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1. 发明公开

EP4212859A1 INSPECTION OF DRINKING STRAW 有权
公开(公告)号：EP4212859A1
公开(公告)日：2023-07-19
申请号：EP22151640.4
申请日：2022-01-14
申请人： Sick IVP AB
发明人： MURHED, Anders , LARSSON, Mathilda , HÖGBERG, Nils
IPC分类号： G01N21/88 , G01N21/95 , G01N21/954
摘要： Method and arrangements for inspection of a drinking straw (101; 201) involving use of the drinking straw (101; 201) as a light guide for inspection of a sidewall (102; 202) of the drinking straw (101; 201) based on light leakage of guided light out from the drinking straw (101; 201) via the sidewall (102), such a through a damage (204) in the sidewall (102). It is illuminated (601), by means of one or more light sources (123), a first portion (131) of the drinking straw (101; 201) so that at least some of the light (127) on the first portion (131) is transmitted through a sidewall (102; 202) of the drinking straw (101; 201) into the drinking straw (101), and is guided therein. It is provided (602) one or more digital images (241) imaging another, second, portion (133; 233) of the drinking straw (101; 201) during said illumination. A light pattern captured by said one or more digital images (241) is analysed (603), corresponding to light escape of the internally reflected light out from the second portion (133) of the drinking straw (101; 201) via a sidewall (102; 202) of the drinking straw (101; 201). The damage (204) may be detected as a local spot (243) of image data discrepancy.

2. 发明公开

EP3734973A1 METHOD AND ENCODER RELATING TO ENCODING OF PIXEL VALUES TO ACCOMPLISH LOSSLESS COMPRESSION OF A DIGITAL IMAGE 有权
公开(公告)号：EP3734973A1
公开(公告)日：2020-11-04
申请号：EP19172426.9
申请日：2019-05-02
申请人： Sick IVP AB
发明人： HINNERSON, Martin , JOHANNESSON, Mattias
IPC分类号： H04N19/11 , H04N19/13 , H04N19/14 , H04N19/182 , H04N19/436 , H04N19/593 , H04N19/88 , H04N19/91 , H04N19/93
摘要： Encoder (131; 800) and method for encoding of pixel values of a digital image comprising multiple lines of pixels to accomplish lossless compression of the digital image. For each of said multiple lines the encoder (131; 800) obtains (701) unencoded pixels values of the line. Further, for each of said multiple lines, the encoder (131; 800) determines (702), for each of one or more pixels of the line, which encoding to be used for encoding of the unencoded pixel value of the pixel (x) in said lossless compression of the digital image. The determination being based on how said unencoded pixel value relates to unencoded pixel values of other, closest neighboring pixels (N1, N2) of said line.

3. 发明授权

EP3114432B1 IMAGE SENSING DEVICE AND MEASURING SYSTEM FOR PROVIDING IMAGE DATA AND INFORMATION ON 3D-CHARACTERISTICS OF AN OBJECT 有权
标题翻译：用于提供图像数据和图像的三维特性的信息的图像传感装置和测量系统
公开(公告)号：EP3114432B1
公开(公告)日：2017-11-22
申请号：EP14708850.4
申请日：2014-03-05
申请人： Sick IVP AB
发明人： JOHANNESSON, Mattias
IPC分类号： G01B11/25
CPC分类号： G06K9/2054 , G01B11/25 , G01B11/2518 , G01B2210/52 , G06T5/50 , G06T7/593 , G06T2207/10021 , G06T2207/10144 , H04N13/204 , H04N13/271
摘要： An image sensing device (130) for providing image data relating to an image of an object (120; 121; 501) comprises an image sensor (131) having a sensor area (132) for sensing light. The image sensing device (130) defines (401) Regions Of Interest, “ROIs”, (301 a-303a) in the sensor area (132). Each ROI (301 a; 302a; 303a) partially overlaps one or more of the other ROIs (301 a-303a). The ROIs (301 a-303a) are exposed individually to light from the object. The image sensing device (130) reads (403) partial image data belonging to groups respectively associated with the exposed ROIs (301 a-303a) and resulting from sensed light therein. Image data relating to the image of the object is provided based on a combination of the read partial image data.

