Sick Ag

Sick Ivp Ab

Romain Müller

Florian Schneider

Dirk Strohmeier

Mattias Johannesson

Pascal Schüler

Richard Nopper

Tobias Pontiggia

Marcel Hampf

Thorsten Falk

Hannes Ruf

Sascha Burghardt

Sebastian Tschuch

Christofer Roser

Thomas Russ

Katharina Bleicher

Johannes Rheinboldt

Johan Melander

Martin Hoegy

Julian Zimmer

Marcel Pfeifer

Jan Mahler

Pascal SCHÜLER

A camera device having an image sensor for recording an image and having a control and evaluation unit configured to subdivide the image into first subregions, to find a second subregion in the image with structures of interest, and to carry out a brightness adjustment of the image, wherein the control and evaluation unit is further configured to determine a respective brightness distribution for the first subregions, to determine a selection of those first subregions that correspond to the second subregion, to generate a common brightness distribution of the second subregion from the brightness distributions of the first subregions of the selection, and to use the common brightness distribution to carry out the brightness adjustment for the second subregion.

Recording and brightness adjustment of an image

A camera for detecting an object in a detection zone is provided that has an image sensor having a plurality of light reception elements for the generation of image data from received light from the detection zone), a reception optics having a focus adjustment unit for setting a focal position, with an angle of incidence of the received light on the image sensor changing on a change of the focal position, and a control and evaluation unit that is configured to set the focal position for a sharp recording of image data of the object, A sensitivity change of the capturing of the image data caused by the respective angle of incidence of the received light is compensated.

Camera and method for detecting an object

A camera based code reader is provided that has an image sensor for detecting image data having an optical code, a memory for storing image data, a first processing unit for transmitting the image data from the image sensor to the memory in an image data stream, and a second processing unit that is configured for a decoding in which the stored image data are evaluated to read the code content of the optical code, In this respect, the first processing unit is configured for at least one auxiliary function in which the first processing unit reads back at least some of the image data from the memory and writes a pre-processing result back to the memory; and in that the second processing unit is configured to invoke the auxiliary function of the first processing unit as required to assist the decoding.

Camera based code reader and method of reading optical codes

A method of reading an optical code is provided in which an image having the code is recorded, a first brightness adaptation of the image is carried out, a region of interest having the optical code is localized in the image, and the optical code in the region of interest is read. In this respect, the first brightness adaptation is a local brightness adaptation that is carried out in partial regions of the image still while further sections of the image are read; and the localization of the region of interest is based on image information of the image already processed by the first brightness adaptation.

Method of reading an optical code and optoelectronic code reader

A method for reading a one-dimensional optical code, wherein image data including the code are captured and a plurality of grayscale value profiles through the code are obtained from the image data, a black-and-white profile is formed from the grayscale value profiles by binarization, and the code content of the code is read from the black-and-white profile, wherein, for preparing the binarization, a sharpened grayscale value profile is first generated from the plurality of grayscale value profiles, the sharpened grayscale value profile having, as compared to the original image data, increased resolution, sharper edges, and more pronounced extrema, and the sharpened grayscale value profile is binarized to form the black-and-white profile.

Reading a one-dimensional optical code using a black-and-white profile formed from grayscale value profiles

A camera includes an image sensor having a first recording channel of a first sensitivity for recording first image data including first pixels and a second recording channel of a second sensitivity lower than the first sensitivity for recording second image data including second pixels. The first pixels and second pixels are associated with one another by capturing a same object area. A control and evaluation unit processing the image data is configured to suppress noise effects in the second image data using a noise suppression filter that assigns a new value to a respective considered second pixel based on second pixels in a neighborhood of the considered second pixel. The noise suppression filter takes the second pixels in the neighborhood into account with a weighting that depends on how similar first pixels associated with the second pixels are to the associated first pixel of the respective considered second pixel.

Camera and method for acquiring image data

A method of locating code image zones in an output image of a code bearing object (), 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.

