Motion estimation or motion compensation

Introduced: January 2014

Full Title

Full titles differ between systems:

IPC:

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using predictive coding > involving temporal prediction > Motion estimation or motion compensation

CPC:

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using predictive coding (H04N19/61 takes precedence) > involving temporal prediction (adaptive coding with adaptive selection between spatial and temporal predictive coding H04N19/107; adaptive coding with adaptive selection among a plurality of temporal predictive coding modes H04N19/109) > Motion estimation or motion compensation

IPC and CPC are identically structured here. All 18 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2014.

Child Classifications

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H04N 19/513 Processing of motion vectors since 2014 +1 CPC IPC+CPC Available in IPC and CPC
H04N 19/523 with sub-pixel accuracy since 2014 IPC+CPC Available in IPC and CPC
H04N 19/527 Global motion vector estimation since 2014 IPC+CPC Available in IPC and CPC
H04N 19/53 Multi-resolution motion estimation; Hierarchical motion estimation since 2014 IPC+CPC Available in IPC and CPC
H04N 19/533 Motion estimation using multistep search, e.g. two-dimensional [2D]-log search or one-at-a-time search [OTS] since 2014 IPC+CPC Available in IPC and CPC
H04N 19/537 Motion estimation other than block-based since 2014 IPC+CPC Available in IPC and CPC
H04N 19/547 Motion estimation performed in a transform domain since 2014 IPC+CPC Available in IPC and CPC
H04N 19/55 Motion estimation with spatial constraints, e.g. at image or region borders since 2014 IPC+CPC Available in IPC and CPC
H04N 19/553 Motion estimation dealing with occlusions since 2014 IPC+CPC Available in IPC and CPC
H04N 19/557 Motion estimation characterised by stopping computation or iteration based on certain criteria, e.g. error magnitude being too large or early exit since 2014 IPC+CPC Available in IPC and CPC
H04N 19/56 Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search since 2014 IPC+CPC Available in IPC and CPC
H04N 19/563 Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes since 2014 IPC+CPC Available in IPC and CPC
H04N 19/567 Motion estimation based on rate distortion criteria since 2014 IPC+CPC Available in IPC and CPC
H04N 19/57 Motion estimation characterised by a search window with variable size or shape since 2014 IPC+CPC Available in IPC and CPC
H04N 19/573 Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction since 2014 IPC+CPC Available in IPC and CPC
H04N 19/577 Motion compensation with bidirectional frame interpolation, i.e. using B-pictures since 2014 IPC+CPC Available in IPC and CPC
H04N 19/58 Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one (H04N19/23 takes precedence) since 2014 IPC+CPC Available in IPC and CPC
H04N 19/583 Motion compensation with overlapping blocks since 2014 IPC+CPC Available in IPC and CPC