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Semiconductors for Ultrasound Slide 17

Shown on this slide is the ultrasound backend demo which is using the OMAP3530 on a Mistral EVM. This demo applies TI’s standard TI SOC software framework which has been optimized for this demo, and is also now available on the TI GForge website. In the demo, the C64x+ on the OMAP runs the scan converter while the ARM Cortex-A8 runs a Linux stack and takes care of control and display. The B-mode demo takes the pre-scanned converted image of a liver from a 60 mm radius curved array with 10 DSP cycles/pixel, which is approximately 18% of the CPU, and is displayed at 60 frames/second in the top image. The color flow demo uses a linear array scan of carotid artery, the B-mode is followed by color scan conversion since it is necessary to do both in the demo. With twenty DSP cycles/pixel, this consumes approximately 39% of the CPU at 15 fps, and it has been found that to show blood flow it is better to decrease the frames/second. The software framework open source, a whitepaper on the demo, and a video of the demo can be found at the links shown on this slide.

PTM Published on: 2013-04-30