Abstract: A scanning image generation apparatus is provided and includes an image information acquisition unit for scanning grid points of an object and for acquiring, on the basis of the scanned grid points, items of image information that represent an image. An evaluation unit has a software routine for evaluating at least some of the items of image information and for classifying the items of image information as usable or unusable on the basis of the evaluation. The apparatus also includes a release unit which enables an image recording if the evaluated items of image information are classified as usable by the evaluation unit. The scanning image generation apparatus moreover includes a memory with at least one quality profile stored thereon. The quality profile contains a person-specific software routine for evaluating and classifying the items of image information. The software routine is loadable into the evaluation unit.

Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.

Abstract: A visualization system includes an optical recording unit configured to capture optical signals characterizing at least one partial region of an object, a 3D reconstruction unit configured to ascertain spatial data sets, which describe the partial region of the object, based on the captured optical signals, a hologram computational unit configured to ascertain control data for producing a holographic presentation based on the spatial data sets of the partial region of the object, and a visualization unit configured to visualize a holographic presentation of the at least one partial region of the object for a user of the visualization system based on the control data. In addition, a suitable method for producing holographic presentations from optical signals is provided.

Abstract: A method for operating a head-wearable presentation apparatus is provided. The method comprises the steps of: capturing data that are representative of at least one state variable of the head of a person wearing the head-wearable presentation apparatus, evaluating the captured data in order to determine the at least one state variable of the head, and modifying a degree of transparency of at least one playback arrangement of the head-wearable presentation apparatus if the at least one state variable of the head corresponds to a predetermined state variable.

Abstract: An eye surgery surgical system includes a device for displaying a relative position of a section of a surgery object in a 3D reconstruction of a region of an eye, a device for continuously providing at least two data records relating to at least partly overlapping portions of the region of the eye and of the section of the surgery object to a computer, a computer program for continuously ascertaining the relative position of the section of the surgery object and continuously ascertaining the 3D reconstruction of the eye from the data records provided. The program includes a first routine for continuously ascertaining the relative position of the section of the surgery object and the 3D reconstruction of the region of the eye from the data records provided via a registration method and a second routine for adapting the registration method based on a criterion.

Abstract: A method of operating a surgical microscope includes detecting a position of a user, and setting a rotation angle of a camera about its main axis such that it is between a first angle and a second angle. The first angle is the rotation angle required to display a first straight object as a vertical line, and the second angle is the rotation angle required to display a second straight object as a horizontal line. The first object extends along a first line arranged in a vertical plane containing a line connecting the position of the user with the field of view. The first line is horizontal and traverses the field of view. The second object extends along a second line traversing the field of view. The second line is horizontal and perpendicular to the first line.

Abstract: A method of operating a surgical microscope includes receiving an instruction to move the camera relative to the object, operating a zoom lens to zoom out and displaying images obtained by processing images recorded by the camera such that centers of the displayed images correspond to a target position within the recorded images and such that the magnification of the object displayed in the images is the initial magnification, wherein the target position is displaced within the recorded images relative to the first position, and operating actuators to move the camera.

Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.

Abstract: A method of operating a surgical microscope includes detecting a direction of gaze of a user and detecting an amount of a movement of a head of the user. The movement of the head of the user is of a translatory movement type and a rotatory movement type. Amounts of movements or rotations of the camera or changes in the magnification are performed based on the detected amount of a movement of the head of the user.

Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.

Abstract: An optical observation system includes a contactless pointer unit having a real component including a position labeling device and a virtual component including a virtual tip which is at least intermittently spaced apart from the real component. The system includes a unit for capturing at least one portion of an object and a unit for capturing a position and an alignment of the real component and a unit configured to display the captured portion of the object. The system includes a control unit for ascertaining a position of the virtual tip based on the captured position and alignment of the real component and for arranging for the image output unit to display, with a mark, the position of the virtual tip in the displayed captured portion of the object. An operating method, a pointer device suitable as a real component and a computer program product are provided.

