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Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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ELECTRICITY
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Electric communication
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PICTORIAL COMMUNICATION
Current Industry
H04N19/00
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
Sub Industries
H04N19/10
using adaptive coding
H04N19/102
characterised by the element, parameter or selection affected or controlled by the adaptive coding
H04N19/103
Selection of coding mode or of prediction mode
H04N19/105
Selection of the reference unit for prediction within a chosen coding or prediction mode
H04N19/107
between spatial and temporal predictive coding
H04N19/109
among a plurality of temporal predictive coding modes
H04N19/11
among a plurality of spatial predictive coding modes
H04N19/112
according to a given display mode
H04N19/114
Adapting the group of pictures [GOP] structure
H04N19/115
Selection of the code volume for a coding unit prior to coding
H04N19/117
Filters
H04N19/119
Adaptive subdivision aspects
H04N19/12
Selection from among a plurality of transforms or standards
H04N19/122
Selection of transform size
H04N19/124
Quantisation
H04N19/126
Details of normalisation or weighting functions
H04N19/127
Prioritisation of hardware or computational resources
H04N19/129
Scanning of coding units
H04N19/13
Adaptive entropy coding
H04N19/132
Sampling, masking or truncation of coding units
H04N19/134
characterised by the element, parameter or criterion affecting or controlling the adaptive coding
H04N19/136
Incoming video signal characteristics or properties
H04N19/137
Motion inside a coding unit
H04N19/139
Analysis of motion vectors
H04N19/14
Coding unit complexity
H04N19/142
Detection of scene cut or scene change
H04N19/146
Data rate or code amount at the encoder output
H04N19/147
according to rate distortion criteria
H04N19/149
by estimating the code amount by means of a model
H04N19/15
by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
H04N19/152
by measuring the fullness of the transmission buffer
H04N19/154
Measured or subjectively estimated visual quality after decoding
H04N19/156
Availability of hardware or computational resources
H04N19/157
Assigned coding mode
H04N19/159
Prediction type
H04N19/16
for a given display mode
H04N19/162
User input
H04N19/164
Feedback from the receiver or from the transmission channel
H04N19/166
concerning the amount of transmission errors
H04N19/167
Position within a video image
H04N19/169
characterised by the coding unit
H04N19/17
the unit being an image region
H04N19/172
the region being a picture, frame or field
H04N19/174
the region being a slice
H04N19/176
the region being a block
H04N19/177
the unit being a group of pictures [GOP]
H04N19/179
the unit being a scene or a shot
H04N19/18
the unit being a set of transform coefficients
H04N19/182
the unit being a pixel
H04N19/184
the unit being bits
H04N19/186
the unit being a colour or a chrominance component
H04N19/187
the unit being a scalable video layer
H04N19/188
the unit being a video data packet
H04N19/1883
the unit relating to sub-band structure
H04N19/1887
the unit being a variable length codeword
H04N19/189
characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
H04N19/19
using optimisation based on Lagrange multipliers
H04N19/192
the adaptation method, adaptation tool or adaptation type being iterative or recursive
H04N19/194
involving only two passes
H04N19/196
being specially adapted for the computation of encoding parameters
H04N19/197
including determination of the initial value of an encoding parameter
H04N19/198
including smoothing of a sequence of encoding parameters
H04N19/20
using video object coding
H04N19/21
with binary alpha-plane coding for video objects
H04N19/23
with coding of regions that are present throughout a whole video segment
H04N19/25
with scene description coding
H04N19/27
involving both synthetic and natural picture components
H04N19/29
involving scalability at the object level
H04N19/30
using hierarchical techniques
H04N19/31
in the temporal domain
H04N19/33
in the spatial domain
H04N19/34
Scalability techniques involving progressive bit-plane based encoding of the enhancement layer
H04N19/36
Scalability techniques involving formatting the layers as a function of picture distortion after decoding
H04N19/37
with arrangements for assigning different transmission priorities to video input data or to video coded data
H04N19/39
involving multiple description coding [MDC]
H04N19/395
involving distributed video coding [DVC]
H04N19/40
using video transcoding
H04N19/42
