16. Which of the following can cause image noise? A. signal carriers B. imaging process C. imaging electronics D. all of the above 17. The exact treatment of the image noise is dependent upon which of the following? Page 2 of 21 www.takece.com A. nature of the noise present when the image is recorded B. imaging system C. use of contrast media D. both A and B 18. The X ray quantum noise is frequently referred to as A. detector noise B. white noise C. pixel noise D. none of the above 19. A digital image in modern imaging system is only defined as discrete points in space, called A. sampling points B. vacuum grid points C. air gap points D. none of the above W# N 9 delete W E R O A S D F G H J K retur X C B N M option cmd cmd option