Real-time ultrasound scan conversion
US5528302A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scan conversion method is implemented to achieve real-time scan conversion at video rates. Scan conversion tasks include vector point identification processing, distance derivation processing and interpolation processing. An active image area is defined in response to user inputs. For a given set of user adjustments there is a fixed active image area of the display screen. In addition, there is a fixed positional relationship between output pixel locations of the active image and corresponding input vector points of the active image. Whenever the user makes adjustments, these relationships change becoming fixed again until another user-initiated change. Whenever the relationships change, vector identification processing and distance derivation processing is re-done to define these relationships. Interpolation processing is performed each frame only for output pixels within the active image area. The active image area is divided into groups of output pixels. For a given group of output pixels, a parallel processor receives the pre-computed data and input vector data. The parallel processor then interpolates the vector data samples for each output pixel in the group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.