We detect stack overflow by monitoring the previous frame pointer . such comes the tool fpw ( frame pointer watcher ) 作者提出利用前幀指針檢測(cè)堆棧溢出的方法即fpw ( framepointerwatcher ) 。
Frame # 6 : the vigor of the right arm pull is evidenced by the amount of upper arm adduction that has occurred since the previous frame 畫(huà)面6 :從上幀畫(huà)面開(kāi)始的上臂內(nèi)收繼續(xù)加大,這也使得右臂的劃水力增大。
In this case , we will simply determine the coordinates of a cell of pixels closest to the top of the captured image and that changed from the previous frame 在這個(gè)示例中,我們只判斷最接近捕捉的圖像頂部與前一幀相比有變化的像素的坐標(biāo)。
The sum of square differences ( ssd ) , which has been defined as square summation of corresponding pixel differences between current and previous frame , has been endowed a novel connotation in this paper 本文賦予當(dāng)前幀總方差ssd新內(nèi)涵,定義其為當(dāng)前幀與前一幀對(duì)應(yīng)像素差的平方和。
It uses different zones named usu - prefrm zone and jmp - prefrm zone to record changing of the previous frame pointer in stack . compared with stack guard and rad , fpw has more efficent performance , same safety and less memory cost 與stackguard和rad相比, fpw具有同樣程度的安全性、占用更少的內(nèi)存空間、減少進(jìn)程意外終止的可能性和更好的運(yùn)行效果等優(yōu)點(diǎn)。