onwaiers

Results 2 issues of onwaiers

![tea_bug](https://user-images.githubusercontent.com/46115485/64499656-8d861400-d2ec-11e9-9def-77b9e3d2c350.gif)

## 版本说明 * ubuntu 16.04 * PCL 1.9.0 * VTK 8.1.0 * rosdistro kinetic * rosversion 1.12.17 ## 问题1 error: reference to ‘detail’ is ambiguous 参考[资料](https://github.com/opencv/opencv/issues/6661), 问题出现的原因是代码中使用了`using namespace cv;` *...