A connectivity algorithm hardware implementation system wherein a subject pixel in a raster-scanned digitized image is declared a pixel of interest, in real time, by it being part of a potential target where every pixel on a closed pixel path enclosing the subject pixel differs in intensity from the...http://www.google.com.tw/patents/US5384860?utm_source=gb-gplus-share專利 US5384860 - Real time connectivity algorithm system