using transform coding

Introduced: January 2014

Full Title

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using transform coding

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2014.

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H04N 19/61 in combination with predictive coding since 2014 +1 CPC IPC+CPC Available in IPC and CPC
H04N 19/62 by frequency transforming in three dimensions [3D] (H04N19/63 takes precedence) since 2014 IPC+CPC Available in IPC and CPC
H04N 19/625 using discrete cosine transform [DCT] since 2014 IPC+CPC Available in IPC and CPC
H04N 19/63 using sub-band based transform, e.g. wavelets since 2014 IPC+CPC Available in IPC and CPC
H04N 19/649 CPC only CPC only