Deformable light pattern for machine vision system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06K-007/10
출원번호
US-0282840
(2011-10-27)
등록번호
US-8646689
(2014-02-11)
발명자
/ 주소
Moed, Michael C
Tremblay, Robert T
Gerst, III, Carl W
Equitz, William
출원인 / 주소
Cognex Corporation
대리인 / 주소
Quarles & Brady LLP
인용정보
피인용 횟수 :
0인용 특허 :
123
초록▼
A method and apparatus for use with a camera that includes a field of view (FOV), the apparatus for indicating at least a first portion of a field of view for analysis and comprising a light source for generating a first light pattern that is directed onto an object surface within the FOV while the
A method and apparatus for use with a camera that includes a field of view (FOV), the apparatus for indicating at least a first portion of a field of view for analysis and comprising a light source for generating a first light pattern that is directed onto an object surface within the FOV while the light source remains stationary with respect to the object, an adjuster for, while the first light pattern subtends a surface of the object and without moving the light source with respect to the object, modifying the first light pattern to generate a first deformed light pattern that is directed onto the object surface in the FOV and a manual input device for controlling the adjuster to indicate how the first light pattern is to be modified.
대표청구항▼
1. An apparatus for use with a camera that includes a field of view (FOV), the apparatus for indicating at least a first portion of a field of view for analysis and comprising: a light source for generating a first light pattern that is directed onto an object surface that is spaced apart from the c
1. An apparatus for use with a camera that includes a field of view (FOV), the apparatus for indicating at least a first portion of a field of view for analysis and comprising: a light source for generating a first light pattern that is directed onto an object surface that is spaced apart from the camera and that is within the FOV while the light source remains stationary with respect to the object;an adjuster for, while the first light pattern subtends a surface of the object and without moving the light source with respect to the object, modifying the first light pattern to generate a first deformed light pattern that is directed onto the object surface in the FOV; anda manual input device for controlling the adjuster to indicate how the first light pattern is to be modified. 2. The apparatus of claim 1 wherein the light source includes a projector. 3. The apparatus of claim 2 wherein the projector is one of a DLP projector or an LCD projector. 4. The apparatus of claim 1 wherein the light source is supported in a single position with respect to the camera when the adjuster modifies the first light pattern. 5. The apparatus of claim 4 wherein the light source is detachable from the camera and can be used with at least a second camera. 6. The apparatus of claim 1 wherein the light source is controllable to generate several predefined light patterns, the apparatus further including a selector for selecting at least one of the predefined light patterns to be generated by the light source. 7. The apparatus of claim 6 wherein the adjuster is also for modifying the location of a light pattern within the FOV and wherein the manual input device includes a position selector for positioning the light pattern while the light pattern subtends a surface of the object. 8. The apparatus of claim 1 wherein the light source generates a second light pattern in addition to the first light pattern in the FOV and wherein the adjuster is useable to independently modify each of the first and second light patterns while the light patterns subtend a surface of the object in the FOV. 9. The apparatus of claim 1 wherein the first light pattern is generated and modified during a commissioning procedure and wherein the light source also projects output information in addition to the light patterns onto the object surface during the commissioning procedure. 10. The apparatus of claim 9 wherein the output information and the light patterns are simultaneously generated. 11. The apparatus of claim 9 wherein the light source is controllable to generate several predefined light patterns, the output information including a selection tool for selecting at least one of the predefined light patterns, the apparatus further including a selector for selecting at least one of the predefined light patterns from the output information. 12. The apparatus of claim 1 wherein the first light pattern is generated and modified during a commissioning procedure and wherein the light source is further used during a run time process to illuminate object surfaces while images needed for a machine vision process are obtained. 13. The apparatus of claim 1 further including a processor that obtains at least one image from the camera that includes the first deformed light pattern and is programmed to identify the deformed light pattern in the image. 14. The apparatus of claim 1 wherein the manual input device includes at least one of a joystick, a knob, a touch sensitive pad, a roller wheel, a roller sphere and a mechanical button. 15. The apparatus of claim 1 wherein the camera has an optical axis and wherein the light source is arranged to project the light pattern substantially along the optical axis of the camera. 16. The apparatus of claim 1 wherein the adjuster is also for modifying at least one non-shape characteristic of the light pattern to indicate at least one of a processing function associated with the pattern, an aspect of the processing function associated with the pattern, or a processing parameter of the function associated with the pattern. 17. The apparatus of claim 16 wherein the non-shape characteristic of the light pattern is at least one of color of the light pattern and line type used to circumscribe the light pattern. 18. The apparatus of claim 16 wherein the non-shape characteristic indicates at least one of a processing threshold and an acceptance criteria. 