Tree information

• If node is pruned (past a leaf), no need to code

• Encode all nodes 0=leaf 1=not a leaf Group nodes and use VLC

• Parent group is used as context

chcvcd Code

000 0

111 10

else 11 chcvcd

R

ch

cv

cd

p

c0

c1

c2

c3

If P is root (R=1)

c0-c3 Code

0000 11

1111 10

else 0c0c1c2c3

If P ?1111

If P ? 1111

c0-c3 Code

0000 1

else 0c0c1c2c3

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