数字式扫描转换技术在黄浦江轮渡导航系统中的应用

The Application of Digital Scan Conversion to the Huangpu River Ferry Navigation System

本文首先简单介绍现有的黄浦江轮渡导航系统,肯定了该系统的特点。提出了存在的问题,然后概述数字式扫描转换技术的基本原理及其特点,分析归纳了造成数字式扫描转换误差的因素。最后,作者提出了数字式扫描转换技术的具体运用方案,设计了该方案的实验系统。实验结果表明,运用数字式扫描转换技术的轮渡导航系统,具有分辨率下降因素少、图像失真因素少、无亮度衰落以及信息扩展能力强等特点。

First, the exsisting navigation system of the Huangpu River ferry is briefly described, of which the features is confirmed and the existing problems are put forward. Then, the basic priciples and features of digital scan conversion are briefly related, and the factors causing digital scan conversion errors are analyzed and summarized. Finally, the authors put forward the concrete project of digital scan conversion and designed the experimental system of this project. The test results indicated that this digital scan conversion ferry navigation system has the following features: less factors of resolution reduction, less factors of pattern distortion, no brightness decline and strong information spread ability etc.