Abstract
Although high-resolution single-pixel imaging (SPI) can be achieved by under-sampling, low sampling ratio (SR) strategies often result in a loss of image details and lower image quality. Due to the limited memory of the spatial light modulator (SLM) and the time necessary to load such vast numbers of patterns, high-resolution SPI at high sampling rates has not yet been realized. In this work, we propose a one-dimensional single-pixel imaging (1D-SPI) technique to reconstruct high-quality images that can even surpass the full resolution of the SLM at 100% sampling ratio with extremely low data throughput. Only nearly one-thousandth as many modulation patterns as traditional 2D modulation methods are required, which significantly reduces the demand for massive memory capacity and the time to load these patterns. A 1540×1024 resolution SPI image is successfully demonstrated experimentally, indicating its tremendous promise in applications such as industrial inspection and satellite remote sensing.
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