Work out the following problem of MPEG motion vector search in detail.
The Target (Current) Frame is a B-frame. The size of macroblocks is

4 \times 4

and the search range is the entire picture.
The macroblock in question (darkened) in the frame has its upper-left corner at

\left(x_{t}, y_{t}\right)

. It contains 12 dark pixels, each with intensity value 10. the other 4 pixels are part of the background, which has a uniform intensity value of 100 . There are obstacles in the scene having light pixels with value 50 .
The complete scene is described in the figure.
What is the best motion vector for coding this frame?
$Work out the following problem of MPEG motion vector search in detail. The Target (Current) Frame is a B-frame. The size of macroblocks is 4 \times 4 and the search range is the entire picture. The macroblock in question (darkened) in the frame has its upper-left corner at \left(x_{t}, y_{t}\right) . It contains 12 dark pixels, each with intensity value 10. the other 4 pixels are part of the background, which has a uniform intensity value of 100 . There are obstacles in the scene having light pixels with value 50 . The complete scene is described in the figure. What is the best motion vector for coding this frame?$

Switching Is Important for Interconnection of Telephone Networks

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