Application of edge detection method in linear array CCD

QU Shi-bo; ZHOU Yan-tao

doi:10.13873/j.1000-97872013.08.009

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Application of edge detection method in linear array CCD

更新时间：2025-09-11

- Application of edge detection method in linear array CCD
- Vol. 32, Issue 8, Pages: 149-152(2013)
- 作者机构：
  
  湖南大学电气与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872013.08.009
  CLC： TN386.5;TP391.41
- Published：2013
- 稿件说明：
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[1]瞿仕波,周炎涛.边缘检测法在线阵CCD中的应用[J].传感器与微系统,2013,32(08):149-152.

QU Shi-bo, ZHOU Yan-tao. Application of edge detection method in linear array CCD[J]. 2013, 32(8): 149-152.
[1]瞿仕波,周炎涛.边缘检测法在线阵CCD中的应用[J].传感器与微系统,2013,32(08):149-152. DOI： 10.13873/j.1000-97872013.08.009.

QU Shi-bo, ZHOU Yan-tao. Application of edge detection method in linear array CCD[J]. 2013, 32(8): 149-152. DOI： 10.13873/j.1000-97872013.08.009.

摘要

根据工业、交通等领域对于非接触测量越来越高的精度需求

采用先进的线阵耦合器件（CCD）和复杂可编程逻辑器件（CPLD）技术

设计了一种用于实现高精度边缘检测的系统。系统将一维视频信号的噪声通过滤波技术、相关双采样技术进行消除

经A/D转换后求出信号灰度梯度最大的点

由直线拟合方法确定出经过平滑滤波处理的CCD图像的亚像元级边界。系统测试表明:所设计的片上系统具有高精度、高速度、高集成度、高可靠性的特性

有很强的实用性。

Abstract

According to industry and transportation and other fields have higher and higher demands on precision of non-contact detection

a kind of system is designed for high-precision edge detection using advanced CCD and CPLD technology.The noise of one-dimensional video signal is eliminated by system through filtering and correlated double sampling technologies.Then the maximal point of signal gray scale gradient is worked out after A/D transformation.Straight line fitting method determines sub-pixel boundary of CCD image which is disposed by smoothing filtering.System testing indicates that the designed system on chip is characterized by high precision

high-speed

high-integration

high reliability and strong practical applicability.

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Keywords

references

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