Abstract: A method for creating a high-resolution image of an object from low-resolution images of the object is provided. Both the low-resolution images and the high-resolution image are composed of a pixel grid. An image recording device successively records low-resolution images, in which pitches of the grid points of the pixel grid are increased in one image dimension in comparison with the pitches of the grid points of the pixel grid in the high-resolution image to be created. A data processing system registers the low-resolution images with respect to one another to obtain registered images which are superimposed to obtain the high-resolution image. The grid points of the low-resolution images and the grid points of the high-resolution image have same dimensions and the data processing system uses image information obtained from different positions of the object relative to the grid points in the individual low-resolution images to create the high-resolution images.

Abstract: To simplify the optical calibration of an optical observation apparatus, a stand for an optical observation unit including a calibration object arranged directly on the stand in a fixed location is specified. Moreover, an optical observation apparatus, which includes such a stand and an optical observation unit connected to the stand, a method for calibrating such an optical observation apparatus, and a computer program are specified.

Abstract: A method for operating a medical-optical display system for displaying an object image of an observed object is made available, said object image having been obtained by means of a medical-optical observation apparatus wherein the medical-optical display system comprises a data superimposition unit for superimposing data of at least one image data record into the object image. The method comprises the following steps: determining at least one region with little activity within the object image and superimposing the at least one image data record into the at least one region with little activity.

Abstract: A screen (3) for an HMD (1) is provided, and may be designed as a display screen or as a projection screen. The screen (3) comprises a layer (19) of a material with a switchable degree of transparency and at least one further switchable layer (17, 21, 23) which, in dependence on the switching state, can assume at least two physical states, the physical states differently influencing at least one optical property of light passing through the switchable layer or reflected by it.

Abstract: A method for calibrating an object includes determining a position and an alignment of the object in a reference coordinate system, determining the position of at least three measurement spots by at least one capture apparatus, determining a target spot having a fixed spatial relationship with the measurement spots, determining a spatial relationship between the target spot and a tracking spot located on the object by virtue of the tracking spot being positioned at a calibration spot, and determining the spatial location of the calibration spot by a sensor.

Abstract: A method and a device for generating a control signal for a controllable device are provided. The controllable device has an optical position detection system. At least two images of at least one spatial region are generated with at least one optical detection device of the optical position detection system. Markers are identified in the images and the control signal is generated when a relative position between at least two markers changes. In addition, a marker array and a controllable system are provided.

Abstract: A microscope system is made available, said microscope system including: a microscope with an observer beam path with at least one camera for obtaining at least one electronic image of an observation object with a deep channel with a base, a motor-driven mount and/or a motor-driven stand, on which the microscope is mounted, a detection unit for detecting the focal depth set at the microscope, an image processing unit connected to the detection unit for the receiving focal depth and connected to the at least one camera for receiving the at least one electronic image, which image processing unit establishes the image portion in the at least one electronic image constituting the base of the deep channel in the electronic image, and a control unit connected to the image processing unit for receiving the established alignment for outputting control signals.

Abstract: A screen (3) for an HMD (1) is provided, and may be designed as a display screen or as a projection screen. The screen (3) comprises a layer (19) of a material with a switchable degree of transparency and at least one further switchable layer (17, 21, 23) which, in dependence on the switching state, can assume at least two physical states, the physical states differently influencing at least one optical property of light passing through the switchable layer or reflected by it.

Abstract: A visualization system includes an image capturing apparatus configured to observe an object region having an object plane, an illumination apparatus that is mechanically decoupled from the image capturing apparatus, having an actuator for controlling at least one property of the illumination apparatus, a control unit connected to the actuator, and a pose capturing unit connected to the control unit. The pose capturing unit is embodied so that a relative pose between the illumination apparatus and the image capturing apparatus is ascertainable, wherein the actuator is actuable by the control unit, in dependence on the relative pose ascertained by the pose capturing unit, in a manner such that the at least one property of the illumination apparatus is settable such that the object region having the object plane is illuminated by the illumination apparatus.