著者

三村 祐輝 阿部 光 齊藤 直 杉本 俊之 高橋 龍尚 柳田 裕隆

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.60, no.1, pp.25-31, 2022-03-10 (Released:2022-05-20)

参考文献数

30

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In ultrasound systems, there is a trade-off between image quality and the number of transducers (elements) placed in the array probe, and to achieve a high resolution, the array probe must be created with additional elements. In 3D/4D echo, a significant number of elements are required compared to 2D echo, because imaging is performed using a two-dimensional array probe. As a result, 3D/4D echo inevitably has the problem of increasing equipment costs. To solve this problem, it is necessary to develop a method to reconstruct images with higher resolution using fewer elements than conventional imaging methods. The L1-norm minimization method has attracted much attention in recent years because of its ability to reconstruct high-resolution images even from incomplete data. In this study, we investigated whether high quality images can be reconstructed by minimizing the L1 norm for an object with an orientation, height, and depth of the imaging area (3D object). We also used image quality evaluation methods (MSE: Mean Squared Error, PSNR: Peak Signal to Noise Ratio, and SSIM: Structural SIMilarity) to quantitatively evaluate the obtained images. The results confirmed that L1-norm minimization is capable of reconstructing high-quality images with high evaluation values in all image quality evaluation methods compared to conventional methods.