Progressive polygon encoding of shape contours
Progressive polygon encoding of shape contours
- Author(s): C. Le Buhan Jordan and T. Ebrahimi
- DOI: 10.1049/cp:19970845
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- Author(s): C. Le Buhan Jordan and T. Ebrahimi Source: 6th International Conference on Image Processing and its Applications, 1997 p. 17 – 21
- Conference: 6th International Conference on Image Processing and its Applications
- DOI: 10.1049/cp:19970845
- ISBN: 0 85296 692 X
- Location: Dublin, Ireland
- Conference date: 14-17 July 1997
- Format: PDF
This paper presents a new progressive contour coding method based on digital polygonal approximation. By applying digital geometry concepts such as digital contours, segments and distances at the approximation stage, it is possible to design an inherently progressive encoding scheme which directly exploits the resulting geometrical knowledge. Experimental results show a performance similar to that of state of the art polygon encoding methods that do not achieve progressive transmission. Applications include indexing and retrieval of arbitrarily shaped objects in image databases, as well as composition and manipulation of such image objects in the compressed domain as targeted by the future video compression standard MPEG-4.
Inspec keywords: data compression; telecommunication standards; image representation; image segmentation; code standards; video coding; approximation theory
Subjects: Computer vision and image processing techniques; Optical information, image and video signal processing; Interpolation and function approximation (numerical analysis); Codes; Interpolation and function approximation (numerical analysis)
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