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題名 | Representation of Symbolic Pictures Using N-strings |
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作 者 | 周韻寰; 吳順裕; | 書刊名 | 黃埔學報 |
卷期 | 37 1999.08[民88.08] |
頁次 | 頁321-344 |
分類號 | 312.1 |
關鍵詞 | 影像資料庫; 2D-string; Image database systems; N-string; Quadtree; Symbolic pictures; |
語文 | 英文(English) |
英文摘要 | Symbolic pictures have been proposed to describe the relationships between ojects in an image. A data structure, called 2D-string, has been proposed to represent symbolic pictures by two-dimensional strings. In this paper, we propose a new quadtree data structure, called N-string. Algorithms for transformations between symbolic pictures and N-strings are also developed. We prove that the storage space needed for N-strings is less than that for 2D-strings in most cases. Hence N-string is good for representing symbolic pictures. |
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