4. 发明授权

EP2063220B1 Optical triangulation 有权
标题翻译：光学三角测量
公开(公告)号：EP2063220B1
公开(公告)日：2017-06-28
申请号：EP07120778.1
申请日：2007-11-15
申请人： Sick IVP AB
发明人： Johannesson, Mattias , Turbell, Henrik , Benderius, Björn
IPC分类号： G01B11/25 , G01S17/46
CPC分类号： G01S7/481 , G01B11/2522 , G01S17/42 , G01S17/48 , G01S17/50 , G01S17/89

5. 发明公开

EP4235563A1 METHOD AND ARRANGEMENTS FOR REMOVING ERRONEOUS POINTS FROM A SET OF POINTS OF A 3D VIRTUAL OBJECT PROVIDED BY 3D IMAGING 有权
公开(公告)号：EP4235563A1
公开(公告)日：2023-08-30
申请号：EP22158997.1
申请日：2022-02-25
申请人： Sick IVP AB
发明人： EDHAMMER, Jens , JOHANNESSON, Mattias , WRANGSJÖ, Andreas , ÖBERG, Andreas
IPC分类号： G06T5/00 , G01B11/25 , G06T7/521
摘要： Method and arrangements for removing erroneous points from a set of points (355-1..355-15) of a three dimensional, 3D, virtual object provided by 3D imaging of a corresponding real world object (320) by means of a camera (330) with image sensor (331). Said set of points (355-1..355-15) is obtained (401). It is identified (403), for respective point (355), conflicting points, if any, in the set. A conflicting point is a point of the set that cannot validly coexist with the respective point (355) according to predefined one or more criteria. It is removed (404), from the set, based on said identification, one or more points of the set that have been involved in conflicts a greater number of times than other points of the set involved in conflicts. A respective point (355) of the set is considered involved in a conflict each time there is identified a conflicting point in the set for the respective point and/or each time the respective point itself (355) is identified as a conflicting point to another point of the set.

6. 发明公开

EP3779882A1 PROVIDING INTENSITY PEAK POSITION IN IMAGE DATA FROM LIGHT TRIANGULATION IN A THREE-DIMENSIONAL IMAGING SYSTEM 有权
公开(公告)号：EP3779882A1
公开(公告)日：2021-02-17
申请号：EP19192183.2
申请日：2019-08-16
申请人： Sick IVP AB
发明人： JOHANNESSON, Mattias , MALMGREN, Christoffer
IPC分类号： G06T7/73 , G06T7/521 , G06T7/13 , G01B11/25
摘要： Provision of a position of an intensity peak (305, 405, 505, 605) in image data produced by an image sensor (131) in response to light sensed by the image sensor (131) after the light has reflected on an object as part of light triangulation performed in a three-dimensional imaging system (100). Devices (100, 130, 131, 200, 201, 1200) are configured to obtain (1101) the image data and determine (1102) which of first and other, second, peak characteristics that the intensity peak is associated with. The position is provided (1103) according to a first computing algorithm if the intensity peak is associated with the first peak characteristics and according to a different, second computing algorithm if the intensity peak is associated with the second peak characteristics.

7. 发明公开

EP3109823A1 METHOD AND ARRANGEMENTS FOR ESTIMATING ONE OR MORE DOMINATING ORIENTATIONS IN A DIGITAL IMAGE 审中-公开
标题翻译：方法和评估的一个或多个主方向安排的数字图像
公开(公告)号：EP3109823A1
公开(公告)日：2016-12-28
申请号：EP15173160.1
申请日：2015-06-22
申请人： Sick IVP AB
发明人： FRIMAN, Ola
IPC分类号： G06T7/00
CPC分类号： G06K7/1417 , G06K7/1456 , G06K9/481 , G06K9/52 , G06T7/73 , G06T7/77 , G06T2207/30204
摘要： A method and arrangements for estimating one or more dominating orientations (α dom ) in at least a part (201; 301) of a digital image (200; 300; 600). Representative angles (α 1.. α N ) representing angles of gradient vectors (g 1 ..g N ) for pixels (1..N) of said at least part are obtained (401). It is further obtained (402) a target number (n) of dominating orientations. It is also obtained (404) a first sum (a) comprising added sine factors based on computed sines. The sines are computed for angles that correspond to said representative angles (α 1.. α N ) multiplied with two times the target number (n). Further it is obtained (405) a second sum (b) comprising added cosine factors based on computed cosines for the same angles that said sine were computed for. Said one or more dominating orientations (α dom ) are then estimated (406) based on the first sum (a), the second sum (b) and the target number (n).
摘要翻译：的数字图像的;（301 201），一种用于在至少一部分估计一个或多个支配取向（±DOM）方法和安排（200; 300; 600）。代表性的角度（±1±.. N）表示用于像素（1..N）梯度矢量（克1 ..G N）的角度，所述至少一部分被获得（401）。进一步获得（402）的目标数量（多个）支配取向的。因此，获得（404）的第一总和（a）包含加入基于计算正弦正弦因素。正弦值被计算为角并具有两个倍增目标次数（一个或多个）对应于所述代表角度（±1±.. N）。此外，优选获得（405）的第二和（b）包含附加基于针对这就是说正弦计算了相同的角度计算的余弦余弦因子。然后将所述一个或多个支配取向（±DOM）估计基于第一总和（406）（a）中，所述第二总和（b）和目标数（n）。

