Across
- 4. Each exposure is extracted from the IR and given a numerical value
- 5. Selecting this on the workstation is essential for the computer to choose the correct histogram
- 6. What controls image brightness
- 8. Exposure values are grouped into categories
- 11. what is the most common reason for exposure errors
- 13. Used to visualize contrast filled vessels without other anatomy superimposing
- 14. Which type of imaging receptor replies on collimated edges for accurate histogram analysis
- 15. Which type of a-priori histogram analysis takes into account a dense object such as barium
Down
- 1. What controls image contrast
- 2. A post-processing technique that reduces contrast, allowing dense and lucent structures to be visible in the same image
- 3. the range of exposures that are evaluated during histogram analysis
- 7. What is applied to correct the grayscale
- 9. process of assigning a value to a dead pixel based on the recorded values adjacent pixel
- 10. ability to distinguish adjacent details as separate and distinct from each other
- 12. Suppresses high frequency noise by averaging each pixel's frequency with the surrounding pixels
- 13. what can reduce radiologist eye strain