Digital X-ray imaging system with automatic display image greyscale enhancement and method
US6292535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Digital X-ray imaging system 10 automatically provides an enhanced digital display image 10D from a digital camera image 10C showing internal structure 10S of interest within subject 11S. Calibrated radiation attenuators 10A placed near the subject appear in the camera image and in the display image. X-ray source 10X generates X-ray radiations which are attenuated within the calibrated attenuators to provide calibrated attenuations. The X-ray radiations are also differentially attenuated within the interior of the subject to reveal internal structure therein. Digital X-ray camera 11C detects the calibrated radiations to form the camera image of the calibrated greyscale levels. The camera also detects the differentially attenuated radiations to provide the camera image of internal structure of the subject. Each calibrated attenuator appears in the camera image as a collection of adjacent camera pixels exhibiting one of the plurality of calibrated greyscale levels within the camera greyscale. Retriever 12 retrieves the calibrated greyscale level from the digital camera image of each attenuator pixel collection. Greyscale coordinator 14 is responsive to the retrieved calibrated greysc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.