CAJ | 학술논문

针对帧差法易产生空洞以及背景减法不能检测出与背景灰度接近的目标的问题,提出了一种将对称差分法和背景减法相结合的运动目标检测算法.首先利用对称差分法和背景减法分别得到两种差分图像,并用OTSU分割法(大津法)得到合适的阚值将这两种差分图像二值化,然后将得到的两种二值化图像进行或运算,最后利用图像形态学滤波得到准确的运动目标.
침대정차법역산생공동이급배경감법불능검측출여배경회도접근적목표적문제,제출료일충장대칭차분법화배경감법상결합적운동목표검측산법.수선이용대칭차분법화배경감법분별득도량충차분도상,병용OTSU분할법(대진법)득도합괄적감치장저량충차분도상이치화,연후장득도적량충이치화도상진행혹운산,최후이용도상형태학려파득도준학적운동목표.
Considering disadvantages of that frame differencing produces the empty hole easily and background subtraction can't detect the object whose gray level is close to the background's,a method of motion detection combining symmetrical differencing and background subtraction is proposed.First,two different difference images with symmetrical differencing and background sub-traction are gained respectively and two binary images can be gained by the appropriate threshold which comes from the method of OTSU.Then,the precise moving object can be extracted by applying OR operator between the two binary images.Finally,the precise moving object will be gained by morphological falter.