iPhone 4（S）vs iPad2电脑视觉性能问题 [英] iPhone 4(S) vs iPad2 computer vision performance problems

问题描述

我们有这个项目使用OpenCV，我们开始为iPad2。

We have this project using OpenCV and at first we developed for iPad2.

一切顺利，一个计算机视觉对象识别迭代需要一点点不到1秒。

Everything ran smooth and an computer vision object recognition iteration was taking a little under 1 second.

到目前为止很好。现在我们正在测试的iPhone 4和4S的应用程序。当然，我们做了我们的研究，结果是说，iPhone4S性能几乎与iPad2一样快。

So far so good. Now we are testing the app for iPhone on both 4 and 4S. Of course we did our research as the results were stating the iPhone4S performance was almost as fast as the iPad2.

iPhone 4的结果是可怕的，一次迭代需要15秒。

The results of the iPhone 4 are terrible, one iteration takes 15 seconds. In the iPhone 4S on iteration takes 8 seconds.

所以使用我们的算法：
iPhone4比iPad2慢15倍
iPhone4S是7-8x比iPad2慢

So with our algorithms: iPhone4 is 15x slower than an iPad2 iPhone4S is 7-8x slower than an iPad2

有人知道这是否真的吗？有什么东西，iPhone的做不同于iPad2吗？

Does anybody know if this is true? Is there something the iPhone is doing differently than the iPad2? Isn't the processor of the same type?

任何人都可以指出正确的方向？

Anybody who can point us in the right direction?

推荐答案

类似的处理器，不同的相机。 iPad的相机具有比iPhone的相机更少的MP。在iPhone上，请确保在处理之前将图片缩小到可接受的大小。

Similar processors, different camera's. The iPad's camera has less MP's than the iPhone's one. On the iPhone, make sure you downsize your image to an acceptable size before processing.

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