Invention Grant
US08545406B2 Dynamic aperture control and normalization for apodization in beamforming
有权
波束形成中的变迹的动态孔径控制和归一化
- Patent Title: Dynamic aperture control and normalization for apodization in beamforming
- Patent Title (中): 波束形成中的变迹的动态孔径控制和归一化
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Application No.: US13305378Application Date: 2011-11-28
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Publication No.: US08545406B2Publication Date: 2013-10-01
- Inventor: David Patrick Magee
- Applicant: David Patrick Magee
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Alan A. R. Cooper; W. James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: A61B8/00
- IPC: A61B8/00

Abstract:
A method of apodizing for ultrasound beamforming includes providing filtered digital channel data representing echo data from target tissue in a plurality (k) of data channels and a predefined number of active channels (Nact). A software-based integrated apodization algorithm dynamically apodizes the digital channel data using a selected apodizing function h[n,k], n being the sample number. The integrated apodization algorithm applies dynamic aperture control to create an effective aperture by generating a parameter numApertureChannels (Nap[n]), where Nap[n]≦Nact, and selecting Nap[n] particular data channels based on a dynamic beam focusing location for beamforming. Applied dynamic data scaling provides data normalization using a vector inner product between h[n,k] and a scale factor to generate normalized apodization factors hnorm [n,k]. The normalized apodization factors are applied to the digital channel data in the Nap[n] particular data channels to generate apodized and normalized digital channel data.
Public/Granted literature
- US20120143059A1 DYNAMIC APERTURE CONTROL AND NORMALIZATION FOR APODIZATION IN BEAMFORMING Public/Granted day:2012-06-07
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