Abstract
The problem of symbolic representation of intensity variations in gray-value pictures of real scenes is studied. The goal is to relate the responses of a filter bank of different gradient filters to the structure of the picture which is determined by the physics of the image generation process. A simple criterion is proposed for the selection of a suitable center frequency of the involved band-pass filters. The gradient vectors of the image function give the direction of maximal intensity changes with high resolution (8 bit) which can be used for an invariant shape description by corner points of a contour. The picture is segmented by closed contour lines into regions which form a topographic representation in the picture domain.
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References
Marr, D.: Vision. W.H. Freeman and Comp., San Francisco, CA, 1982
Korn, A.: Combination of Different Spatial Frequency Filters for Modeling Edges and Surfaces in Gray-Value Pictures. Proc.2nd Int. Technical Symposium on Optical and Electro-Optical Applied Science and Engineering, Cannes, Dec. 2–6, 1985, SPIE, Vol. 595, 22–30
Nagel, H.-H.: Principles of (Low-Level) Computer Vision. In “Fundamentals in Computer Understanding: Speech, Vision, and Natural Language”, J.P. Haton (Ed.), Cambridge University Press, Cambridge/UK 113–139 (1987)
Canny, J.F.: Finding Edges and Lines in Images. Artif. Intell. Lab., Mass. Inst. Technol., Cambridge, MA, Tech. Rep. AI-TR-720, June 1983.
Koenderink, J.J. and Doorn, A.J. van: Invariant features of contrast detection: an explanation in terms of self-similar detector arrays. J. Opt. Am. 72, 83–87 (1984)
Wilson, H.R. and Bergen, J.R.: A four channel model for threshold spatial vision. Vision Research, 19, 19–32 (1979)
Campbell, F.W. and Robson, J.G.: Applications of Fourier analysis to the visibility of gratings, J. Physiol. (London) 197, 551–566 (1968)
Frisby, J. P., Seeing, Illusion, Brain and Mind. Oxford University Press, Oxford, 1979
Torre, v., and Poggio T.A., On Edge Detection. IEEE Trans. Pattern Analysis and Machine Intelligence PAMI-8 (1986) 147–163
Asada, H., and Brady, M.: The curvature primal sketch. IEEE Trans. Pattern Analysis and Machine Intelligence PAMI-8, 2–14 (1986)
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© 1989 Springer-Verlag Berlin Heidelberg
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Korn, A.F. (1989). Towards a Primal Sketch of Real World Scenes in Early Vision. In: Eckmiller, R., v.d. Malsburg, C. (eds) Neural Computers. Springer Study Edition, vol 41. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83740-1_14
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DOI: https://doi.org/10.1007/978-3-642-83740-1_14
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