公开(公告)号：US08910866B2

公开(公告)日：2014-12-16

申请号：US13922570

申请日：2013-06-20

Applicant: Sick AG

Inventor： Pascal Schuler ,  Dietram Rinklin ,  Sascha Burghardt

IPC: G06K5/00 ,  G06T5/00 ,  G06K7/14

CPC classification number: G06K5/00 ,  G06K7/146 ,  G06K7/1478 ,  G06T5/006 ,  G06T5/008

Abstract: A code reader (10) having an image sensor (20) for the generation of images of a detection zone (12) resolved into pixels is provided having a decoding unit (24) in order to identify code regions (14) in the images and to readout their coded information, as well as having a verification unit (28) for evaluating the code quality in accordance with predefined criteria. In this connection the verification (28) is configured to initially generate a normalized verification image of the code from the code regions (14) by means of image processing for the verification.

Abstract translation: 提供了具有用于生成分辨为像素的检测区域（12）的图像的图像传感器（20）的代码阅读器（10），具有解码单元（24），以识别图像中的代码区域（14），以及 读取其编码信息，以及具有用于根据预定标准评估代码质量的验证单元（28）。 在这方面，验证（28）被配置为通过用于验证的图像处理来最初从代码区域（14）生成代码的归一化验证图像。

公开(公告)号：US12165001B2

公开(公告)日：2024-12-10

申请号：US18108243

申请日：2023-02-10

Applicant: SICK AG

Inventor： Pascal Schüler ,  Christofer Roser ,  Thorsten Falk ,  Sascha Burghardt ,  Romain Müller

IPC: G06K7/14

Abstract: A method of locating code image zones in an output image of a code bearing object (14), wherein first candidates for code image zones are determined in a first segmentation process using a process of classical image processing without machine learning and second candidates for code image zones are determined in a second segmentation process using machine learning, with the first and second candidates being fused to locate the code image zones.

公开(公告)号：US11250228B2

公开(公告)日：2022-02-15

申请号：US17158296

申请日：2021-01-26

Applicant: SICK AG

Inventor： Sascha Burghardt ,  Jean Stawiaski

IPC: G06K7/14 ,  G06T7/70 ,  G06K9/32

Abstract: A method for reading optical codes (12) with distortions caused by an uneven background of the code (12), the method comprising the steps of acquiring image data including the code (12), locating a region including the code (12) in the image data, and reading the code content of the code (12) from image data in the region, wherein the code (12) is read from image data at sampling points arranged in a sampling pattern corresponding to the distortions.

公开(公告)号：US09270892B2

公开(公告)日：2016-02-23

申请号：US13908626

申请日：2013-06-03

Applicant: SICK AG

Inventor： Sascha Burghardt ,  Dietram Rinklin ,  Pascal Schuler ,  Stephan Walter

IPC: H04N3/14 ,  H04N5/335 ,  H04N5/235 ,  G06K7/10 ,  G06K7/14

CPC classification number: H04N5/235 ,  G06K7/10722 ,  G06K7/1417

Abstract: An optoelectronic device (10) is provided having an image sensor (20) for generating pixel images of a detection area (12) and a brightness correction unit (28) configured to modify brightness values of the pixels with a correction factor (Hmul) to obtain a more homogeneously illuminated image. A respective correction factor (Hmul) is calculated for individual pixels or groups of pixels from a perspective transformation (M) which converts geometries of an object plane (34) in the detection area (12) into geometries of the image plane (32).

公开(公告)号：US09047519B2

公开(公告)日：2015-06-02

申请号：US13796746

申请日：2013-03-12

Applicant: Sick AG

Inventor： Pascal Schuler ,  Dietram Rinklin ,  Sascha Burghardt

IPC: G06K7/00 ,  G06K7/10 ,  G06K7/14 ,  G06T7/00

CPC classification number: G06K7/0095 ,  G06K7/146 ,  G06T7/80

Abstract: An optoelectronic apparatus is set forth for measuring structural sizes or object sizes which has a light reception element for converting received light into image data, a reception optics arranged before the light reception element as well as an evaluation unit which is configured to identify structures or objects in the image data, to determine its dimensions in picture elements and to convert the dimensions into absolute, in particular metric, units of length with reference to a scaling factor, wherein the scaling factor can be determined in a calibration procedure. In this respect, the evaluation unit is configured to locate code regions in the image data and to read out code information from the code regions and to calculate the scaling factor during the calibration procedure from dimensions of a calibration code whose code information includes a size indication for the calibration code in the absolute units of length.

Abstract translation: 提出了一种用于测量具有将接收光转换为图像数据的光接收元件的结构尺寸或物体尺寸的光电装置，布置在光接收元件之前的接收光学器件以及被配置为识别结构或物体的评估单元 在图像数据中，确定其在图像元素中的尺寸并且将参考缩放因子将尺寸转换成绝对的，特别是度量的长度单位，其中缩放因子可以在校准过程中确定。 在这方面，评估单元被配置为定位图像数据中的代码区域并从代码区域读出代码信息，并且在校准过程期间从其代码信息包括尺寸指示的校准代码的维度计算缩放因子 用于校准代码的绝对单位长度。