Device and method for detecting a plant against a background

A device for detecting a plant against a background includes a means (10) for providing a plurality of different photographs of the plant leaf against the background, the photographs differing in that image points of the different photographs which relate to the same location of the plant leaf are illuminated with different levels of brightness, a means (12) for selecting such image points, from the different photographs, whose levels of brightness are within a predetermined range, an image point of a first photograph being selected for a first location of the plant leaf, and an image point of a second, different photograph being selected for a different location of the plant leaf so as to obtain a representation of the plant leaf against the background, said representation being composed of and/or merged from different photographs, and a means (14) for segmenting the composite photograph so as to obtain a segment representation comprising the plant leaf without the background or the background ...

Device and method for quality controlling a body

DEVICE AND METHOD FOR PARAMETERIZING OF A PLANT

The invention relates to a device for the parameterisation of a plant (101), comprising a recorder (100) for recording a three-dimensional data set (102) of said plant which comprises not just the volume elements of uncovered plant elements but also the volume elements of plant elements which are covered by other elements, as well as a parameterisation unit (200) for the parameterisation of the three-dimensional data set in order to obtain plant parameters (201).

METHOD AND APPARATUS FOR THICKNESS MEASUREMENT

The material strength of extensive objects can be determined efficiently by using two distance measuring means, wherein a first distance measuring means determines the distance to a first main surface of the object and a second distance measuring means determines the distance to a second main surface object opposing the first main surface. If potential measurement errors due to the extensive geometry are avoided by determining a reference distance between the first distance measuring means and the second distance measuring means by a reference means, the thickness of the object between the first main surface and the second main surface can be determined with high accuracy and velocity.

Device and method for recording a plant

The invention relates to a device for recording a plant, containing a two-dimensional camera (10a) for recording a two-dimensional image of a plant leaf at a high two-dimensional resolution and a three-dimensional camera (10b) for recording a three-dimensional image of the plant leaf at a high three-dimensional resolution. The two-dimensional camera is, for example, a common high-resolution color camera, and the three-dimensional camera is, for example, a TOF camera. A processor (12) for combining the two-dimensional image and the three-dimensional image produces a three-dimensional representation of results at a higher resolution than the three-dimensional image of the 3-D camera, which representation can comprise, among other things, the edge of a leaf. The three-dimensional representation of results is used to characterize a plant leaf, for example, to calculate the area of the leaf or the orientation of the leaf, or to identify the leaf.

APPARATUS AND METHOD FOR PARAMETERIZING A PLANT

The invention relates to a device for the parameterisation of a plant (101), comprising a recorder (100) for recording a three-dimensional data set (102) of said plant which comprises not just the volume elements of uncovered plant elements but also the volume elements of plant elements which are covered by other elements, as well as a parameterisation unit (200) for the parameterisation of the three-dimensional data set in order to obtain plant parameters (201).

Device and method for producing images in digital dental radiography

DEVICE AND METHOD FOR RECORDING A PLANT

The invention relates to a device for recording a plant, containing a two-dimensional camera (10a) for recording a two-dimensional image of a plant leaf at a high two-dimensional resolution and a three-dimensional camera (10b) for recording a three-dimensional image of the plant leaf at a high three-dimensional resolution. The two-dimensional camera is, for example, a common high-resolution color camera, and the three-dimensional camera is, for example, a TOF camera. A processor (12) for combining the two-dimensional image and the three-dimensional image produces a three-dimensional representation of results at a higher resolution than the three-dimensional image of the 3-D camera, which representation can comprise, among other things, the edge of a leaf. The three-dimensional representation of results is used to characterize a plant leaf, for example, to calculate the area of the leaf or the orientation of the leaf, or to identify the leaf.

APPARATUS AND METHOD FOR MEASURING THE SURFACE OF A BODY

The invention relates to a sheet-of-light imaging method. A first (114) and a second measuring light projection onto a surface of an object (110) to be measured can be unambiguously identified by a camera (106) as the first (114) or second measuring light projection if a supporting device (108) operates the camera (102) and/or the measuring light projectors (102; 104) in such a manner that after every sheet-of-light imaging of the camera (106) either the first (114) or the second measuring light projection is visible for the camera (106). Unambiguous identification allows evaluation by means of one camera (106) of a plurality of measuring light projections that physically overlap and that are not exactly aligned in relation to each other.

METHOD AND APPARATUS FOR THICKNESS MEASUREMENT

The material strength of extensive objects can be determined efficiently by using two distance measuring means, wherein a first distance measuring means determines the distance to a first main surface of the object and a second distance measuring means determines the distance to a second main surface object opposing the first main surface. If potential measurement errors due to the extensive geometry are avoided by determining a reference distance between the first distance measuring means and the second distance measuring means by a reference means via X- radiation, the thickness of the object between the first main surface and the second main surface can be determined with high accuracy and velocity.

