Howtosignalprocessing
- What are the possible applications of optical flow?
- What is optical flow estimation?
- What is U and V in optical flow?
- What is optical flow vector?
What are the possible applications of optical flow?
Optical flow was used by robotics researchers in many areas such as: object detection and tracking, image dominant plane extraction, movement detection, robot navigation and visual odometry. Optical flow information has been recognized as being useful for controlling micro air vehicles.
What is optical flow estimation?
Optical flow, or motion estimation, is a fundamental method of calculating the motion of image intensities, which may be ascribed to the motion of objects in the scene. Optical flow is an extremely fundamental concept that is utilized in one form or another in most video-processing algorithms.
What is U and V in optical flow?
The optical flow vector (u, v) is what we are searching for. This equation tells us that when we apply a flow vector to the spatial gradient of the image it will be exactly canceled by the temporal gradient. This makes sense since we have assumed that there will be no change in the brightness of the image.
What is optical flow vector?
Optical flow is the pattern of apparent motion of image objects between two consecutive frames caused by the movement of object or camera. It is 2D vector field where each vector is a displacement vector showing the movement of points from first frame to second.
