灰度投影算法的安检图像判读及FPGA实现方法
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摘要
基于灰度投影算法提出了两种方案寻找安检图像中灰度值最小的区域,即疑似危险品区域。首先运用中值滤波的方法去除图像噪声,提高图像质量。然后分别采用灰度积分投影算法和分块灰度投影算法找出疑似危险区域,对两种方案效果做出评价。在算法的实现上,利用FPGA高速并行处理能力获得比上位机软件更快的处理速度,通过硬件描述语言Verilog进行设计实现。
Based on grayscale projection algorithm,two schemes to find the minimum gray value in security image are proposed,so that intelligent interpretation can be found in the area where dangerous goods can be found.First,the median filtering method is used to remove image noise and improve image quality.Then,the gray integral projection algorithm and the block gray projection algorithm are used to find the suspected dangerous area,the effects of the two schemes are evaluated.In the implementation of the algorithm,the highspeed parallel processing capability of the FPGA is used to obtain faster processing speed than the upper computer software,and the design is realized by the Verilog.
Based on grayscale projection algorithm,two schemes to find the minimum gray value in security image are proposed,so that intelligent interpretation can be found in the area where dangerous goods can be found.First,the median filtering method is used to remove image noise and improve image quality.Then,the gray integral projection algorithm and the block gray projection algorithm are used to find the suspected dangerous area,the effects of the two schemes are evaluated.In the implementation of the algorithm,the highspeed parallel processing capability of the FPGA is used to obtain faster processing speed than the upper computer software,and the design is realized by the Verilog.
引文
[1]徐一鹤,何林锋,叶东胜,等.X射线行李安检机的检测及其重要性[J].上海计量测试,2010(1):43-45,50.
[2]米仲勇.人工智能技术在高铁安检系统中的前瞻性应用[J].电子技术与软件工程,2017(12):254-255.
[3]张春兰.安检系统中X射线透射图像处理方法研究[D].沈阳:沈阳大学,2015.
[4]韩团军.快速中值滤波算法研究及其FPGA硬件实现[J].电子器件,2017,40(3):697-701.
[5]汤书森,苟煜春,张文强,等.用FPGA和改进的LMS算法实现自适应滤波器[J].单片机与嵌入式系统应用,2018,18(2):18-20.
[6]巩稼民.基于分块灰度投影的电子稳像算法[J].西安邮电大学学报,2017,22(2):60-64.
[7]孙潇郴.关于X射线安检图像的校正方法研究[J].电子制作,2016(21):42-44.
[2]米仲勇.人工智能技术在高铁安检系统中的前瞻性应用[J].电子技术与软件工程,2017(12):254-255.
[3]张春兰.安检系统中X射线透射图像处理方法研究[D].沈阳:沈阳大学,2015.
[4]韩团军.快速中值滤波算法研究及其FPGA硬件实现[J].电子器件,2017,40(3):697-701.
[5]汤书森,苟煜春,张文强,等.用FPGA和改进的LMS算法实现自适应滤波器[J].单片机与嵌入式系统应用,2018,18(2):18-20.
[6]巩稼民.基于分块灰度投影的电子稳像算法[J].西安邮电大学学报,2017,22(2):60-64.
[7]孙潇郴.关于X射线安检图像的校正方法研究[J].电子制作,2016(21):42-44.