Motion vector in multimedia

1. What is motion vector in multimedia?
2. What is motion vector?
3. How do you find the motion vector?
4. Which is the simple method for finding motion vector?

What is motion vector in multimedia?

Introduction. Motion vectors are typically used to compress video by storing the changes to an image from one frame to the next. We use these vectors creatively to detect and track motion and to find an alternative to traditional video decoding using phase shifting.

What is motion vector?

motion vector: a two-dimensional vector used for inter prediction that provides an offset from the coordinates in the decoded picture to the coordinates in a reference picture.

How do you find the motion vector?

A “motion vector” is calculated by finding a correspondence between rectangles at time t, and rectangles at time t − 1, where t is the frame index in a video signal. Motion vectors were originally invented for video coding.

Which is the simple method for finding motion vector?

The simplest method for finding motion vectors is to sequentially search the whole (2p + 1) x (2p +1) window in the Reference frame (also referred to asfidl search).