Abstract: The invention relates to a system for reconstructing an image of an object. The system (100) comprises means (110) providing projection data acquired by an imaging unit, like a CT system, with an FOV, means (120) generating estimated image data indicative of a part of an object (20) located outside the FOV (210), means (130) estimating virtual projection data based on virtual settings of a virtual imaging unit comprising a virtual FOV, means (140) generating fused projection data by fusing the provided projection data with the virtual projection data, and means (150) reconstructing a final image. This allows basing the reconstruction on a complete set of projection information for the object and thus providing an image with a high image quality.

Abstract: A flanged sealing ring which is used to seal a pipe connection is produced from a material having a metal fraction distributed substantially homogeneously in the flanged sealing ring. The flanged sealing ring can be used in a device for detecting components of a flanged sealing ring in a pipeline system that includes a plurality of pipes, at least two of which are held against each other at a flange in such a way that sealing is effected by a flanged sealing ring. Using a metal detector and a gate for removing a metal-containing substance from the pipeline, which gate is arranged behind the metal detector in the conveying direction, the flanged sealing ring can then be detected, and therefore, when components of the flanged sealing ring detach, detection can be performed at the metal detector and discharging can be performed at the gate.

Abstract: A device (1) for imaging the interior of an optically turbid medium is provided. The device comprises a receptacle (3; 103) structured to accommodate an optically turbid medium for examination and an optically matching medium filling a space between an inner surface (6; 106) of the receptacle (3; 103) and the optically turbid medium. The device comprises at least one light source generating light to be coupled into the receptacle (3; 103) and at least one detector for detecting light emanating from the receptacle (3; 103). A coupling surface (10; 110) optically coupled to the inner surface (6; 106) of the receptacle and a coupling member (11; 111) optically coupled to the light source and the detector are provided.

Abstract: The invention relates to an image processing apparatus (1) comprising an image providing unit (2) for providing a first image of an object and a second image of the same object and a filtering unit (3) which filters the first image depending on a first degree of similarity between image values of the first image and on a second degree of similarity between image values of the second image. This allows filtering the first image depending on the likeliness that image values belong to the same part of the object, for example, to tissue or to bone material of the object, if the object is a human being or an animal, even if due to noise the image values of one of the first image and the second image are disturbed, thereby improving, for example, an edge preserving property of the filtering procedure.

Abstract: When distinguishing between fat and water in acquired MR data, a modified Dixon technique includes acquiring first and second signals Ii and I2, calculating the first and second components B and S of the signals I? and I2, where one of the first and second components corresponds to fat and the other corresponds to water, deriving two differential phase error candidates from them, and selecting a phase error candidate based on the assumption of smoothness of the disturbing field inhomogeneity. The exact determination of the absolute values of the water and fat components is then made by solving three signal equations for two variables that respectively correspond to water and fat, and is performed using for example a least square minimization with a Newton method.

Abstract: The invention relates to a projection values processing apparatus (1) for processing acquired projection values. A first image is reconstructed from acquired projection values under consideration of a reconstruction assumption by a reconstruction unit (13). A simulated projection values determining unit (14) determines simulated projection values by simulating a projection through the reconstructed first image under consideration of the reconstruction assumption, and inconsistency values are determined for the acquired projection values by an inconsistency determining unit (15), wherein an inconsistency value is indicative of a degree of inconsistency of a respective acquired projection value with the reconstruction assumption, by comparing the acquired projection values and the simulated projection values.

Abstract: Calender (1) for calendering a paper or board web (2), having at least one nip (3), which is formed between a heatable roll (4) and a mating element (5), a device (6) for producing a predetermined pressure in the nip (3), and a web treatment device (7) arranged upstream of the nip (3) and having two contact surfaces (9, 10) forming a treatment nip (8), one of which is a circulating contact surface (9) which is formed by a belt (14) circulating on guide rolls (11, 12, 13), the other contact surface (10) is formed by the circulating surface of the heatable roll (4), and the treatment nip (8) extends along an angle (15) of the wrap of the heatable roll (4), wherein, in order to increase the thermal efficiency of the transfer of heat, the circulating belt (14) uses a resilient surface to press the paper or board web (2) onto the heatable roll (4), and the guide rolls (11, 12, 13) control sectional forces of the circulating belt (14) in the treatment nip (8).

