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?

Question

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 4×44 \times 44×4

Work Out the Following Problem of MPEG Motion Vector Search $4 \times 4$