References

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2

Bruno Ernst. The Eye Beguiled: Optical Illusions. Benedikt Taschen Verlag GmbH, 1992.

3

D. A. Huffman. Impossible objects as nonsense sentences. Machine Intelligence, 8:475-492, 1971.

4

J. Malik. Interpreting line drawings of curved objects. International Journal of Computer Vision, 1:73-103, 1987.

5

Vishvjit S. Nalwa. A Guided Tour of Computer Vision. Addison-Wesley, 1993.

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Pietro Parodi. The complexity of understanding line drawings of origami scenes. International Journal of Computer Vision, 18(2):139-170, 1996.

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K. Sugihara. Mathematical structures of line drawings of polyhedrons. IEEE Transactions on Pattern Analysis and Machine Intelligence, 4(5):458-469, 1982.

8

D. Waltz. Understanding line-drawings of scenes with shadows. Artificial Intelligence, 2:79-116, 1971.