AI Article Synopsis
- A new low-profile aperture for microwave imaging has been created using metamaterials and compressive imaging, eliminating the need for traditional components like lenses and moving parts.
- This technology allows for image compression at the hardware level, reducing the costs related to data detection, storage, and transmission compared to standard methods that require full sampling.
- The system can capture and reconstruct images at a rate of 10 frames per second, achieving a high compression ratio of 40:1 while working in K-band frequencies without mechanical scanning.
Article Abstract
By leveraging metamaterials and compressive imaging, a low-profile aperture capable of microwave imaging without lenses, moving parts, or phase shifters is demonstrated. This designer aperture allows image compression to be performed on the physical hardware layer rather than in the postprocessing stage, thus averting the detector, storage, and transmission costs associated with full diffraction-limited sampling of a scene. A guided-wave metamaterial aperture is used to perform compressive image reconstruction at 10 frames per second of two-dimensional (range and angle) sparse still and video scenes at K-band (18 to 26 gigahertz) frequencies, using frequency diversity to avoid mechanical scanning. Image acquisition is accomplished with a 40:1 compression ratio.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.1230054 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!