Hardware interpolator for display raster expansion
From 3rd symposium on sharing of computer programs and technology in nuclear medicine; Miami, Florida, USA (16 Jun 1973). In proceedings of third symposium on sharing of computer programs and technology in nuclear medicine. A hardware raster expander has been constructed that allows radioisotope scans collected and processed on a 64 x 64 point grid to be displayed on a 128 x 128 point grid with the intensity interpolation being performed external to the computer. This results in a savings of a factor of four in the amount of storage needed for the refreshed display. The display raster is expanded because it improves the image display quality. The average of the intensity values of the near neighbor points is calculated from the 64 x 64 grid and inserted between points to expand the raster. The technique is not limited by the size of the grid and can be used with core or disk refreshed displays. (auth)
- Research Organization:
- Massachusetts General Hospital, Boston; comps.; Oak Ridge National Lab., Tenn. (USA)
- NSA Number:
- NSA-29-008127
- OSTI ID:
- 4412425
- Report Number(s):
- CONF-730627--
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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