Abstract: A calender (1) for calendering a paper web (2), in particular made from paper suitable for gravure printing, having at least one roll stack which in each case has an upper and a lower end roll (4.1, 4.2) and intermediate rolls (5.1, 5.2, 5.3, 5.4), one of the two end rolls (4.1) delimits a first working nip (3) of the roll stack depending on the guidance of the paper web (2), and the rolls (4.1, 4.2, 5.1, 5.2, 5.3, 5.4) are hard rolls (4.1, 5.2, 5.4) and soft rolls (5.1, 5.3, 4.2) in order to form loadable working nips in the form of soft nips, the end roll (4.1) which delimits the first working nip (3) being a hard, heated roll, the diameter of which is greater than that of a hard, heated intermediate roll (5.2, 5.4) and the outer wall (9) of which forms one of two contact faces (9, 10) of a web treatment nip (8) which is arranged upstream of the first working nip (3), and the other contact face (10) being formed by a belt (14) which circulates on guide rolls (11, 12, 13).

Abstract: The invention relates to an image processing apparatus (1) comprising an image providing unit (2) for providing a first image of an object and a second image of the same object and a filtering unit (3) which filters the first image depending on a first degree of similarity between image values of the first image and on a second degree of similarity between image values of the second image. This allows filtering the first image depending on the likeliness that image values belong to the same part of the object, for example, to tissue or to bone material of the object, if the object is a human being or an animal, even if due to noise the image values of one of the first image and the second image are disturbed, thereby improving, for example, an edge preserving property of the filtering procedure.

Abstract: The invention relates to a projection values processing apparatus (1) for processing acquired projection values. A first image is reconstructed from acquired projection values under consideration of a reconstruction assumption by a reconstruction unit (13). A simulated projection values determining unit (14) determines simulated projection values by simulating a projection through the reconstructed first image under consideration of the reconstruction assumption, and inconsistency values are determined for the acquired projection values by an inconsistency determining unit (15), wherein an inconsistency value is indicative of a degree of inconsistency of a respective acquired projection value with the reconstruction assumption, by comparing the acquired projection values and the simulated projection values.

Abstract: A calender (1) for calendering a paper web (2), in particular made from paper suitable for gravure printing, having at least one roll stack which in each case has an upper and a lower end roll (4.1, 4.2) and intermediate rolls (5.1, 5.2, 5.3, 5.4), one of the two end rolls (4.1) delimits a first working nip (3) of the roll stack depending on the guidance of the paper web (2), and the rolls (4.1, 4.2, 5.1, 5.2, 5.3, 5.4) are hard rolls (4.1, 5.2, 5.4) and soft rolls (5.1, 5.3, 4.2) in order to form loadable working nips in the form of soft nips, the end roll (4.1) which delimits the first working nip (3) being a hard, heated roll, the diameter of which is greater than that of a hard, heated intermediate roll (5.2, 5.4) and the outer wall (9) of which forms one of two contact faces (9, 10) of a web treatment nip (8) which is arranged upstream of the first working nip (3), and the other contact face (10) being formed by a belt (14) which circulates on guide rolls (11, 12, 13).

Abstract: Calender (1) for calendering a paper or board web (2), having at least one nip (3), which is formed between a heatable roll (4) and a mating element (5), a device (6) for producing a predetermined pressure in the nip (3), and a web treatment device (7) arranged upstream of the nip (3) and having two contact surfaces (9, 10) forming a treatment nip (8), one of which is a circulating contact surface (9) which is formed by a belt (14) circulating on guide rolls (11, 12, 13), the other contact surface (10) is formed by the circulating surface of the heatable roll (4), and the treatment nip (8) extends along an angle (15) of the wrap of the heatable roll (4), wherein, in order to increase the thermal efficiency of the transfer of heat, the circulating belt (14) uses a resilient surface to press the paper or board web (2) onto the heatable roll (4), and the guide rolls (11, 12, 13) control sectional forces of the circulating belt (14) in the treatment nip (8).

