ES2190879A1 - Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos. - Google Patents

Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos.

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Publication number
ES2190879A1
ES2190879A1 ES200101758A ES200101758A ES2190879A1 ES 2190879 A1 ES2190879 A1 ES 2190879A1 ES 200101758 A ES200101758 A ES 200101758A ES 200101758 A ES200101758 A ES 200101758A ES 2190879 A1 ES2190879 A1 ES 2190879A1
Authority
ES
Spain
Prior art keywords
discrete cosine
image compression
cosine transformation
residue
compression circuit
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.)
Pending
Application number
ES200101758A
Other languages
English (en)
Inventor
Fernandez Pedro Garcia
Perez De Inestrosa Jav Ramirez
Ruiz Antonio Lloris
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.)
Universidad de Granada
Universidad de Jaen
Original Assignee
Universidad de Granada
Universidad de Jaen
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 Universidad de Granada, Universidad de Jaen filed Critical Universidad de Granada
Priority to ES200101758A priority Critical patent/ES2190879A1/es
Publication of ES2190879A1 publication Critical patent/ES2190879A1/es
Pending legal-status Critical Current

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Abstract

Circuito compresor de imágenes mediante la transformada discreta coseno utilizando el sistema numérico de residuos. Este dispositivo permite realizar la compresión de imágenes utilizando la Transformada Discreta Coseno, que es la transformada utilizada en los actuales estándares de compresión de imágenes. Consiste en un dispositivo diseñado mediante la utilización de multiplicadores, sumadores y restadores. Está diseñado de forma que se pueda utilizar como bloque para la realización de la Transformada Discreta Coseno Unidimensional en los distintos métodos estándares de compresión de imágenes como el JPEG para compresión de imágenes fijas, el ITU-T para aplicaciones de videoconferencia y el MPEG para compresión de imágenes en movimiento. El sistema consta de una estructura que utiliza 14 tablas para realizar las multiplicaciones, 20 sumadores y 12 restadores conectados de una forma muy regular. La implementación de la Transformada Discreta Coseno (DCT) se realiza utilizando el Sistema Numérico de Residuos (RNS).
ES200101758A 2001-08-22 2001-08-22 Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos. Pending ES2190879A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200101758A ES2190879A1 (es) 2001-08-22 2001-08-22 Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200101758A ES2190879A1 (es) 2001-08-22 2001-08-22 Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos.

Publications (1)

Publication Number Publication Date
ES2190879A1 true ES2190879A1 (es) 2003-08-16

Family

ID=27838315

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200101758A Pending ES2190879A1 (es) 2001-08-22 2001-08-22 Circuito compresor de imagenes mediante la transformada discreta coseno utilizando el sistema numerico de residuos.

Country Status (1)

Country Link
ES (1) ES2190879A1 (es)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008668A (en) * 1987-10-12 1991-04-16 Sony Corporation Method and apparatus for encoding and decoding data in residue number system
WO1996018956A1 (en) * 1994-12-12 1996-06-20 Lipovski G Jack Apparatus and method for video decoding
US5859788A (en) * 1997-08-15 1999-01-12 The Aerospace Corporation Modulated lapped transform method
US6148034A (en) * 1996-12-05 2000-11-14 Linden Technology Limited Apparatus and method for determining video encoding motion compensation vectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008668A (en) * 1987-10-12 1991-04-16 Sony Corporation Method and apparatus for encoding and decoding data in residue number system
WO1996018956A1 (en) * 1994-12-12 1996-06-20 Lipovski G Jack Apparatus and method for video decoding
US6148034A (en) * 1996-12-05 2000-11-14 Linden Technology Limited Apparatus and method for determining video encoding motion compensation vectors
US5859788A (en) * 1997-08-15 1999-01-12 The Aerospace Corporation Modulated lapped transform method

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