Locating code image zones in an image of a code bearing object

A method for brightness and color correction of image data of a line camera is disclosed, wherein, for the detecting of image data with at least two line arrays of the line camera while illuminating a detection area of the line camera with an illumination module, a gray-scale image and at least two single-color images are recorded, and the image data is corrected with the help of a brightness function of the illumination module which is dependent on a line position of the line array and/or a distance of recorded objects. The brightness function is determined for the illumination module in advance and independent of the line camera and is stored in the illumination module, and the brightness function is read out by the line camera and used for the respective correction of the gray-scale image and the single-color images.

Brightness and color correction of image data of a line camera

An optoelectronic sensor for detecting objects in a monitored zone is provided, wherein the sensor comprises a laser scanner having a deflection unit rotatable about an axis of rotation for scanning the monitored zone with at least one scanning beam; a first distance measurement unit for determining 3D measurement points of the respective objects impacted by the scanning beam using a time-of-flight method; a panorama camera having a panorama optics and having an image sensor with a plurality of light reception elements for detecting picture elements; and a control and evaluation unit that is configured to fuse the 3D measurement points and the picture elements. In this respect, the optical axis of the panorama camera and the rotation axis coincide.

Optoelectronic sensor and method of detecting objects

A camera () for detecting objects () moving relative to the camera () in a direction of movement (), comprising an image sensor () for recording image data of the objects () in a camera field of view (), an optoelectronic distance sensor () using a time-of-flight method having a plurality of measurement zones () for measuring a plurality of distance values to the objects () in a distance measurement field of view (), and a control and evaluation unit () configured to find, by measuring distance values over a configuration time and evaluating the distance values and/or their change, a region where objects () move, and to automatically set a region of interest () for the distance sensor () within the distance measurement field of view () by determining an object region as the region where objects () move.

Detection of moving objects

A code scanning device for detecting an optical code on an object in a reading area, comprising a light transmitter for transmitting a reading beam, a deflection unit for periodically deflecting the reading beam over the reading area with a scanning frequency fscan, a light receiver for generating a received signal from the returning reading beam, a distance sensor for detecting a distance d from the object, and a control and evaluation unit configured to read a code content of the optical code on the basis of the received signal and to set the scanning frequency fscan as a function of the distance d.

Detection of an optical code

A camera () is provided for the detection of objects () moved through a detection zone that has an image sensor () for recording image data, a reception optics () having an adjustable diaphragm (), and a control and evaluation unit () to read the image data and to set the diaphragm (), In this respect, the control and evaluation unit () is furthermore configured to set the diaphragm () per object () such that the object () is recorded in a depth of field range.

Camera and method for detecting objects moved through a detection zone

Image sensor circuitry comprising an image sensor and method for supporting reduction of laser speckle effects in a digital image. Per each pixel position (x, y) of at least a subregion of the image sensor, the image sensing circuitry: Assigns to said pixel position (x,y) a predefined pixel window (w) comprising said pixel position (x,y) and one or more of its closest neighboring pixel positions. Obtains first pixel values for each pixel located within said predefined pixel window (w), said first pixel values resulting from the same exposure and corresponding to sensed light from this exposure. Combines the obtained first pixel values into a single, second pixel value according to a predefined combination function. The digital image is provided based on the second pixel values.

Image sensor circuitry for reducing effects of laser speckles

A camera for detecting an object in a detection zone is provided that has an image sensor for recording image data, a reception optics having a focus adjustment unit for setting a focal position, a distance sensor for measuring a distance value from the object, and a control and evaluation unit connected to the distance sensor and the focus adjustment unit to set a focal position in dependence on the distance value, and to determine a distance value with the distance sensor via a variable measurement duration that is predefined in dependence on a provisional distance value such that a measurement error of the distance value and thus, on a recording of image data of the object, a focus deviation of the set focal position from an ideal focal position remains small enough for a required image sharpness of the image data.

Camera and method for detecting image data

The present invention relates to a light line triangulation apparatus with

Growing community of inventors

Waldkirch, Germany

Romain Müller