Adaptive chain coding for arbitrary curves

Nelson L. Chang; Sanjeev R. Kulkarni; Jack Koplowitz

doi:10.1117/12.131755

1 November 1992 Adaptive chain coding for arbitrary curves

Nelson L. Chang, Sanjeev R. Kulkarni, Jack Koplowitz

Proceedings Volume 1830, Curves and Surfaces in Computer Vision and Graphics III; (1992) https://doi.org/10.1117/12.131755
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

Adaptive chain coding algorithms based on using multiple templates are developed. One algorithm differentially encodes a curve using a directional template whose angle is dynamically scaled to accommodate a variety of curvature properties. A second algorithm differentially encodes using a template with small angular range with another template occasionally used for reorientation if abrupt changes occur in the properties of the underlying curve. By exploiting the piecewise regularity of most curves, our techniques provide substantially more accurate and efficient encodings compared with standard chain coding algorithms.

Citation Download Citation

Nelson L. Chang, Sanjeev R. Kulkarni, and Jack Koplowitz "Adaptive chain coding for arbitrary curves", Proc. SPIE 1830, Curves and Surfaces in Computer Vision and Graphics III, (1 November 1992); https://doi.org/10.1117/12.131755

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