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.Info
- 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
Links
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
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).
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)
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 |
-
2001
- 2001-08-22 ES ES200101758A patent/ES2190879A1/es active Pending
Patent Citations (4)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20030816 Kind code of ref document: A1 |
|
FC2A | Grant refused |
Effective date: 20060418 |