Super resolution imaging system
US4716414A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1985 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Apr 30, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/0209
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A super resolution imaging system employing coherent radiation comprises transmitting, receiving and processing means to provide complex amplitude image data. The image data is processed by a weight function generator to provide a weight function. The weight function has values at individual image pixels consisting of a background or clutter intensity term added to a pixel intensity dependent term. The latter term is non-zero for pixel intensities exceeding a threshold level well above background. A computer generates singular functions from the weight function and system impulse response, and employs the singular functions to decompose the image data and subsequent object reconstruction. This provides enhanced resolution compared to that available from the image data alone. An iteration controller employs the reconstructed object data to iterate resolution enhancement until no significant improvement is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.