Ptychographic endoscopy, microscopy, metrology, and non-line-of-sight imaging

We present the lensless coded ptychography technology and its applications across microscopy, endoscopy, metrology, and non-line-of-sight imaging. Our technique combines coded detection with ptychographic reconstruction to achieve high-resolution, phase-sensitive imaging without complex lens systems. We demonstrate how this approach enhances microscopy with extended depth of field and enables ultra-thin, flexible imaging probes for endoscopy. In metrology, we showcase sub-micron resolution surface profiling using our portable, handheld device. We also explore the application of our technique in non-line-of-sight imaging, reconstructing scenes hidden from direct view.