Howtosignalprocessing
What is optical flow patterns?
Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an observer and a scene. Optical flow can also be defined as the distribution of apparent velocities of movement of brightness pattern in an image.
What are the method for estimation of optical flow?
Optical Flow Methods
The calculus of variations is then used to find the minimum of this integral in terms of the unknown functions vx(x, y, t) and vy(x, y, t) for each fixed frame t. The resulting equations are then approximated using first-order approximations for the various derivatives involved.
