A more energy-efficient approach would be to head straight into the current as long as possible and then turn, much as a sailboat tacks in the wind.
一个更节约能源的方法是：尽可能的沿着水流的方向前进，然后再转向，就像帆船在风中行驶那样。
2
A total rectangle matching approach is proposed to extract straight roads in urban areas from high resolution remote sensing images.
提出了一种整体矩形匹配方法，对高分辨率遥感影像中的城市直线道路进行提取。
3
In this paper, an automatic approach for extracting main city roads based on straight lines is developed, in which main city roads are modeled according to their characteristics in the image.