ES2064315T3 - Transformacion tipo coseno de alta velocidad. - Google Patents

Transformacion tipo coseno de alta velocidad.

Info

Publication number
ES2064315T3
ES2064315T3 ES87305110T ES87305110T ES2064315T3 ES 2064315 T3 ES2064315 T3 ES 2064315T3 ES 87305110 T ES87305110 T ES 87305110T ES 87305110 T ES87305110 T ES 87305110T ES 2064315 T3 ES2064315 T3 ES 2064315T3
Authority
ES
Spain
Prior art keywords
circuit
high speed
type transformation
blocks
transformation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES87305110T
Other languages
English (en)
Inventor
Scott Carroll Knauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of ES2064315T3 publication Critical patent/ES2064315T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • Discrete Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Complex Calculations (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

CONSISTE EN UN CIRCUITO QUE UTILIZA LAS SIMETRIAS DE LA MATRIZ DE COSENO DE LOS COEFICIENTES, PARA PERMITIR QUE TODAS LAS MULTIPLICACIONES SE HAGAN MEDIANTE "MULTIPLICADORES CONSTANTES" QUE COMPRENDEN COMBINACIONES DE TABLAS Y SUMADORES. LA TRANSFORMACION DE COEFICIENTES SE DESARROLLA MEDIANTE LA DIVISION DE CADA UNO EN UNA SECUENCIA DE BLOQUES DE TAMAÑO PRESELECCIONADO, LA INFORMACION EN LOS BLOQUES SE CLASIFICA PARA DESARROLLAR UN ORDEN ESPECIFICO Y LOS BLOQUES REORDENADOS SE APLICAN EN SERIE A UN CIRCUITO DE TRANSFORMACION DE COSENO DE UNA DIMENSION (20) QUE EMPLEA LOS MULTIPLICADORES CONSTANTES. LA SALIDA DEL PRIMER CIRCUITO DE TRANSFORMACION DE COSENO SE APLICA A UNA MEMORIA DE TRANSPOSICION (30) Y MAS TARDE A UN SEGUNDO CIRCUITO DE TRANSFORMACION DE COSENO (40) QUE TAMBIEN EMPLEA "MULTIPLICADORES CONSTANTES".
ES87305110T 1986-06-19 1987-06-10 Transformacion tipo coseno de alta velocidad. Expired - Lifetime ES2064315T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/876,076 US4829465A (en) 1986-06-19 1986-06-19 High speed cosine transform

Publications (1)

Publication Number Publication Date
ES2064315T3 true ES2064315T3 (es) 1995-02-01

Family

ID=25366957

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87305110T Expired - Lifetime ES2064315T3 (es) 1986-06-19 1987-06-10 Transformacion tipo coseno de alta velocidad.

Country Status (7)

Country Link
US (1) US4829465A (es)
EP (1) EP0250152B1 (es)
JP (1) JP2672302B2 (es)
KR (1) KR950012222B1 (es)
CA (1) CA1294053C (es)
DE (1) DE3750791T2 (es)
ES (1) ES2064315T3 (es)

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KR940004467A (ko) * 1992-08-26 1994-03-15 오오가 노리오 이산코사인 변환장치 및 그 역변환장치
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Also Published As

Publication number Publication date
JPS6332660A (ja) 1988-02-12
KR880000879A (ko) 1988-03-30
DE3750791T2 (de) 1995-05-18
DE3750791D1 (de) 1995-01-12
KR950012222B1 (ko) 1995-10-16
EP0250152B1 (en) 1994-11-30
JP2672302B2 (ja) 1997-11-05
US4829465A (en) 1989-05-09
CA1294053C (en) 1992-01-07
EP0250152A2 (en) 1987-12-23
EP0250152A3 (en) 1991-03-13

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