19. The apparatus of claim 1 further including a processor linked to the camera, the camera obtaining images of the FOV, the processor programmed to perform a first predefined process on the portion of an obtained image associated with the region specified by the first deformed light pattern. 20. The apparatus of claim 19 wherein the first predefined process is at least one of a measurement process, an inspection process, an alignment process or machine readable indicia decoding. 21. The apparatus of claim 1 further including a processor that identifies a region of interest within the FOV that is associated with the modified light pattern, obtains an image of the FOV, identifies at least one aspect of the obtained image within the region of interest and adjusts at least one aspect of illumination during subsequent image capture as a function of the at least one aspect of the obtained image. 22. The apparatus of claim 21 wherein the at least one aspect of the obtained image within the region of interest is brightness. 23. The apparatus of claim 21 wherein the at least one aspect of illumination is illumination brightness. 24. An apparatus for use with a camera that includes a field of view (FOV), the apparatus for indicating at least a first portion of a field of view for analysis and comprising: a light source for generating a first light pattern that is directed onto an object surface that is spaced apart from the camera and that is in the FOV;an adjuster for, during a commissioning procedure while the light source remains stationary with respect to the object surface, modifying the first light pattern to generate a first deformed light pattern that is directed onto the object surface in the FOV; anda projector for, during the commissioning procedure, projecting output information onto the object surface to indicate options for modifying light pattern characteristics. 25. The apparatus of claim 24 wherein the projector provides the light source. 26. The apparatus of claim 24 wherein the projector provides object surface illumination during a run time procedure which follows the commissioning procedure during which the camera obtains images of object surfaces for processing. 27. The apparatus of claim 1 wherein the adjuster modifies the first light pattern by modifying the shape of the first light pattern. 28. The apparatus of claim 1 wherein the adjuster modifies the first light pattern by modifying at least one non-shape pattern characteristic. 29. The apparatus of claim 28 wherein the non-shape pattern characteristic is one of color and line type of a line that circumscribes the pattern. 30. A method for use with a camera that includes a field of view (FOV), the method for indicating at least a first portion of a field of view for analysis and comprising the steps of: controlling a light source to generate a first light pattern that is directed onto an object surface that is spaced apart from the camera and that is within the FOV while the light source remains stationary with respect to the object;while the first light pattern subtends a surface of the object and without moving the light source with respect to the object, modifying the first light pattern to generate a first deformed light pattern that is directed onto the object surface in the FOV; andusing a manual input device to control the adjuster to indicate how the first light pattern is to be modified. 31. A method for use with a camera that includes a field of view (FOV), the method for indicating at least a first portion of a field of view for analysis and comprising the steps of: providing a light source for generating a first light pattern that is directed onto an object surface that is spaced apart from the camera and that is within the FOV while the light source remains stationary with respect to the object;providing a processor for controlling the light source; andwhile the first light pattern subtends a surface of the object and without moving the light source with respect to the object, using the processor to modify the first light pattern to generate a first deformed light pattern that is directed onto the object surface in the FOV. 32. The method of claim 31 further including the step of projecting output information onto the object surface to indicate options for modifying light pattern characteristics.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (123)
Hecker Joel (Port Jefferson Station NY) Stern Howard (Greenlawn NY), Adaptive vision system.
Schwartz Eric D. ; Hubben Edward B. ; Jovanovski Brian L. ; Hunter Vivian L. ; McCall Melvin D. ; Beckhusen Gerard F., Adjustable illumination system for a barcode scanner.
Schwartz, Eric D.; Hubben, Edward B.; Jovanovski, Brian L.; Hunter, Vivian L.; McCall, Melvin D.; Beckhusen, Gerard F., Adjustable illumination system for a barcode scanner.
Palestini, Valeria; Alessi, Nicola; Rigoni, Giacomo; Oliva, Cristiano, Apparatus and method for acquiring and reading optical codes with result indication.
Palestini,Valeria; Alessi,Nicola; Rigoni,Giacomo; Oliva,Cristiano, Apparatus and method for acquiring and reading optical codes with result indication.
Palestini,Valeria; Alessi,Nicola; Rigoni,Giacomo; Oliva,Cristiano, Apparatus and method for acquiring and reading optical codes with result indication.
Li Yajun (Oakdale NY) Katz Joseph (Stony Brook NY) Swartz Jerome (Old Field NY) McGlynn Daniel (Brooklyn NY), Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology.
DiMatteo Paul L. (Huntington NY) Ross Joseph A. (Fort Salonga NY) Stern Howard K. (Greenlawn NY), Arrangement for sensing the geometric characteristics of an object.
Ken Matsumoto JP, Code reading device and method with light passing through the code twice, an exposure apparatus and a device manufacturing method using the code reading.
Rockstein George B. ; Wilz David M. ; Colavito Stephen J. ; German Gene ; Knowles Carl Harry, Cordless desktop bar code symbol reader having integrated viewing aperture for sighting of bar code symbols to be scann.
Knapp Herbert C. (Holliston MA) Parker Vance A. (Princeton MA) Baxter Larry K. (Marblehead MA) Evans Jon F. (Litchfield NH), Electro-optic barcode reader.
Sant\Anselmo Robert (West Hills CA) Sant\Anselmo Carl (Rancho Palos Verdes CA), Hand held two dimensional symbol reader with a symbol illumination window.
