Motion

How to compute motion vectors

How to compute motion vectors
  1. Which is the simple method for finding motion vector?
  2. What is motion vector?
  3. How do you estimate motion?

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).

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 estimate motion?

There are two mainstream techniques of motion estimation: pel-recursive algorithm (PRA) and block-matching algorithm (BMA). PRAs are iterative refining of motion estimation for individual pels by gradient methods. BMAs assume that all the pels within a block has the same motion activity.

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