Prof. Weijun Gao Profile

Prof. Weijun Gao

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Proceedings Article | 31 December 2010 Paper

Boundary character based declining scanning-line filling algorithm

Weijun Gao

Proceedings Volume 7544, 75443K (2010) https://doi.org/10.1117/12.886018

KEYWORDS: Visualization, Computer engineering, Lithium, Computer graphics, Image processing, Computer aided design, Algorithm development, Mechanics, Instrumentation engineering, Precision measurement

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In order to increase the efficiency of filling area, a novel declining scanning-line filling algorithm for filling area is proposed, in which the boundaries of image are traced through the adjacent connection, and their locations of the image edges are recorded at the same time. The direction of scanning-line is determined by the relative position between the seed point and the boundary point, and all the points in the adjacent field of scanning-line are filled only once. The vertical distance between the scanning-line is depended on the connected domain. The number of crossing points between the scanning-line and boundary is used to estimate the state of filling or ending. The algorithm can be used to fill the 4-adjacent or 8-adjacent fields, to settle the problem of deep recursion and iterative stack, and to solve the defect of repeated scanning and filling in traditional algorithm. By using the proposed algorithm, the filling result is accurate, the calculation of the algorithm is decreased, and the filling efficiency is enhanced.

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