Motion detection techniques using optical flow

A. A. Shafie, Fadhlan Hafiz, M. H. Ali

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Motion detection is very important in image processing. One way of detecting motion is using optical flow. Optical flow cannot be computed locally, since only one independent measurement is available from the image sequence at a point, while the flow velocity has two components. A second constraint is needed. The method used for finding the optical flow in this project is assuming that the apparent velocity of the brightness pattern varies smoothly almost everywhere in the image. This technique is later used in developing software for motion detection which has the capability to carry out four types of motion detection. The motion detection software presented in this project also can highlight motion region, count motion level as well as counting object numbers. Many objects such as vehicles and human from video streams can be recognized by applying optical flow technique.

Original languageEnglish
Pages (from-to)559-561
Number of pages3
JournalWorld Academy of Science, Engineering and Technology
Publication statusPublished - Aug 1 2009


  • Background modeling
  • Motion detection
  • Motion trajectories
  • Optical flow
  • Velocity smoothness constant

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Motion detection techniques using optical flow'. Together they form a unique fingerprint.

Cite this