The most common vector format by far is the ESRI Shapefile (see Resources), which stores only a single shape type; each file can contain only points or only polygons or only lines.
目前为止，最常用的矢量格式是ESRI Shapefile(见参考资料)，它只存储一种图形；每个文件只包含点或多边形或线条。
The paper first introduces some related techniques to the research subject, such as image file format, skin color detection, skin texture detection, edge detection and shape descriptor, etc.
本文先介绍了一些与课题相关的技术，主要有图象文件格式、肤色检测、纹理检测、轮廓检测和形状描述等技术。
应用推荐