2023/08/28 by Chung-Shiang Mei, Mei, Chung-Shiang, Menglin Li +1
Computer Science · Engineering · #FOS: Electrical engineering #Microwave Imaging and Scattering Analysis #Signal Processing (eess.SP) #Speech and Audio Processing #Ultrasonics and Acoustic Wave Propagation #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2308.14451
openalex publication_date 2023/08/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Among various choices of 2-D ultrasound transducer arrays, the row-column-addressed (RCA) 2-D array has shown its promise for 3-D imaging. However, RCA suffers from notable edge effects and thus receives ghost echoes, which result in ghost artifacts showing in the volumetric image. In this research, rather than discarding these ghost echoes, we consider them as supportive signals and incorporate them into a postfiltering-based method to enhance the RCA imaging quality. Field II simulation and results of a single scatterer are presented in this work. The strongest ghost artifact is suppressed by 23 dB and the -6 dB lateral resolution is improved from 1.06 to 0.81 mm. The proposed method shows promising results in suppressing ghost artifacts and enhancing lateral resolution.