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The number of nonzeros in the image blurring matrices and the computation time (in millisecond) of the image blurring operation on the GPU for different image sizes.
| image size | 120 × 120 × 89 | 150 × 150 × 89 | 200 × 200 × 89 | 300 × 300 × 89 |
|---|---|---|---|---|
| # of nonzeros in transaxial blurring matrix | 116,888 | 216,076 | 548,424 | 1,988,372 |
| # of nonzeros in axial blurring matrix | 367 | 351 | 343 | 335 |
| forward blurring (Rx) backward blurring (RTx) |
3.6 ms 3.4 ms |
7.5 ms 7.6 ms |
21 ms 21 ms |
95 ms 95 ms |