characterised by implementation details or hardware specially adapted for video compression or decompression
H04N19/423
characterised by memory arrangements
H04N19/426
using memory downsizing methods
H04N19/427
Display on the fly
H04N19/428
Recompression
H04N19/43
Hardware specially adapted for motion estimation or compensation
H04N19/433
characterised by techniques for memory access
H04N19/436
using parallelised computational arrangements
H04N19/439
using cascaded computational arrangements for performing a single operation
H04N19/44
Decoders specially adapted therefor
H04N19/45
performing compensation of the inverse transform mismatch
H04N19/46
Embedding additional information in the video signal during the compression process
H04N19/463
by compressing encoding parameters before transmission
H04N19/467
characterised by the embedded information being invisible
H04N19/48
using compressed domain processing techniques other than decoding
H04N19/50
using predictive coding
H04N19/503
involving temporal prediction
H04N19/507
using conditional replenishment
H04N19/51
Motion estimation or motion compensation
H04N19/513
Processing of motion vectors
H04N19/517
by encoding
H04N19/52
by predictive encoding
H04N19/521
for estimating the reliability of the determined motion vectors or motion vector field
H04N19/523
with sub-pixel accuracy
H04N19/527
Global motion vector estimation
H04N19/53
Multi-resolution motion estimation Hierarchical motion estimation
H04N19/533
Motion estimation using multistep search
H04N19/537
Motion estimation other than block-based
H04N19/54
using feature points or meshes
H04N19/543
using regions
H04N19/547
Motion estimation performed in a transform domain
H04N19/55
Motion estimation with spatial constraints
H04N19/553
Motion estimation dealing with occlusions
H04N19/557
Motion estimation characterised by stopping computation or iteration based on certain criteria
H04N19/56
Motion estimation with initialisation of the vector search
H04N19/563
Motion estimation with padding
H04N19/567
Motion estimation based on rate distortion criteria
H04N19/57
Motion estimation characterised by a search window with variable size or shape
H04N19/573
Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
H04N19/577
Motion compensation with bidirectional frame interpolation
H04N19/58
Motion compensation with long-term prediction
H04N19/583
Motion compensation with overlapping blocks
H04N19/587
involving temporal sub-sampling or interpolation
H04N19/59
involving spatial sub-sampling or interpolation
H04N19/593
involving spatial prediction techniques
H04N19/597
specially adapted for multi-view video sequence encoding
H04N19/60
using transform coding
H04N19/61
in combination with predictive coding
H04N19/615
using motion compensated temporal filtering [MCTF]
H04N19/619
the transform being operated outside the prediction loop
H04N19/62
by frequency transforming in three dimensions
H04N19/625
using discrete cosine transform [DCT]
H04N19/63
using sub-band based transform
H04N19/635
characterised by filter definition or implementation details
H04N19/64
characterised by ordering of coefficients or of bits for transmission
H04N19/645
by grouping of coefficients into blocks after the transform
H04N19/647
using significance based coding
H04N19/649
the transform being applied to non rectangular image segments
H04N19/65
using error resilience
H04N19/66
involving data partitioning
H04N19/67
involving unequal error protection [UEP]
H04N19/68
involving the insertion of resynchronisation markers into the bitstream
H04N19/69
involving reversible variable length codes [RVLC]
H04N19/70
characterised by syntax aspects related to video coding
H04N19/80
Details of filtering operations specially adapted for video compression
H04N19/82
involving filtering within a prediction loop
H04N19/85
using pre-processing or post-processing specially adapted for video compression
H04N19/86
involving reduction of coding artifacts
H04N19/865
with detection of the former encoding block subdivision in decompressed video
H04N19/87
involving scene cut or scene change detection in combination with video compression
H04N19/88
involving rearrangement of data among different coding units
H04N19/89
involving methods or arrangements for detection of transmission errors at the decoder
H04N19/895
in combination with error concealment
H04N19/90
using coding techniques not provided for in groups H04N19/10-H04N19/85
H04N19/91
Entropy coding
H04N19/93
Run-length coding
H04N19/94
Vector quantisation
H04N19/96
Tree coding
H04N19/97
Matching pursuit coding
H04N19/98
Adaptive-dynamic-range coding [ADRC]
H04N19/99
involving fractal coding
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