8. 发明授权

EP2141448B1 Calibration of a profile measuring system 有权
标题翻译：轮廓测量系统的标定
公开(公告)号：EP2141448B1
公开(公告)日：2011-01-05
申请号：EP08159722.1
申请日：2008-07-04
申请人： Sick IVP AB
发明人： Turbell, Henrik , Andersson, Robert
IPC分类号： G01B11/25 , G01B21/04 , G06T7/00
CPC分类号： G01B11/2504 , G01B21/042 , G06T5/006

9. 发明公开

EP1738136A1 MEASURING APPARATUS AND METHOD IN A DISTRIBUTION SYSTEM 有权
标题翻译： MESSVORRICHTUNG在EINEM VERTEILSYSTEM中的超越
公开(公告)号：EP1738136A1
公开(公告)日：2007-01-03
申请号：EP05722213.5
申请日：2005-03-15
申请人： Sick IVP AB
发明人： JOHANNESSON, Mattias , NILSSON, Fredrik , GUNNARSSON, Karl-Gunnar
IPC分类号： G01B11/04
CPC分类号： G01B11/046
摘要： The present invention relates to the field of measuring apparatuses in distribution systems allowing for measuring presence, position and/or shape of an object placed on a carrier and a method for such measuring. The measuring apparatus comprises at least one light source arranged to illuminate said object and said carrier with incident light; at least one sensor placed on a predetermined distance from said at least one light source and arranged to repeatedly measure said object and said carrier by detecting reflected light from said object and said carrier when said carrier is moved in said direction of movement and to convert the detected light into electrical signals; an image-processing unit arranged to use the electrical signals and obtain a three-dimensional sub-image of each of the measurements of said object and said carrier and to obtain a three-dimensional image of said object and said carrier from one or more of said obtained sub-images; and, a calculating unit arranged to determine the presence, position and/or shape of said object on said carrier from said three-dimensional image.
摘要翻译：本发明涉及能够测量放置在载体上的物体的存在，位置和/或形状的分配系统中的测量装置领域和这种测量方法。所述测量装置包括至少一个光源，所述至少一个光源布置成用入射光照射所述物体和所述载体; 至少一个传感器与所述至少一个光源放置在预定距离上，并被布置成当所述载体在所述移动方向上移动时，通过检测来自所述物体和所述载体的反射光来反复测量所述物体和所述载体，将光检测成电信号; 图像处理单元，被配置为使用所述电信号并获得所述对象和所述载体的每个测量值的三维子图像，并从所述对象和所述载体的一个或多个获得所述对象和所述载体的三维图像表示获得的子图像; 以及计算单元，被布置成从所述三维图像确定所述载体上的所述物体的存在，位置和/或形状。

10. 发明公开

EP4379662A1 PROVISION OF REAL WORLD AND IMAGE SENSOR CORRESPONDENCE POINTS FOR USE IN CALIBRATION OF AN IMAGING SYSTEM FOR THREE DIMENSIONAL IMAGING BASED ON LIGHT TRIANGULATION 审中-实审
公开(公告)号：EP4379662A1
公开(公告)日：2024-06-05
申请号：EP22211198.1
申请日：2022-12-02
申请人： Sick IVP AB
发明人： RYDSTRÖM, Daniel
IPC分类号： G06T7/521 , G06T7/80
CPC分类号： G06T7/80 , G06T7/521 , G06T2207/1001620130101
摘要： Method and device(s) for provision of a pair of real world and image sensor correspondence points for use in calibration of an imaging system (405) for three dimensional imaging based on light triangulation. Said real world point (514-1; 529-1) being provided (801) as a first virtual intersection between a first real world line (512a; 527a) and a second real world line (512b; 527b). Said image sensor point (544-1; 554-1) being provided (802) as a second virtual intersection between a first image line (542a; 552a) and a second image line (542b; 552b). A first image (540a; 550a) by the imaging system comprises captured light that images the first real world line (512a; 527a) and a second image (540b; 550b) by the imaging system comprises captured light that images the second real world line (512b; 527b). The first image line (542a; 552a) corresponds to positions of intensity peaks of said captured light in the first image (540a; 550a) and the second image line (542b; 552b) corresponds to positions of intensity peaks of said captured light in the second image (540b; 550b).

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