This article deals with the free in-plane vibration analysis of a frame with four arbitrary inclined members by differential transform method. Based on four differential equations and sixteen boundary and compatibility conditions, the related structural eigenvalue problem will be analytically formulated. The frequency parameters and mode shapes of the frame will be calculated for various values...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BioMedical Engineering OnLine
سال: 2018
ISSN: 1475-925X
DOI: 10.1186/s12938-018-0525-1