多层影子显示位图技术研究  

Research on the Multi-Layer Shadow Display Bitmap Technology

作　　者：费建刚[1] 梁建国[1] 王欣玮[1] 

机构地区：[1]青岛港湾职业技术学院信息工程系,山东青岛266404

出　　处：《软件导刊》2015年第10期153-154,共2页Software Guide

基　　金：山东省高等学校科技计划项目(J11LG22);青岛港湾职业技术学院自然科学研究项目(QDGW2013Z02);青岛港湾职业技术学院教育科学研究项目(GW2013A04)

摘　　要：在图形图像系统(如地理信息系统)中,对屏幕上的图形图像边界位置进行精确识别是一个技术难题。部分应用软件中,近似处理产生的误差超过可接受范围。影子显示位图技术能很好解决此类问题,但该技术具有局限性,即假定在屏幕上任何点最多只有一个图元。提出一种全新图形识别技术——多层影子显示位图(Multilayer Shadow Display Bitmap)技术。探讨该技术的工作原理和实现方法,实验证明,该技术可解决多图元重合情况下无误差识别图形元素问题。In the development of geographic information system,it＇s difficult to recognize screen graph precisely. In some practical applications, the approximate processing error has already been beyond acceptable degree. Shadow Display Bitmap technology is a good solution to solve these problems, however, this technology has some limitation assuming that one ele- ment at most exited at any point on the screen. A new method of graph recognition is presented multilayer shadow dis- play bitmap technology. In this paper, the principle and the realization method of multilayer shadow display bitmap technol- ogy are discussed in detail, and the experimental results proved that the multilayer shadow display bitmap technology real- ized the non error recognition of graphic elements in the multi graph element superposition case.

关 键 词：影子显示位图技术 多层 图形识别 识别误差 地理信息系统 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]