Meyerson, Robert F.; Feng, Chen, Hand-held dataform reader having multiple target area illumination sources for independent reading of superimposed dataforms.
Danielson Arvin D. (Cedar Rapids IA) Durbin Dennis A. (Cedar Rapids IA), Hand-held instant bar code reader having automatic focus control for operation over a range of distances.
Danielson Arvin D. (Solon IA) Durbin Dennis A. (Cedar Rapids IA), Hand-held instant bar code reader having automatic focus control for operation over a range of distances.
Danielson Arvin D. (Cedar Rapids IA) Durbin Dennis A. (Cedar Rapids IA), Hand-held instant bar code reader system with automated focus based on distance measurements.
Koenck Steven E. (Cedar Rapids IA), Hand-held optical character reader with means for instantaneously reading information from a predetermined area at an op.
Barkan, Edward; Shepard, Howard M.; Dvorkis, Paul; Vinogradov, Igor R.; Krichever, Mark; Shi, David Tsi; Gurevich, Vladimir, High speed laser scan module with folded beam path.
Breytman, Alex; Krichever, Mark; Carlson, Brad; Shi, Tsi David; Yavid, Dmitriy, Image scanning device having a system for determining distance to a target.
Patel,Mehul; Shi,Tsi David; Bianculli,Thomas; Giordano,Joseph; Kogan,Eduard; Zhang,Heng; Buongervino,Nicholas, Interface for interfacing an imaging engine to an optical code reader.
Koenck Steven E. (Cedar Rapids IA) Miller Phillip (Cedar Rapids IA) Hanson George E. (Cedar Rapids IA) Schultz Darald R. (Cedar Rapids IA) Krunnfusz Jeffrey S. (Cedar Rapids IA), Laser scanner module having integral interfacing with hand-held data capture terminal.
LeRoy Dickson ; John Groot ; Carl Harry Knowles ; Thomas Amundsen, Laser scanning system mounted over a conveyor belt along which packages bearing bar code symbols are transported and scanned.
Ray,Jim T.; Kohtz,Robert A.; Dant,Michael; Hunt,Jeffrey M., Methods, apparatuses and articles for automatic data collection devices, for example barcode readers, in cluttered environments.
Olmstead Bryan L. ; Ahten Michael J. ; Paris Bruce E. ; Acosta Jorge L. ; Ring James W. ; Huss Paul R. ; Williams Jon P. C. ; McQueen Alexander M. ; Person Randy L., Multi-focus optical reader with masked or apodized lens.
Chandler Donald G. (43 Springwood Ct. Princeton NJ 08540) Batterman Eric P. (207-11 Salem Ct. Princeton NJ 08540), Omnidirectional bar code reader with method and apparatus for detecting and scanning a bar code symbol.
Craen,Pierre; Shi,David Tsi; Gurevich,Vladimir; Barkan,Edward; Vinogradov,Igor, Optical adjustment for increased working range and performance in electro-optical readers.
Roustaei Alexander R. ; Lawrence Roland L. ; Lebaschi Ali ; Bian Long-Xiang ; Fisher Donald, Optical scanner for reading and decoding one- and-two-dimensional symbologies at variable depths of field including mem.
Fukuda Makoto (Kakogawa JPX) Azuma Makoto (Kakogawa JPX) Dejima Katsuro (Kakogawa JPX) Maeda Yukiyoshi (Kakogawa JPX) Yoshitake Kunihiko (Kakogawa JPX), Optical surface inspecting system for inspecting the surface of a rolling roll having mechanism for keeping clean a wind.
Perry, Richard A.; Natalizia, Michael J.; Lyman, Roy P.; Preliasco, Richard J.; Petteruti, Steven F., Portable data collection device for reading fluorescent indicia.
Tan,Chinh; Wood,Frederick F.; Stern,Miklos; Katz,Joseph; MacGregor,Shane; Mulla,Altaf, Portable instrument for electro-optically reading indicia and for projecting a bit-mapped image.
Swartz Jerome (Setauket NY) Shepard Howard M. (Great River NY) Barkan Eric F. (San Francisco CA) Krichever Mark J. (Hauppauge NY) Metlitsky Boris (Hauppauge NY) Barkan Edward (South Setauket NY) Adel, Portable laser diode scanning head having a focusing lens and an aperture.
Yavid,Dmitry; Breytman,Alex; Carlson,Bradley S.; Krichever,Mark; Patel,Mehul; Hatton,Edward; Dvorkis,Paul; Bianculli,Thomas D., System and method for auto focusing an optical code reader.
Pavlidis Theodosios (Setauket NY) Wang Ynjiun P. (Port Jefferson Station NY) Swartz Jerome (Old Field NY), Systems utilizing a high density two dimensional bar code symbology.
Fantone Stephen D. ; Figarella Luis A. ; Imrie David A ; McKinley Harry ; Plummer William T. ; Stern Howard ; Van Tassell Jon E., Variable focus optical system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.