Title :
Adaptive approximation bounds for vertex based contour encoding
Author :
Kim, Kyeong Joong ; Lim, Chae Wook ; Kang, Moon Gi ; Park, Kyu Tae
Author_Institution :
Hyundai Electron. Ind. Co., Seoul, South Korea
fDate :
8/1/1999 12:00:00 AM
Abstract :
When approximating the shape of a region, a fixed bound on the tolerable distortion is set for approximating its contour points. An adaptive approximation bound for lossy coding of the contour points is proposed. A function representing the relative significance of the contour points is defined to adjust the distortion bound along the region contour allowing an adaptive approximation of the region shape. The effectiveness of the adaptive contour coding approach for a region-based coding system is verified through experiments
Keywords :
adaptive signal processing; approximation theory; edge detection; image coding; image segmentation; adaptive approximation bounds; decoded image quality; distortion bound; edge-based segmentation; experiments; lossy coding; region contour; region shape approximation; region-based coding system; spatio-temporal segmentation; tolerable distortion; vertex based contour encoding; Approximation error; Arithmetic; Computer aided engineering; Distortion measurement; Encoding; Image coding; Image reconstruction; Image segmentation; Moon; Shape;
Journal_Title :
Image Processing, IEEE Transactions on
