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Lapped transform

In signal processing, a lapped transform is a type of linear discrete block transformation where the basis functions of the transformation overlap the block boundaries, yet the number of coefficients overall resulting from a series of overlapping block transforms remains the same as if a non-overlapping block transform had been used.

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Acronym
LT
Applications
Audio compression · Image compression · Data compression
Key feature
Overlapping blocks to reduce blocking artifacts
Subtypes
Lapped orthogonal transform (LOT) · Modified discrete cosine transform (MDCT) · Lapped biorthogonal transform (LBT)
Type
Linear transform, Filter bank

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Map overview Semantic statistics

Lapped transform

Nodes18
Edges17
Triples10
Avg. degree1.89
Density0.111111
Components1

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Lapped transform

Top relations

Applications · 3
Lapped transform → Audio compression, Data compression, Image compression
Subtypes · 3
Lapped transform → Lapped biorthogonal transform (LBT), Lapped orthogonal transform (LOT), Modified discrete cosine transform (MDCT)
Acronym · 1
Lapped transform → LT
Key feature · 1
Lapped transform → Overlapping blocks to reduce blocking artifacts
Type · 1
Lapped transform → Linear transform, Filter bank
is a · 1
Lapped transform → type of linear discrete block transformation where the basis functions of the transformation overlap the block boundaries

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Important terminology

used lapped transform coding discrete transforms video cosine audio image block also format linear type overlapping reduce blocking artifacts modified

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Lapped transformAcronymLT1.00infobox
Lapped transformApplicationsAudio compression1.00infobox
Lapped transformApplicationsImage compression1.00infobox
Lapped transformApplicationsData compression1.00infobox
Lapped transformKey featureOverlapping blocks to reduce blocking artifacts1.00infobox
Lapped transformSubtypesLapped orthogonal transform (LOT)1.00infobox
Lapped transformSubtypesModified discrete cosine transform (MDCT)1.00infobox
Lapped transformSubtypesLapped biorthogonal transform (LBT)1.00infobox
Lapped transformTypeLinear transform, Filter bank1.00infobox
Lapped transformis atype of linear discrete block transformation where the basis functions of the transformation overlap the block boundaries0.90text

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    Min side: 3
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