Human is very sensitive to the information of silhouettes . image based visual hull method is an efficient way to construct 3d models from a set of images by computing shape - from - silhouettes 作为基于图像建模的一种重要方法，可见外壳生成方法( image - basedvisualhull )就是利用图像侧影轮廓线来重建三维模型。
