Imaging sensor system with staggered arrangement of imaging detector subelements, and method for locating a position of a feature in a scene
US7807951B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2004 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Oct 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/7013
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging sensor system includes an optics system that images a point feature of a scene at an image plane with a blur-circle image having a blur diameter, and a detector array at the image plane. Special array patterns and signal detector logic are used to improve the accuracy of the determination of the object location. In one form, the detector array is a one-dimensional detector array comprising a plurality of detector subelements each having a width of from about ½ to about 5 blur diameters, and a length of n blur diameters. Each detector subelement overlaps each of two adjacent detector subelements along their lengths. An overlap of each of the two adjacent detector subelements is m blur diameters, and a center-to-center spacing of each of the two adjacent detector subelements is nO blur diameters. The value of n is equal to about 3m, and the value of m is equal to about nO/2. In another form, the detector is a two-dimensional detector array of detector subelements. The detector subelements are sized and staggered such that an area of the blur-circle image may not simultaneously be split equally among four detector subelements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.