Process and device for radioscopically inspecting soldered points in electronic units

METHOD AND APPARATUS FOR THICKNESS MEASUREMENT

The material thickness of extended objects can be efficiently determined using two distance measuring devices which project a strip of measuring ligh t onto the object to be measured and operate as light section measuring devi ces. The first distance measuring device determines the distance from the fi rst main surface of the object, and the second distance measuring device det ermines the distance from the second main surface of the object, opposite to the first main surface. Potential measuring errors caused by variations of the distance between the two distance measuring devices, resulting from vibr ations or thermal deformations, are avoided by the additional use of an X-ra y device for determining the material thickness of the object on the basis o f the weakening of the X-radiation, caused by the object. The material thick nesss of the object between the first main surface and the second main surfa ce can be determined with a high level of precision and speed, on the basis of the ...

APPARATUS AND METHOD FOR MEASURING THE SURFACE OF A BODY

In a light-slit method, a first (114) and a second measurement light projection on a surface of an object (110) to be measured may be unambiguously identified as a first (114) or a second measurement light projection by a camera (106) when there is a support apparatus (108) operating the camera (106) and/or the measurement light projectors (102; 104) such that, in each light-slit recording of the camera (106), either the first (114) or the second measurement light projection is visible to the camera (106). The possibility of unambiguous identification allows evaluating several spatially overlapping and not exactly aligned measurement light projections by means of a camera (106).

DEVICE AND METHOD FOR DETECTING A PLANT

The invention relates to a device for recording a plant, con-taining a two-dimensional camera (10a) for recording a two-dimensional image of a plant leaf at a high two-dimensional resolution and a three-di-mensional camera (10b) for recording a three-dimensional image of the plant leaf at a high three-dimensional resolution. The two-dimensional ca-mera is, for example, a common high-resolution color camera, and the three-dimensional camera is, for example, a TOF camera. A processor (12) for combining the two-dimensional image and the three-dimensional image produces a three-dimensional representation of results at a higher resolution than the three-dimensional image of the 3-D camera, which re-presentation can comprise, among other things, the edge of a leaf. The three-dimensional representation of results is used to characterize a plant leaf, for example, to calculate the area of the leaf or the orientation of the leaf, or to identify the leaf.

Device and method for the parameterisation of a plant

The invention relates to a device for the parameterisation of a plant (101), comprising a recorder (100) for recording a three-dimensional data set (102) of said plant which comprises not just the volume elements of uncovered plant elements but also the volume elements of plant elements which are covered by other elements, as well as a parameterisation unit (200) for the parameterisation of the three-dimensional data set in order to obtain plant parameters (201).

Process and device for the automatic radioscopic quality control of foodstuffs

METHOD AND APPARATUS FOR THICKNESS MEASUREMENT

The material thickness of extended objects can be efficiently determined using two distance measuring devices which project a strip of measuring ligh t onto the object to be measured and operate as light section measuring devi ces. The first distance measuring device determines the distance from the fi rst main surface of the object, and the second distance measuring device det ermines the distance from the second main surface of the object, opposite to the first main surface. Potential measuring errors caused by variations of the distance between the two distance measuring devices, resulting from vibr ations or thermal deformations, are avoided by the fact that the strip of me asuring light of the two distance measuring devices also sweeps a reference object with a pre-determined thickness, such that the thickness of the objec t between the first main surface and the second main surface can be determin ed with a high level of precision and speed, on the basis of the measured di stances ...

DEVICE AND METHOD FOR DETECTING A PLANT AGAINST A BACKGROUND

A device for detecting a plant against a background includes a means (10) for providing a plurality of different photographs of the plant leaf against the background, the photographs differing in that image points of the different photographs which relate to the same location of the plant leaf are illuminated with different levels of brightness, a means (12) for selecting such image points, from the different photographs, whose levels of brightness are within a predetermined range, an image point of a first photograph being selected for a first location of the plant leaf, and an image point of a second, different photograph being selected for a different location of the plant leaf so as to obtain a representation of the plant leaf against the background, said representation being composed of and/or merged from different photographs, and a means (14) for segmenting the composite photograph so as to obtain a segment representation comprising the plant leaf without the background or the background ...

Device and method for evaluating a characteristic of an object

CAMERA AND METHOD FOR OPTICALLY RECORDING A SCREEN

Measuring device for contactless measurement of tyres

Method and Apparatus for Characterizing a Surface, and Method and Apparatus for Determining a Shape Anomaly of a Surface

In a method for characterizing a surface comprising a localized unevenness, a contour line of the surface is initially created as a function of a location variable ( 10 ). Subsequently, the localized unevenness is detected in the contour line ( 12 ) and eliminated from the contour line ( 14 ), so that an incomplete contour line results as a function of the location variable, which characterizes the surface without the localized unevenness. The incomplete contour line may be used to either be able to evaluate the surface without any localized points of unevenness, for example to determine the side wobble or height wobble of a tire, if the surface is a side flank and/or a running tread of a vehicle tire, or to classify the localized points of unevenness without any influence of the surface.

Apparatus and method for measuring the surface of a body

In a light-slit method, a first and a second measurement light projection on a surface of an object to be measured may be unambiguously identified as a first or a second measurement light projection by a camera when there is a support apparatus operating the camera and/or the measurement light projectors such that, in each light-slit recording of the camera, either the first or the second measurement light projection is visible to the camera. The possibility of unambiguous identification allows evaluating several spatially overlapping and not exactly aligned measurement light projections by means of a camera.