Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

Introduced: January 1995

Title

Titles differ between systems:

IPC: Image coding

CPC: Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

Full Title

Full titles differ between systems:

IPC:

Image coding

CPC:

Image coding (bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00)

CPC subdivides this area 4x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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G06T 9/001 CPC only CPC only
G06T 9/002 CPC only CPC only
G06T 9/004 CPC only CPC only
G06T 9/005 CPC only CPC only
G06T 9/007 CPC only CPC only
G06T 9/008 CPC only CPC only
G06T 9/20 Contour coding, e.g. using detection of edges since 1995 IPC+CPC Available in IPC and CPC
G06T 9/40 Tree coding, e.g. quadtree, octree since 1995 IPC+CPC Available in IPC and CPC