Optical flow for object tracking

1. What is optical flow tracking?
2. What is optical flow used for?
3. Which algorithm is best for object tracking?

What is optical flow tracking?

19.3.

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 optical flow used for?

Optical flow is a technique used to describe image motion. It is usually applied to a series of images that have a small time step between them, for example, video frames. Optical flow calculates a velocity for points within the images, and provides an estimation of where points could be in the next image sequence.

Which algorithm is best for object tracking?

DeepSORT is one of the most popular object tracking algorithms. It is an extension to Simple Online Real-time Tracker or SORT, which is an online-based tracking algorithm. SORT is an algorithm that uses the Kalman filter for estimating the location of the object given the previous location of the same.