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High Efficiency Video Coding

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HEVC (encoder)

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HEVC (encoder) 1) Each picture is split into block shaped regions - decoder has the same

block info

2) First picture (and the firstpicture of each random access point into a sequence)is coded using intra-pictureprediction

3) The remaining picture is coded using inter-picturepredictive coding mostly- select reference picture- motion vector

4) Encoder duplicates decoder processing loop(shaded boxes)

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HEVC (encoder)2) First picture (and the firstpicture of each random access point into a sequence)is coded using intra-pictureprediction - example of intra-picturecoding process (red)

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HEVC (encoder)2) decoding example - after intra-picture estimation,the residual image is transform coded

Þ In decoder, this process is done in inverse (blue)

Decoded pictures is stored in buffer for prediction of subsequent pictures