Software-based Ultrasound Beamforming on Multi-core DSPs
نویسندگان
چکیده
Ultrasound imaging is an important diagnostic tool in clinical medicine. It displays images in real time and is considered safe, noninvasive and less costly than other cross-sectional imaging modalities, e.g., X-ray CT, MRI and PET. In modern ultrasound machines, digital beamforming (focusing) is widely used. It is essential for attaining good image quality by increasing signal-tonoise ratio (SNR), improving spatial resolution and reducing sidelobe artifacts [1].
منابع مشابه
A Reconfigurable Audio Beamforming Multi-Core Processor
Over the last years, the Beamforming technique has been adopted by the audio engineering society to amplify the signal of an acoustic source, while attenuating any ambient noise. Existing software implementations provide a flexible customizing environment, however they introduce performance limitations and excessive power consumption overheads. On the other hand, hardware approaches achieve sig...
متن کاملAdaptive beamforming in row-column addressed arrays for 3D ultrasound imaging
In recent years, to reduce the complexity of implementation, the use of 2D arrays with restricted row-column addressing has been considered for 3D ultrasound imaging. In this paper, two methods of adaptive beamforming based on the minimum variance method are represented in such a way that the computational load is much less than using the full adaptive beamforming method. In both proposed metho...
متن کاملReal-Time Ultrasound Elastography on a Multi-core DSP
Ultrasound (US) elastography measures the deformation of tissue in response to applied force to derive and display its stiffness. It has been applied to various organs and tissues, e.g., as an adjunct tool to conventional US and X-ray mammography in the detection and characterization of breast masses. Real-time US elastography processing is demanding due to several computationally-expensive mod...
متن کاملFPGAs and DSPs for Sonar Processing — Inner Loop Computations
In this paper we evaluate FPGA technology for use in sonar processing, specifically, time-delay, frequencydomain, and matched-field beamforming algorithms. We compare our results with those obtained using DSPs to highlight a number of FPGA features which make them attractive for signal processing. First, the CORDIC algorithm maps well onto FPGAs, in our case allowing complex arithmetic to be do...
متن کاملFPGA-Based 16-Channel Digital Ultrasound Receive Beamformer
Ultrasound imaging is an efficient, noninvasive, method for medical diagnosis. A commonly used approach to image acquisition in ultrasound system is digital beamforming. Digital beamforming, as applied to the medical ultrasound, is defined as phase alignment and summation of signals that are generated from a common source, by received at different times by a multi-elements ultrasound transducer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011