Osicheva Alexandra, Sych Denis
Terra Quantum AG, Kornhausstrasse 25, 9000 St. Gallen, Switzerland.
Sensors (Basel). 2024 Jul 19;24(14):4689. doi: 10.3390/s24144689.
Single-pixel imaging (SPI) is an alternative method for obtaining images using a single photodetector, which has numerous advantages over the traditional matrix-based approach. However, most experimental SPI realizations provide relatively low resolution compared to matrix-based imaging systems. Here, we show a simple yet effective experimental method to scale up the resolution of SPI. Our imaging system utilizes patterns based on Hadamard matrices, which, when reshaped to a variable aspect ratio, allow us to improve resolution along one of the axes, while sweeping of patterns improves resolution along the second axis. This work paves the way towards novel imaging systems that retain the advantages of SPI and obtain resolution comparable to matrix-based systems.
单像素成像（SPI）是一种使用单个光电探测器获取图像的替代方法，与传统的基于矩阵的方法相比具有许多优势。然而，与基于矩阵的成像系统相比，大多数实验性的SPI实现提供的分辨率相对较低。在这里，我们展示了一种简单而有效的实验方法来提高SPI的分辨率。我们的成像系统利用基于哈达玛矩阵的图案，当将其重塑为可变长宽比时，使我们能够沿其中一个轴提高分辨率，而图案的扫描则沿第二个轴提高分辨率。这项工作为新型成像系统铺平了道路，这些系统保留了SPI的优势并获得了与基于矩阵的系统相当的分辨率。
