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J. Veenstra and N. Ahuja, Line Drawings of Octree-Represented Objects, ACM Transactions on Graphics, January 1988, 61-75. Abstract

J. Veenstra and N. Ahuja, Efficient Octree Generation from Silhouettes, IEEE Conf. on Computer Vision and Pattern Recognition, Miami, June 22-26, 1986, 537-542. Abstract

N. Ahuja and J. Veenstra, Generating Octrees from Object Silhouettes in Orthographic Views,
IEEE Trans. Pattern Analysis and Machine Intelligence, February 1989, 137-149. Abstract

S. Srivastava and N. Ahuja, Octree Generation from Object Silhouettes in Perspective Views, Computer Vision, Graphics and Image Processing, January 1990, 68-84. Abstract