Hello i read this article http://queue.acm.org/detail.cfm?id=2206309
and saw optical flow with OpenCV should be 1.6 times faster on Tegra3 with
neon library.

So i tried an easy example and measured the time it takes to call

goodFeaturesToTrack() and calcOpticalFlowPyrLK()
The result was, with Tegra3 lib (arm/neon) and OpenCV 2.4.2 i'm only 12%
faster.

Can anybody interpret my result? Why is the gain so small?


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postedJan 17, '13 at 5:52a
activeJan 17, '13 at 6:21a
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