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. 2009 Jul 14;2:11. doi: 10.3389/neuro.16.011.2009

Figure 4.

Figure 4

Two possible data transfer paths. (A) Following the spatial filter, data is transferred to the CPU before being transferred back to the GPU for the power estimate. This incurs an additional overhead that can contribute significantly to the overall processing time. (B) The data remains on the video card after spatial filtering for the power estimation routine.