ES2138235T3 - Metodo y aparato para detectar caracteristicas superficiales de objetos traslucidos. - Google Patents
Metodo y aparato para detectar caracteristicas superficiales de objetos traslucidos.Info
- Publication number
- ES2138235T3 ES2138235T3 ES95932422T ES95932422T ES2138235T3 ES 2138235 T3 ES2138235 T3 ES 2138235T3 ES 95932422 T ES95932422 T ES 95932422T ES 95932422 T ES95932422 T ES 95932422T ES 2138235 T3 ES2138235 T3 ES 2138235T3
- Authority
- ES
- Spain
- Prior art keywords
- image
- surface characteristics
- sweeped
- pixels
- picture
- 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
Links
- 235000020971 citrus fruits Nutrition 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010252 digital analysis Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010972 statistical evaluation Methods 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation
Landscapes
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Sorting Of Articles (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
LAS CARACTERISTICAS SUPERFICIALES Y TOPOGRAFICAS DE UN OBJETO TRANSLUCIDO, TAL COMO UNA FRUTA CITRICA CON UNA CORTEZA, SE BARREN Y EVALUAN PARA PERMITIR SU CLASIFICACION DE ACUERDO CON SUS CARACTERISTICAS SUPERFICIALES. EN EL CASO DE UNA FRUTA CITRICA SE IDENTIFICAN OPTICAMENTE EL GROSOR O LA GRANULARIDAD, LA HINCHAZON Y LOS PLIEGUES, LAS PROTUBERANCIAS Y DEPRESIONES, LOS CORTES, LOS PUNZONAMIENTOS, LOS ARAÑAZOS Y LAS RAJAS, ASI COMO LA PUTREFACCION LIMPIA O PICADA DE LA PIEL, A TRAVES DE UN ANALISIS DIGITAL DE LOS BARRIDOS POR PIXELS Y SE CLASIFICAN SEGUN LA CALIDAD SUPERFICIAL DE LA PIEL. EL OBJETO SE CLASIFICA SEPARANDO LA IMAGEN BARRIDA DE LA FRUTA DE LA IMAGEN DE FONDO Y EXTRAYENDO LA IMAGEN DE FONDO. SE LLEVA A CABO UNA EVALUACION ESTADISTICA DE LA IMAGEN DEL OBJETO COMO UN TODO, INCLUYENDO LOS DOS HEMISFERIOS DEL OBJETO, PARA DETERMINAR SI EXISTE ALGUNA VARIACION EN LAS CARACTERISTICAS SUPERFICIALES QUE PUEDA CONSIDERARSE UN DEFECTO O QUE SEA UNA BASE APROPIADA, SOBRE LA CUAL PUEDE REALIZARSE UN JUICIO CLASIFICATORIO. SI ES ASI, LA IMAGEN DEL OBJETO SE SOMETE A UN FILTRADO DE ALTA FRECUENCIA O DE PASO BAJO, Y SE FORMAN UNOS UMBRALES CON LAS INTENSIDADES DE LOS PIXELS PARA OBTENER UNA IMAGEN REFINADA. LA IMAGEN REFINADA SE TABULA U ORGANIZA DESPUES EN UNOS ENTORNOS CONTIGUOS A TRANSICIONES BRUSCAS O TRANSICIONES GRADUALES, PARA IDENTIFICAR AREAS ESPECIFICAS DEFINIDAS COMO MANCHAS QUE, CUANDO SE COMPARAN CON UN AREA MINIMA DADA, PUEDE IDENTIFICARSE UN REQUISITO DE PERFIL Y/O UNA ANCHURA COMO UNA DE LAS IMPERFECCIONES SUPERFICIALES BUSCADAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/334,165 US5845002A (en) | 1994-11-03 | 1994-11-03 | Method and apparatus for detecting surface features of translucent objects |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2138235T3 true ES2138235T3 (es) | 2000-01-01 |
Family
ID=23305894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95932422T Expired - Lifetime ES2138235T3 (es) | 1994-11-03 | 1995-09-06 | Metodo y aparato para detectar caracteristicas superficiales de objetos traslucidos. |
Country Status (15)
Country | Link |
---|---|
US (1) | US5845002A (es) |
EP (1) | EP0738186B1 (es) |
JP (1) | JP3657991B2 (es) |
KR (1) | KR100374909B1 (es) |
CN (1) | CN1058644C (es) |
AT (1) | ATE186661T1 (es) |
AU (1) | AU699165B2 (es) |
BR (1) | BR9505063A (es) |
CA (1) | CA2180361C (es) |
DE (1) | DE69513381T2 (es) |
ES (1) | ES2138235T3 (es) |
GR (1) | GR3032417T3 (es) |
NZ (1) | NZ293112A (es) |
PT (1) | PT738186E (es) |
WO (1) | WO1996014169A1 (es) |
Families Citing this family (89)
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CN101984346A (zh) * | 2010-10-19 | 2011-03-09 | 浙江大学 | 基于低通滤波的水果表面缺陷检测方法 |
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- 1994-11-03 US US08/334,165 patent/US5845002A/en not_active Expired - Lifetime
-
1995
- 1995-09-06 JP JP51528196A patent/JP3657991B2/ja not_active Expired - Fee Related
- 1995-09-06 AU AU35473/95A patent/AU699165B2/en not_active Ceased
- 1995-09-06 ES ES95932422T patent/ES2138235T3/es not_active Expired - Lifetime
- 1995-09-06 EP EP95932422A patent/EP0738186B1/en not_active Expired - Lifetime
- 1995-09-06 AT AT95932422T patent/ATE186661T1/de not_active IP Right Cessation
- 1995-09-06 DE DE69513381T patent/DE69513381T2/de not_active Expired - Fee Related
- 1995-09-06 PT PT95932422T patent/PT738186E/pt unknown
- 1995-09-06 KR KR1019960703628A patent/KR100374909B1/ko not_active IP Right Cessation
- 1995-09-06 CN CN95191836A patent/CN1058644C/zh not_active Expired - Fee Related
- 1995-09-06 CA CA002180361A patent/CA2180361C/en not_active Expired - Fee Related
- 1995-09-06 WO PCT/US1995/011318 patent/WO1996014169A1/en active IP Right Grant
- 1995-09-06 NZ NZ293112A patent/NZ293112A/en not_active IP Right Cessation
- 1995-11-01 BR BR9505063A patent/BR9505063A/pt not_active IP Right Cessation
-
2000
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Publication number | Publication date |
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CN1058644C (zh) | 2000-11-22 |
CN1142205A (zh) | 1997-02-05 |
EP0738186B1 (en) | 1999-11-17 |
BR9505063A (pt) | 1997-10-14 |
CA2180361C (en) | 2005-03-29 |
JP3657991B2 (ja) | 2005-06-08 |
AU699165B2 (en) | 1998-11-26 |
CA2180361A1 (en) | 1996-05-17 |
KR100374909B1 (ko) | 2003-05-12 |
JPH09512342A (ja) | 1997-12-09 |
NZ293112A (en) | 1998-01-26 |
AU3547395A (en) | 1996-05-31 |
WO1996014169A1 (en) | 1996-05-17 |
PT738186E (pt) | 2000-04-28 |
US5845002A (en) | 1998-12-01 |
ATE186661T1 (de) | 1999-12-15 |
GR3032417T3 (en) | 2000-05-31 |
EP0738186A1 (en) | 1996-10-23 |
DE69513381T2 (de) | 2000-06-15 |
DE69513381D1 (de) | 1999-12-23 |
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