| 基于B样条插值的图像边缘检测的硬件实现 |
| |
| 引用本文： | 李开宇.基于B样条插值的图像边缘检测的硬件实现[J].光电工程,2007,34(2):93-99. |
| |
| 作者姓名： | 李开宇 |
| |
| 作者单位： | 南京航空航天大学,自动化学院,江苏,南京,210016 |
| |
| 摘 要： | 为了能高速、高质量地进行图像边缘检测,提出了一种新的基于B样条插值的边缘检测方法.该方法采用了三次B样条插值原理,对图像的像素点灰度值进行插值运算,提出了基于B样条插值的一阶和二阶微分算子,并引入数字滤波技术加以实现.还利用B样条的可分离特性,实现了2维空间中基于B样条插值的连续图像的重构函数,在此基础上提出了用于边缘检测的基于3次B样条的一阶微分模板和二阶微分模板.设计出一套基于DSP FPGA的实时图像处理和显示系统.
|
| 关 键 词： | 边缘检测 B样条插值 数字滤波 可编程门阵列 |
| 文章编号： | 1003-501X(2007)02-0093-07 |
| 收稿时间： | 2006/3/24 |
| 修稿时间： | 2006-03-24 |
Hardware realization of image edge-detection based on B-Spline interpolation |
| |
| LI Kai-yu.Hardware realization of image edge-detection based on B-Spline interpolation[J].Opto-Electronic Engineering,2007,34(2):93-99. |
| |
| Authors: | LI Kai-yu |
| |
| Affiliation: | College of,4utomation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| |
| Abstract: | In order to realize fast and high-quality edge detection for image,a new approach for edge-detection was introduced based on B-spline interpolation.The cubic B-spline interpolation was adopted to calculate the gray of pixels of the image,and then the 1-order differential operator and the 2-order differential operator were designed and realized by means of the digital filter technology.The continuous synthesis function of 2D space based on B-spline interpolation was also realized By making use of separability of B-spline.Then a 1-order gradient template and a 2-order gradient template were designed for edge detection,and real-time image processing and displaying system were also developed based on Digital Signal Processing(DSP) and Field Programmable Gate Array(FPGA) . |
| |
| Keywords: | Edge-detection B-spline Interpolation Digital filtering FPGA |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
