Compressive passive millimeter wave imaging with extended depth of field

作者：Patel Vishal M^*; Mait Joseph N

来源：Optical Engineering, 2012, 51(9): 091610.

DOI：10.1117/1.OE.51.9.091610

• computational imaging
• millimeter wave imaging
• extended depth-of-field
• image reconstruction
• sparsity

We introduce a millimeter wave imaging modality with extended depth-of-field that provides diffraction-limited images with reduced-spatial sampling. The technique uses a cubic phase element in the pupil of the system and a nonlinear recovery algorithm to produce images that are insensitive to object distance. We present experimental results that validate system performance and demonstrate a greater than four-fold increase in depth-of-field with a reduction in sampling requirements by a factor of at least two.

• 出版日期2012-9