Abstract: A method of printing on an inkjet printer including a plurality of overlapping jetting modules includes analyzing image data within a stitch area to designate white pixels and non-white pixels. For rows where the stitch area includes white pixels, a hard stitch boundary is defined within the stitch area where image pixels to the left of the hard stitch boundary are to be printed using a left jetting module and image pixels to the right of the hard stitch boundary are to be printed using a right jetting module. For image regions where the rows of image pixels within the stitch area include only non-white pixels, a soft-stitching path is defined through the image region, and a fading function is used to gradually transition from printing image pixels with the left jetting module to printing image pixels with the right jetting module in a transition zone around the soft-stitching path.

Abstract: Disclosed is a computer-implemented method for augmented reality spinal rod planning and bending for navigated spine surgery. A proposed spinal rod is determined that is a virtual model of a spinal rod with a desired shape. The proposed spinal rod is determined based on acquired positions of a plurality of spinal screws disposed on a spine of a patient. The spinal screws are configured for receiving a spiral rod interconnecting the plurality of spinal screws. Furthermore, the spinal rod itself is calibrated for tracking by a medical navigation device. This allows displaying the proposed spinal rod by an augmented reality device, thereby overlaying the tracked spinal rod with the proposed spinal rod. Thus, the proposed method inter alia provides the surgeon with improved information about the bending state of the spinal rod.

Abstract: The disclosed method encompasses moving an object such as a medical device or instrument to a desired spatial position based on tracking data provided by a tracking system. Once it is determined from the tracking data that the object has reached the desired spatial position, a projection image is generated, which is registered with the desired spatial position and shows the object. Based on the image data, it is possible to verify whether the object has actually reached the desired position, or whether the object's actual position deviates from the desired position due to errors or inaccuracies, allowing measures to be taken to compensate for these errors or inaccuracies.

Abstract: The disclosed method encompasses moving an object such as a medical device or instrument to a desired spatial position based on tracking data provided by a tracking system. Once it is determined from the tracking data that the object has reached the desired spatial position, a projection image is generated, which is registered with the desired spatial position and shows the object. Based on the image data, it is possible to verify whether the object has actually reached the desired position, or whether the object's actual position deviates from the desired position due to errors or inaccuracies, allowing measures to be taken to compensate for these errors or inaccuracies.

Abstract: A medical tracking method for tracking a spatial position of a medical instrument within a medical workspace including an anatomical structure of a patient. The method includes: acquiring, using a first camera targeted on the medical workspace, instrument position data describing a spatial position of the medical instrument with respect to a first camera; acquiring, using a second camera and at least one optical tracking marker that is adapted to be recognized by the second camera, camera position data describing a spatial position of the first camera with respect to the anatomical structure, determining, based on the instrument position data and the camera position data, tracking data describing the spatial position of the medical instrument with respect to the anatomical structure; and tracking the spatial position of the medical instrument within the medical workspace using the tracking data.

Abstract: A medical tracking method for tracking a spatial position of a medical instrument within a medical workspace including an anatomical structure of a patient. The method includes: acquiring, using a first camera targeted on the medical workspace, instrument position data describing a spatial position of the medical instrument with respect to a first camera; acquiring, using a second camera and at least one optical tracking marker that is adapted to be recognized by the second camera, camera position data describing a spatial position of the first camera with respect to the anatomical structure; determining, based on the instrument position data and the camera position data, tracking data describing the spatial position of the medical instrument with respect to the anatomical structure; and tracking the spatial position of the medical instrument within the medical workspace using the tracking data.

Abstract: The invention relates to a method of relating a position (pos(selected)) of an anatomical structure (3) and a position of an image feature representing the anatomical structure in a medical image (11), the method being constituted to be executed by a computer and comprising: a) acquiring information about the position of a medical imaging apparatus (1) at the beginning (pos(start)) and at the end (pos(end)) of acquiring medical image information describing a medical image (11) of at least a part of a patient's body (2) comprising the anatomical structure (3), wherein the medical imaging apparatus (1) is moved while it is used for acquiring the medical image information; b) acquiring imaging information about a relationship between the movement of the medical imaging apparatus and the acquisition of the medical image information; c) acquiring, based on the position of the medical imaging apparatus at the beginning (pos(start)) and at the end (pos(end)) of acquiring the medical image information, information ab

Abstract: A system and method of determining a measure of accuracy of a registration mapping combining data indicative of spatial positions in a three-dimensional operating space and imaging data acquired with an imaging device located in a position and orientation in operating space is provided. A phantom is brought into a first pose, wherein the phantom is at least in partial view of the imaging device located in a second pose, the phantom comprising a marker assembly that can be imaged by the imaging device. Image data of the marker assembly of the phantom is acquired with the imaging device in the second pose. Imaged markers in the acquired image data of the marker assembly are located, and mapped markers are obtained by submitting spatial positions of the markers in the marker assembly of the phantom in the first pose to the registration mapping using the second pose as the imaging pose.