Abstract: When distinguishing between fat and water in acquired MR data, a modified Dixon technique includes acquiring first and second signals Ii and I2, calculating the first and second components B and S of the signals I? and I2, where one of the first and second components corresponds to fat and the other corresponds to water, deriving two differential phase error candidates from them, and selecting a phase error candidate based on the assumption of smoothness of the disturbing field inhomogeneity. The exact determination of the absolute values of the water and fat components is then made by solving three signal equations for two variables that respectively correspond to water and fat, and is performed using for example a least square minimization with a Newton method.

Abstract: The invention concerns a calender which comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting on the rollers in the horizontal direction and measured in the roller bearings are minimized, so enabling slimmer rollers to be used.

Abstract: A device (1) for imaging the interior of an optically turbid medium is provided. The device comprises a receptacle (3; 103) structured to accommodate an optically turbid medium for examination and an optically matching medium filling a space between an inner surface (6; 106) of the receptacle (3; 103) and the optically turbid medium. The device comprises at least one light source generating light to be coupled into the receptacle (3; 103) and at least one detector for detecting light emanating from the receptacle (3; 103). A coupling surface (10; 110) optically coupled to the inner surface (6; 106) of the receptacle and a coupling member (11; 111) optically coupled to the light source and the detector are provided.

Abstract: Apparatus for forming an extended nip between a mating roll and a shoe roll for treating a product web, the shoe roll having a stationary carrier and a flexible roll shell which can rotate around the carrier and which, in the region of the extended nip, is supported on a hydrodynamically lubricated running surface of a press shoe guided on the carrier, for which purpose a device for applying lubricant to the inner side of the roll shell is provided, where, in an inlet region, the press shoe has a plurality of holes which are arranged transversely with respect to the machine running direction, are connected to a lubricant supply in order to be fed with lubricant and, for this purpose, end at the running surface, and the holes comprise restrictors whose resistance is designed for a pressure drop of 5 to 15 bar.

Abstract: The invention concerns a calender which comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting on the rollers in the horizontal direction and measured in the roller bearings are minimized, so enabling slimmer rollers to be used.

Abstract: A calender comprises a vertical stack of interlinked rollers driven individually by regulated electric motors. The regulation process acts on the distribution of the delivered power to the individual rollers such that the forces acting on the rollers in the horizontal direction and measured in the roller bearings are minimized allowing slimmer rollers to be used.

Abstract: Apparatus for forming an extended nip between a mating roll and a shoe roll for treating a product web, the shoe roll having a stationary carrier and a flexible roll shell which can rotate around the carrier and which, in the region of the extended nip, is supported on a hydrodynamically lubricated running surface of a press shoe guided on the carrier, for which purpose a device for applying lubricant to the inner side of the roll shell is provided, where, in an inlet region, the press shoe has a plurality of holes which are arranged transversely with respect to the machine running direction, are connected to a lubricant supply in order to be fed with lubricant and, for this purpose, end at the running surface, and the holes comprise restrictors whose resistance is designed for a pressure drop of 5 to 15 bar.

Abstract: Apparatus for forming an extended nip between a mating roll and a shoe roll for treating a product web, the shoe roll having a stationary carrier and a flexible roll shell which can rotate around the carrier and which, in the region of the extended nip, is supported on a hydrodynamically lubricated running surface of a press shoe guided on the carrier, for which purpose a device for applying lubricant to the inner side of the roll shell is provided, where, in an inlet region, the press shoe has a plurality of holes which are arranged transversely with respect to the machine running direction, are connected to a lubricant supply in order to be fed with lubricant and, for this purpose, end at the running surface, and the holes comprise restrictors whose resistance is designed for a pressure drop of 5 to 15 bar.