计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
32期
161-163,202
,共4页
图像平滑%边缘检测%边缘定位%精度%算子
圖像平滑%邊緣檢測%邊緣定位%精度%算子
도상평활%변연검측%변연정위%정도%산자
image smooth%edge detection%edge orientation%precision%operator
图像平滑算子的性能会直接影响到边缘检测的精度,并最终影响到边缘定位的精度,从而影响CCD摄像机的标定精度.所以通过实验对图像平滑算子和边缘检测算子进行了性能比较,可以看出中值滤波算子在保持良好的去噪性能基础上,与均值滤波相比能够很好地保持图像的边缘等细节,与图像间平均滤波相比能够节约时间、提高效率.与Canny算子相比,Sobel算子不但能够准确地检测出目标的边缘,而且具有很强的抗噪性,在检测直线边缘方面具有很强的优势,更加适合应用的需要.
圖像平滑算子的性能會直接影響到邊緣檢測的精度,併最終影響到邊緣定位的精度,從而影響CCD攝像機的標定精度.所以通過實驗對圖像平滑算子和邊緣檢測算子進行瞭性能比較,可以看齣中值濾波算子在保持良好的去譟性能基礎上,與均值濾波相比能夠很好地保持圖像的邊緣等細節,與圖像間平均濾波相比能夠節約時間、提高效率.與Canny算子相比,Sobel算子不但能夠準確地檢測齣目標的邊緣,而且具有很彊的抗譟性,在檢測直線邊緣方麵具有很彊的優勢,更加適閤應用的需要.
도상평활산자적성능회직접영향도변연검측적정도,병최종영향도변연정위적정도,종이영향CCD섭상궤적표정정도.소이통과실험대도상평활산자화변연검측산자진행료성능비교,가이간출중치려파산자재보지량호적거조성능기출상,여균치려파상비능구흔호지보지도상적변연등세절,여도상간평균려파상비능구절약시간、제고효솔.여Canny산자상비,Sobel산자불단능구준학지검측출목표적변연,이차구유흔강적항조성,재검측직선변연방면구유흔강적우세,경가괄합응용적수요.
Capability of smoothing operator of image directly impacts the precision of edge detection and edge orientation finally.So precision of cahbration of CCD camera will be effected.Capability of smoothing operator of image and edge detection operator is compared through experiment.Compared with mean fiher,medial filter operator protects details of image edges well under the conditions of good capability protected of wiping off noise.Compared with even filter,medial filter operator can save time and improve efficiency.Compared with Canny operator,sobel operator not only detects edges of objects exactly but also has the capability of resisting noise strongly.On the side of detecting edge of line,sobel operator has many advantages and it meets the need of application.
