Imaging Systems and Applications: introduction to the feature issue

Imaging systems have numerous applications in industrial, military, consumer, and medical settings. Assembling a complete imaging system requires the integration of optics, sensing, image processing, and display rendering. This issue features original research covering several aspects of imaging systems ranging from microscopic to radar imaging scale. Various applications include pulsed thermographic imaging for underdrawing visualization in paintings, image spectral classification using a single pixel camera, and an improved algorithm for millimeter-wave near-field one-side stationary bistatic synthetic aperture radar. Other applications include a cost-effective device capable of quantitative measurement of the embryo and endosperm areas of brown rice and resolution improvement of a microsphere-assisted microscope with arrays of plasmonic structures. (C) 2022 Optica Publishing Group