红外技术
紅外技術
홍외기술
INFRARED TECHNOLOGY
2010年
2期
93-96
,共4页
Canny%中值滤波%FPGA
Canny%中值濾波%FPGA
Canny%중치려파%FPGA
Canny%median filter%FPGA
针对传统的Canny算子采用高斯滤波会造成图像的过度平滑并导致弱边缘检测能力降低的缺点,提出了一种改进的Canny边缘检测算法,采用中值滤波代替高斯滤波,利用中值滤波器能有效地清除脉冲噪声的优点以提高边缘检测精度.该算法在FPGA(现场可编程门阵列)上得以实现,实验结果表明改进后的算法提高了弱边缘的检测能力.
針對傳統的Canny算子採用高斯濾波會造成圖像的過度平滑併導緻弱邊緣檢測能力降低的缺點,提齣瞭一種改進的Canny邊緣檢測算法,採用中值濾波代替高斯濾波,利用中值濾波器能有效地清除脈遲譟聲的優點以提高邊緣檢測精度.該算法在FPGA(現場可編程門陣列)上得以實現,實驗結果錶明改進後的算法提高瞭弱邊緣的檢測能力.
침대전통적Canny산자채용고사려파회조성도상적과도평활병도치약변연검측능력강저적결점,제출료일충개진적Canny변연검측산법,채용중치려파대체고사려파,이용중치려파기능유효지청제맥충조성적우점이제고변연검측정도.해산법재FPGA(현장가편정문진렬)상득이실현,실험결과표명개진후적산법제고료약변연적검측능력.
Aiming at the problem that the traditional Canny algorithm using Gaussian filter will cause excessive image smoothing and reduce the ability to detect the weak edge,an improved Canny algorithm using the median filter which can effectively remove impulse noise and improve the precision of edge detection to instead Gaussian filtering is represented.And this algorithm is realized in FPGA(Field Programmable Gate Array)and experimental results have showed that it can improve the ability to detect the weak edge.
