Information Technology Reference
In-Depth Information
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Fig. 26
Half a pixel Calculation Method
MPEG-2 has adopted various coding tools to support the efficient coding of
Interlace video signals. First, Frame prediction, Field prediction or Dual prime
prediction can be selected adaptively in order to perform optimal prediction ac-
cording to the movement of the objects in video as shown in Fig. 27.
Reference
Macroblock
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Frame
prediction
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Predicted
Macroblock
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Field
prediction
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MIX
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Dual-prime
prediction
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䋫
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MIX
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Frame picture MC is performed by comparison and selection of best matching
macroblock among frame, field and dual prime predictions.
Fig. 27
Frame/field Adaptive Prediction
