• Publications
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Low-cost multispectral imaging for remote sensing of lettuce health
We present the development of a simple low-cost imaging system for remote sensing of crop health and demonstrate it on lettuce (Lactuca sativa) grown in Hong Kong. Expand
  • 11
Accelerated Wirtinger Flow for Multiplexed Fourier Ptychographic Microscopy
Fourier ptychographic microscopy enables gigapixel-scale imaging, with both large field-of-view and high resolution. Expand
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Multi-layer Born scattering: an efficient model for 3D phase tomography with multiple scattering objects (Conference Presentation)
3D quantitative phase (refractive index) microscopy reveals volumetric structure of biological specimens. Optical diffraction tomography (ODT) is a common technique for 3D phase imaging. By angularlyExpand
  • 1
Total-variation regularized Fourier ptychographic microscopy with multiplexed coded illumination
We propose an iterative Total-variation (TV) regularized reconstruction method for inverse problem of Fourier Ptychography with coded illumination. Our simulated and experimental results demonstrateExpand
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An Act for the Relief of Miyako Ueda Osgood
  • D. Ren
  • Engineering
  • 10 November 2010
Dynamics of Axisymmetrically Excited Transverse Jets
Tomographic reconstruction of atmospheric density with Mumford-Shah functionals
We present a new means of reconstructing the geocoronal H density field through a tomographic image formation problem based on the framework originally proposed by Mumford & Shah. Expand
Nondestructive, high-resolution, chemically specific 3D nanostructure characterization using phase-sensitive EUV imaging reflectometry
A new imaging technique enables nondestructive, 3D characterization of nanostructures, their composition, and interfaces. Next-generation nano- and quantum devices have increasingly complex 3DExpand
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