发明名称 LOW COMPLEXITY MOTION COMPENSATING BEAMFORMING SYSTEM AND METHOD THEREOF
摘要 A low complexity motion compensating beamforming system utilizes a probe array to fire for beamforming by synthetic apertures. The beamforming range of each firing is a region of interest (ROI), and the common area of adjacent ROI's forms the common ROI. The central image beam of the common ROI is used to generate image beam vectors, in order to analyze the cross-correlation for the corresponding low resolution images (LRI's). The analysis result is used to compute an offset for sequentially compensating and combining the LRI's to form a high resolution image (HRI). The mechanism helps improve the quality of ultrasonic beamforming and the frame rate.
申请公布号 US2014293736(A1) 申请公布日期 2014.10.02
申请号 US201313854098 申请日期 2013.03.31
申请人 NATIONAL TAIWAN UNIVERSITY 发明人 HO Kuan Yu;WU An Yeu;LI Pai Chi;ZHAN Cheng Zhou;CHEN Yu Hao
分类号 G01S7/02;G01S15/02 主分类号 G01S7/02
代理机构 代理人
主权项 1. A low complexity motion compensating beamforming system, comprising: a probe array, which includes I probes and J of the probes to fire for beamforming at the same time, where I and J are positive integers and J<I; an imaging forming module, which controls the probe array to continuously use J different probes in the probe array to fire for beamforming, the beamforming range of each firing is taken as a region of interest (ROI), and the different ROI's are used to generate in sequence first to K-th low resolution images (LRI's), where K is a positive integer; a vector module, which takes in sequence the overlapped region of each two adjacent ROI's as an overlapping ROI, and uses the central image beam of the overlapping ROI to generate at least one image beam vector; a compensating module, which uses a cross-correlation function to analyze the correlation between the LRI's corresponding to the image beam vectors, and uses the analysis result to compensate in sequence the second to K-th LRI's and to generate in sequence first to (K−1)-th low resolution compensating images; and a generating module, which combines the first LRI and the sequentially generated first to (K−1)-th low resolution compensating images to generate a high resolution image (HRI).
地址 Taipei City TW