Multiple moving object single-pixel imaging with a calibrated radon spectrum

The single-pixel imaging (SPI) technique requires multiple samplings during the imaging process, which leads to significant motion blur when capturing moving objects due to the temporal integration of dynamic scenes. This limitation hinders the application of SPI in practical and complex scenarios involving high-speed motion. In existing SPI methods for moving objects, research typically focuses on a single moving object. This work addresses the scenario where two objects with distinct motion trajectories coexist in a scene. First, the mixed radon spectrum of both objects is acquired using SPI. Subsequently, a series of operations-including separation, calibration, and reconstruction-is performed. Finally, blur-free images of the moving objects are obtained. We evaluate the proposed method by testing various scenarios involving images of diverse objects, distinct motion trajectories, and varying velocities. The test results demonstrate the feasibility and robustness of the approach.