ES2011327A6 - Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional. - Google Patents

Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional.

Info

Publication number
ES2011327A6
ES2011327A6 ES8800988A ES8800988A ES2011327A6 ES 2011327 A6 ES2011327 A6 ES 2011327A6 ES 8800988 A ES8800988 A ES 8800988A ES 8800988 A ES8800988 A ES 8800988A ES 2011327 A6 ES2011327 A6 ES 2011327A6
Authority
ES
Spain
Prior art keywords
obtaining
real time
discrete cosine
cosine transform
dimensional discrete
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
ES8800988A
Other languages
English (en)
Inventor
Flores Tomas Sanjuan
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.)
Nokia Spain SA
Original Assignee
Alcatel Standard Electrics SA
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 Alcatel Standard Electrics SA filed Critical Alcatel Standard Electrics SA
Priority to ES8800988A priority Critical patent/ES2011327A6/es
Priority to AU31385/89A priority patent/AU611002B2/en
Priority to AT89105401T priority patent/ATE123163T1/de
Priority to DE68922775T priority patent/DE68922775T2/de
Priority to EP89105401A priority patent/EP0335306B1/en
Publication of ES2011327A6 publication Critical patent/ES2011327A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Abstract

APARATO PARA LA OBTENCION EN TIEMPO REAL DE LA TRANSFORMADA DISCRETA DE COSENO BIDIMENSIONAL. ESPECIALMENTE APLICABLE A LA COMPRESION DE SEÑALES DE VIDEO. SE UTILIZA LA POSIBILIDAD DE DESCOMPONER UNA TRANSFORMADA BIDIMENSIONAL EN DOS TRANSFORMADAS UNIDIMENSIONALES, CALCULANDOSE ESTAS EN PROCESOS SOLAPADOS EN EL TIEMPO, GENERANDO EL PRIMERO DE DICHOS PROCESOS DATOS PARA EL SEGUNDO Y CONSUMIENDO EL SEGUNDO LOS DATOS QUE PREVIAMENTE HAYA SUMINISTRADO EL PRIMERO. EL APARATO SE COMPONE DE DOS CIRCUITOS MULTIPLICADORES (6, 12) SEPARADOS ENTRE SI POR DOS MEMORIAS FIFO (9, 11) QUE ACTUAN DE ALMACENAMIENTO TEMPORAL, Y DE UNA LOGICA DE SELECCION (10) QUE ASIGNA EN CADA MOMENTO LA FUNCION DE LECTURA O ESCRITURA A CADA MEMORIA FIFO (9, 11).
ES8800988A 1988-03-30 1988-03-30 Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional. Expired - Lifetime ES2011327A6 (es)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES8800988A ES2011327A6 (es) 1988-03-30 1988-03-30 Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional.
AU31385/89A AU611002B2 (en) 1988-03-30 1989-03-16 Discrete cosine transform
AT89105401T ATE123163T1 (de) 1988-03-30 1989-03-28 Verfahren und einrichtung, um in einer echtzeit die zweidimensionale diskrete kosinustransformation zu erhalten.
DE68922775T DE68922775T2 (de) 1988-03-30 1989-03-28 Verfahren und Einrichtung, um in einer Echtzeit die zweidimensionale diskrete Kosinustransformation zu erhalten.
EP89105401A EP0335306B1 (en) 1988-03-30 1989-03-28 Method and device for obtaining in real time the two-dimensional discrete cosine transform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8800988A ES2011327A6 (es) 1988-03-30 1988-03-30 Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional.

Publications (1)

Publication Number Publication Date
ES2011327A6 true ES2011327A6 (es) 1990-01-01

Family

ID=8255629

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8800988A Expired - Lifetime ES2011327A6 (es) 1988-03-30 1988-03-30 Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional.

Country Status (5)

Country Link
EP (1) EP0335306B1 (es)
AT (1) ATE123163T1 (es)
AU (1) AU611002B2 (es)
DE (1) DE68922775T2 (es)
ES (1) ES2011327A6 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336180B1 (en) 1997-04-30 2002-01-01 Canon Kabushiki Kaisha Method, apparatus and system for managing virtual memory with virtual-physical mapping
IT1235263B (it) * 1989-06-02 1992-06-26 Sgs Thomson Microelectronics Metodo e dispositivo per il calcolo aritmetico di trasformate bidimensionali.
AUPO648397A0 (en) 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Improvements in multiprocessor architecture operation
US6311258B1 (en) 1997-04-03 2001-10-30 Canon Kabushiki Kaisha Data buffer apparatus and method for storing graphical data using data encoders and decoders
US6507898B1 (en) 1997-04-30 2003-01-14 Canon Kabushiki Kaisha Reconfigurable data cache controller
US6259456B1 (en) 1997-04-30 2001-07-10 Canon Kabushiki Kaisha Data normalization techniques
US6707463B1 (en) 1997-04-30 2004-03-16 Canon Kabushiki Kaisha Data normalization technique
AUPO647997A0 (en) 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Memory controller architecture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625737A1 (de) * 1986-07-30 1988-02-11 Bosch Gmbh Robert Verfahren zur zweidimensionalen diskreten cosinus-transformation

Also Published As

Publication number Publication date
ATE123163T1 (de) 1995-06-15
EP0335306B1 (en) 1995-05-24
DE68922775D1 (de) 1995-06-29
EP0335306A2 (en) 1989-10-04
AU611002B2 (en) 1991-05-30
AU3138589A (en) 1989-10-05
DE68922775T2 (de) 1995-12-07
EP0335306A3 (en) 1989-11-29

Similar Documents

Publication Publication Date Title
EP0385317A3 (en) Signal processing device
EP0468910A3 (en) Dynamic data compression utilization method and system
DE69232913T2 (de) Gerät zur Dekomprimierung von Video-Daten
DE69214638T2 (de) Gerät zum komprimieren von video-daten
FR2701186B1 (fr) Système pour comprimer et décomprimer des données numériques d'images.
EP0573153A3 (en) Apparatus and method for converting line segments to three-dimensional data.
MY111274A (en) Image generating method and apparatus
ES2011327A6 (es) Metodo y aparato para la obtencion en tiempo real de la transformada discreta de coseno bidimensional.
DE69014702T2 (de) Verfahren und Gerät zur Abtastumsetzung von Radarvideosignalen in Fernsehsignale.
JPS6436374A (en) Image retrieval system
DE68919669T2 (de) Graphikbilddatenkompressionsverfahren.
NO911629D0 (no) Fremgangsmaate og system for datakompresjon.
TNSN87098A1 (fr) Procede et dispositif d'initialisation d'appareils d'acquisition de donnees et notamment de donnees sismiques
IT1230284B (it) Procedimento e dispositivo per la ricezione di segnali in sistemi radiomobili digitali.
JPS5648756A (en) Facsimile equipment
HK1002246A1 (en) Video signal processing and video stores
MY121232A (en) Apparatus and method for extracting a portion of an image
JPS5750083A (en) Recording device
DE69018394T2 (de) Bilddatenkompressionsverfahren und -vorrichtung.
EP0590807A3 (en) Image and sound processing apparatus
JPS52106641A (en) Data record storage for high-speed sequential access
ES2038897A2 (es) Metodo y dispositivo de regulacion de velocidad de salida de datos para compresores de imagenes con velocidad de salida variable.
EP0518311A3 (en) File store method, file access method, and distributed processing system using such methods
EP0368250A3 (en) Apparatus for transmitting stored information
FR2656111B1 (fr) Procede et dispositif d'acquisition de donnees sismiques de puits selon deux directions opposees.

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020401