指向指针或引用的迭代器-错误

//function definition
//Point and Range are classes made of 2 ints
Point barycenter_of_vector_in_range(vector<cv::Point> &points, cv::Range range);

//In other place...
vector<vector<Point> > tracks_; //it has some content 
for (vector< vector<Point> >::const_iterator track = tracks_.begin(); track != tracks_.end(); track++) {

    Point barycenter = barycenter_of_vector_in_range(&(*track), Range(0, track->size())); //Compile ERROR
}

我想知道为什么这不起作用?我得到“无效的类型引用初始化…”

任何帮助都将不胜感激

谢谢