Apparatus, method, and computer-readable medium for quad reconstruction using hybrid filter convolution and high dynamic range tone-mapping
US9741104B2 · kind B2 · utility
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Key dates
| Filing date | May 18, 2015 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H30/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for image reconstruction is provided, including processing circuitry to obtain, from a scan of a region of interest of a patient, raw projection data of the region of interest; reconstruct the raw projection data to produce image data; apply high dynamic range tone-mapping to the image data to produce tone-mapped image data by applying window width and window level parameters to the image data to produce adjusted image data, and calculating a contrast adjustment based on both the image data and the adjusted image data; and quantize the tone-mapped image data to produce quantized tone-mapped image data for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.