Abstract: The invention relates to a method of relating a position (pos(selected)) of an anatomical structure (3) and a position of an image feature representing the anatomical structure in a medical image (11), the method being constituted to be executed by a computer and comprising: a) acquiring information about the position of a medical imaging apparatus (1) at the beginning (pos(start)) and at the end (pos(end)) of acquiring medical image information describing a medical image (11) of at least a part of a patient's body (2) comprising the anatomical structure (3), wherein the medical imaging apparatus (1) is moved while it is used for acquiring the medical image information; b) acquiring imaging information about a relationship between the movement of the medical imaging apparatus and the acquisition of the medical image information; c) acquiring, based on the position of the medical imaging apparatus at the beginning (pos(start)) and at the end (pos(end)) of acquiring the medical image information, information ab

Abstract: The present invention relates to a method for segmenting a three-dimensional image data set, comprising the steps of: a) providing a three-dimensional image data set of a body structure, which is to be segmented, and a generic model of the body structure; b) generating synthetic two-dimensional image data sets on the basis of the three-dimensional image data set of the body structure provided in a); and c) pre-positioning the generic model in relation to the three-dimensional image data set of the body structure provided in a); and e) generating a three-dimensional model of the body structure by fitting the generic model to the synthetic two-dimensional image data sets of the body structure, generated in step b).

Abstract: The present application relates to a method for registering two-dimensional image data, comprising the steps of: providing a registered three-dimensional image data set of an object under examination; providing a two-dimensional image data set of the object under examination which is to be registered; generating synthetic two-dimensional image data sets of the object under examination from the three-dimensional image data set, wherein the synthetic two-dimensional image data sets to be generated are parameterized with regard to parameters which describe the two-dimensional image data set to be registered; comparing the parameterized synthetic two-dimensional image data sets with the two-dimensional image data set to be registered, and finding the parameterized synthetic two-dimensional image data set having the greatest similarity to the two-dimensional image data set to be registered; on the basis of this, ascertaining the spatial relationship between the two-dimensional image data set to be registered an

Abstract: The present invention relates to a method for registering a two-dimensional image data set, generated using fan-shaped imaging rays, in the medical field, wherein the method comprises: processing the two-dimensional image data on the basis of a spatial transformation function which describes a spatial relative position between points which have been imaged using a fan-shaped imaging ray, and the imaging apparatus used for imaging; and processing the two-dimensional image data on the basis of an imaging transformation function which describes an imaging function of the imaging apparatus used for generating the two-dimensional image data set, which describes a spatial relationship between the actual spatial position of imaged points and their imaging location in a recording.

Abstract: A marker navigation system for detecting and displaying locations of at least two reference devices, each reference device attachable to a corresponding object includes a detection device for detecting signals emitted from the at least two reference devices, a display device for displaying the locations of the at least two reference devices and/or the objects attached to the at least two reference devices based in accordance with display signals; and a data processing device.

Abstract: The present application relates to an x-ray marker device comprising an arrangement of x-ray markers, wherein the arrangement defines straight lines which are referred to as device straight lines, wherein at least some of the device straight lines, which are referred to as pyramid straight lines, comprise portions which define edges of at least one pyramid.

Abstract: A medical x-ray detection device includes an x-ray detector operable to detect the presence of x-ray radiation in a medical environment, and a signal emitter operatively coupled to said x-ray detector. The signal emitter includes at least one active light-emitting signal device, wherein the signal emitter is operative to emit a signal corresponding to the presence of x-ray radiation.

Abstract: A camera system includes at least two camera units, wherein each camera unit comprises at least one detection element for detecting an optical signal. At least one of the at least two camera units includes at least one element operative to enable detection of light in at least two different spectral ranges.

Abstract: The present application relates to an x-ray marker device comprising an arrangement of x-ray markers, wherein the arrangement defines straight lines which are referred to as device straight lines, wherein at least some of the device straight lines, which are referred to as pyramid straight lines, comprise portions which define edges of at least one pyramid.

Abstract: The present invention relates to a method for registering a two-dimensional image data set, generated using fan-shaped imaging rays, in the medical field, wherein the method comprises: processing the two-dimensional image data on the basis of a spatial transformation function which describes a spatial relative position between points which have been imaged using a fan-shaped imaging ray, and the imaging apparatus used for imaging; and processing the two-dimensional image data on the basis of an imaging transformation function which describes an imaging function of the imaging apparatus used for generating the two-dimensional image data set, which describes a spatial relationship between the actual spatial position of imaged points and their imaging location in a recording.

Abstract: A method for optimizing the interpretation of analog image signals or sequences of image signals output by medical image recording devices. The correlation of consecutively recorded image signals is tested and, based on the test, the image signals are identified as depicting the same or different images. More specifically, if the correlation is not less than a particular threshold value, it is established that the image signals depict the same image. If the correlation is less than a particular threshold value, it is established that the image signals possibly depict different images. Further, the threshold value is dynamically adjusted if the correlation has changed.

Abstract: The present invention relates to a method for segmenting a three-dimensional image data set, comprising the steps of: a) providing a three-dimensional image data set of a body structure, which is to be segmented, and a generic model of the body structure; b) generating synthetic two-dimensional image data sets on the basis of the three-dimensional image data set of the body structure provided in a); and c) pre-positioning the generic model in relation to the three-dimensional image data set of the body structure provided in a); and e) generating a three-dimensional model of the body structure by fitting the generic model to the synthetic two-dimensional image data sets of the body structure, generated in step b).