ES2242497B1 - METHOD AND DEVICE FOR MEASURING TRAINING ON PAPER USING WAVELETS. - Google Patents
METHOD AND DEVICE FOR MEASURING TRAINING ON PAPER USING WAVELETS.Info
- Publication number
- ES2242497B1 ES2242497B1 ES200301367A ES200301367A ES2242497B1 ES 2242497 B1 ES2242497 B1 ES 2242497B1 ES 200301367 A ES200301367 A ES 200301367A ES 200301367 A ES200301367 A ES 200301367A ES 2242497 B1 ES2242497 B1 ES 2242497B1
- Authority
- ES
- Spain
- Prior art keywords
- paper
- wavelets
- transmission
- image
- measuring
- 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 - Fee Related
Links
Abstract
La formación del papel, es decir la estructuración de las fibras, es un parámetro importante dentro del proceso de fabricación de éste. Esta invención permite diferenciar con más exactitud que mediante los métodos actuales, papeles de distinta formación. El sistema consta de caja de iluminación que tiene como objeto conseguir iluminación uniforme a través del papel que es analizado por transmisión, cámara ccd que capta la imagen del papel iluminado por transmisión y un ordenador que analiza las imágenes que provienen de la cámara, utilizando algoritmos basados en la teoría matemática de las wavelets.The formation of the paper, that is to say the structuring of the fibers, is an important parameter in the process of manufacturing it. This invention allows differentiating more accurately than by current methods, different training roles. The system consists of a lighting box that aims to achieve uniform illumination through the paper that is analyzed by transmission, ccd camera that captures the image of the paper illuminated by transmission and a computer that analyzes the images that come from the camera, using algorithms based on the mathematical theory of wavelets.
Description
Método y dispositivo para la medida de la formación en papel utilizando wavelets.Method and device for measuring the paper training using wavelets.
Óptica, Procesado de imágenes, Ingeniería papelera.Optics, Image Processing, Engineering paper bin.
En relación a dispositivos para la medida de la formación en papel utilizando wavelets, se desconocen patentes y publicaciones que aborden soluciones técnicas similares a las aquí presentadas.In relation to devices for measuring the paper training using wavelets, patents and publications that address technical solutions similar to those here presented.
La formación del papel, es decir la estructuración de las fibras, es un parámetro importante dentro del proceso de fabricación de éste. Esta invención permite diferenciar con mas exactitud que mediante los métodos actuales, papeles de distinta formación. El sistema consta de caja de iluminación, cámara ccd y ordenador que utiliza un programa basado en la teoría matemática de las wavelets.The formation of the paper, that is the fiber structuring is an important parameter within the This manufacturing process. This invention allows to differentiate more accurately than by current methods, papers of different training The system consists of lighting box, camera ccd and computer that uses a theory based program Wavelet math.
El dispositivo consta de tres partesThe device consists of three parts
a) Una caja de iluminación que tiene como objeto conseguir iluminación uniforme a través del papel que es analizado por transmisióna) A lighting box whose purpose is get uniform illumination through the paper being analyzed by transmission
b) Una cámara ccd que capta la imagen del papel iluminado por transmisiónb) A ccd camera that captures the paper image illuminated by transmission
c) Un ordenador que analiza las imágenes que provienen de la cámara, utilizando algoritmos basados en las wavelets.c) A computer that analyzes the images that they come from the camera, using algorithms based on the wavelets
La caja de iluminación tiene como objetivo que la luz que salga por una de las caras sea uniforme, actúa como caja integradora, consiguiendo que la luz de una bombilla se refleje en las caras interiores y finalmente salga uniformemente distribuida. La luz atraviesa la hoja de papel llegando hasta la cámara ccd obteniéndose una imagen de la estructura interna del papel. La imagen obtenida tiene 512 X 512 pixeles.The lighting box aims to the light that comes out from one of the faces is uniform, acts as a box integrating, getting the light of a bulb to be reflected in the inner faces and finally come out evenly distributed. The light passes through the sheet of paper reaching the ccd camera obtaining an image of the internal structure of the paper. The Image obtained has 512 X 512 pixels.
La imagen es analizada utilizando algoritmos basados en la teoría de las wavelets. La imagen se descompone en función de un tipo de wavelets, las wavelets de Daubechies. Se realizan dos descomposiciones consecutivas, calculando a continuación la energía total asociada. Los resultados de la descomposición dependen directamente de la variación que se produce en la imagen en todas las direcciones. Estos resultados dan lugar al índice de wavelet.The image is analyzed using algorithms based on wavelet theory. The image is broken down into function of a type of wavelets, the wavelets of Daubechies. Be perform two consecutive decompositions, calculating at then the total associated energy. The results of the decomposition directly depend on the variation that occurs In the image in all directions. These results give rise to the wavelet index.
Los resultados obtenidos aparecen en la pantalla del ordenador.The results obtained appear on the screen of the computer.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200301367A ES2242497B1 (en) | 2003-06-03 | 2003-06-03 | METHOD AND DEVICE FOR MEASURING TRAINING ON PAPER USING WAVELETS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200301367A ES2242497B1 (en) | 2003-06-03 | 2003-06-03 | METHOD AND DEVICE FOR MEASURING TRAINING ON PAPER USING WAVELETS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2242497A1 ES2242497A1 (en) | 2005-11-01 |
ES2242497B1 true ES2242497B1 (en) | 2007-01-01 |
Family
ID=35276719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200301367A Expired - Fee Related ES2242497B1 (en) | 2003-06-03 | 2003-06-03 | METHOD AND DEVICE FOR MEASURING TRAINING ON PAPER USING WAVELETS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2242497B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815198A (en) * | 1996-05-31 | 1998-09-29 | Vachtsevanos; George J. | Method and apparatus for analyzing an image to detect and identify defects |
DE19650008A1 (en) * | 1996-11-21 | 1998-05-28 | Berliner Inst Fuer Optik Gmbh | Method for optical image analysis for quick detection and classification of defects |
US5893055A (en) * | 1997-05-30 | 1999-04-06 | Abb Industrial Systems, Inc. | Two-dimensional web property variation modeling and control |
DE19857896C1 (en) * | 1998-12-15 | 2000-08-31 | Siemens Ag | Method and device for evaluating spectroscopic measurements on solid materials with spatially and / or temporally varying surfaces |
-
2003
- 2003-06-03 ES ES200301367A patent/ES2242497B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2242497A1 (en) | 2005-11-01 |
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