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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Invest Radiol. 2016 Dec;51(12):758–766. doi: 10.1097/RLI.0000000000000310

Figure 1. Schematic diagrams illustrating the image formation of multi-frame compounding with virtual source elements.

Figure 1

A, Divergent waves are transmitted by the virtual source elements sequentially. A given sub-aperture is assigned to each virtual source element. B, Full aperture is assigned for receive from each virtual source element. Coherent compounding of all image frames is performed to form one final image.