Abstract: Systems and methods are disclosed for processing an electronic image corresponding to a specimen. One method for processing the electronic image includes: receiving a target electronic image of a slide corresponding to a target specimen, the target specimen including a tissue sample from a patient, applying a machine learning system to the target electronic image to determine deficiencies associated with the target specimen, the machine learning system having been generated by processing a plurality of training images to predict stain deficiencies and/or predict a needed recut, the training images including images of human tissue and/or images that are algorithmically generated; and based on the deficiencies associated with the target specimen, determining to automatically order an additional slide to be prepared.

Abstract: An ophthalmological image processing apparatus includes an image obtaining portion for obtaining ophthalmological image data, which is captured by an imaging unit, of a subject eye, and an image processing portion for processing the ophthalmological image data. The image processing portion uses a first front image of the subject eye in a first depth region to correct a second front image of the subject eye captured in a second depth region which is different from the first depth region. The first front image and the second front image are constructed based on the ophthalmological image data. The ophthalmological image processing apparatus can reduce an artifact which is generated in an ophthalmological image.

Abstract: The disclosure provides a method for obtaining a fluorescent fundus image, the method including the following steps: receiving a to-be-detected color fundus image; obtaining a color feature of the to-be-detected color fundus image; encoding the color feature of the to-be-detected color fundus image according to a fundus image transformation model to transform the to-be-detected color fundus image into a to-be-detected fluorescent fundus image; and outputting the to-be-detected fluorescent fundus image.

Abstract: A wearable ophthalmic device is disclosed. The device may include an outward facing head-mounted light field camera to receive light from a user's surroundings and to generate numerical light field image data. The device may also include a light field processor to generate modified numerical light field image data by computationally introducing an amount of optical power to the numerical light field image data based on a viewing distance from the user to an object. The device may also include a head-mounted light field display to generate a physical light field corresponding to the modified numerical light field image data.

Abstract: An apparatus for producing a non-mydriatic fundus image is disclosed. The apparatus can include a processor and memory, as well as an illumination component and a camera with a variable focus lens. The apparatus can be configured to adjust the focus of the lens to a plurality of different diopter ranges and capture at least one image at each of the plurality of different diopter ranges. A method for capturing a non-mydriatic image of a fundus is also disclosed. The method can include setting a depth of field, dividing the depth of field into a plurality of zones, adjusting a variable focus lens of a camera to focus on each of the plurality of zones, and capturing at least one image at each of the plurality of zones.

Abstract: A method for establishing the refraction of an eye (9) by means of a refractometer (3) is provided, in which the current visual axis (S) of the eye (9) is established before establishing the refraction, the refractometer (3) is aligned with respect to the visual axis (S) of the eye (9) and the refraction is established after the alignment. The visual axis (S) of the eye (9) is established on the basis of the position of a Purkinje image of at least one light source (41, 50) used to illuminate the eye and a relationship between the position of the Purkinje image and the visual axis (S).

Abstract: Systems and methods for imaging tissue are described. Particularly, systems and methods of imaging an inner limiting membrane, epi-retinal membrane, or posterior vitreous cortex of a patient's eye are disclosed. Imaging an inner limiting membrane, epi-retinal membrane, or posterior vitreous cortex may include applying a stain to the inner limiting membrane, epi-retinal membrane, or posterior vitreous cortex of the patient's eye, causing the stain to produce fluorescent light having a wavelength within a near-infrared range, capturing the fluorescent light, and producing an Optical Coherence Tomography (OCT) image of the inner limiting membrane, epi-retinal membrane, or posterior vitreous cortex with an OCT imaging system that is configured to detect light within the near-infrared range.

Abstract: A system includes: a swept laser light source generating laser light having a frequency swept across a frequency bandwidth as a function of time; a sample path directing a first portion of the laser light to an eye as a probe beam and receiving a returned portion of the probe beam from the eye; a reference path passing therethrough a second portion of the laser light, the reference path having a defined optical path length; and a detector receiving the returned portion of the probe beam from the eye and the second portion of the laser light from the reference path, and in response thereto outputting an optical coherence tomography (OCT) output signal having OCT peaks whose relative timing represents the depths of surfaces of structures of the eye, wherein the sample path includes a fiducial generator which produces a fiducial peak in the OCT output signal.

Abstract: An OCT data processing device includes a processor that performs acquiring three-dimensional OCT data. The three-dimensional OCT data is OCT data of a tissue of a subject's eye acquired by an OCT device and is obtained by irradiating measurement light on a two-dimensional measurement region. The two-dimensional measurement region extends in a direction intersecting an optical axis of the measurement light. The processor further preforms setting a line pattern, from among a plurality of types of line pattern, with respect to the two-dimensional measurement region for which the three-dimensional OCT data is obtained, at least one of an arrangement, a number, or a shape of one or more lines being different for the plurality of types of line pattern, and extracting, from the three-dimensional OCT data, a two-dimensional tomographic image of a cross section intersecting each of the one or more lines of the set line pattern.

Abstract: A retinal scanning type eye examination device includes a storage unit configured to store test image data; a laser emitting unit including a laser light source configured to generate an imaging laser beam based on the test image data, the laser emitting unit being configured to project a test image onto a retina of an eyeball of a person subjected to an eye examination by using the imaging laser beam; an optical component configured to cause the imaging laser beam to converge at an inside of the eyeball of the person; a parameter acquiring unit configured to acquire parameter information for a retinal scanning type eyewear, the parameter information including angle information indicating a rotation angle of the laser emitting unit when the laser emitting unit is rotated around a converging point of the laser beam; and an output unit configured to output the parameter information to an external device.

Abstract: A visual performance examination device includes an image data obtaining unit that obtains image data of the right eye and image data of the left eye of a test subject who is irradiated with a detection light emitted from a light source; a position calculating unit that, based on the image data of the right eye, calculates first-type relative position data indicating the relative position between the pupil and the corneal reflex of the right eye, and, based on the image data of the left eye, calculates second-type relative position data indicating the relative position between the pupil and the corneal reflex of the left eye; and an evaluating unit that, based on the first-type relative position data and the second-type relative position data, outputs evaluation data about the visual performance of the test subject.

Abstract: System and Method pertaining to the modification and integration of an existing consumer digital camera, for example, with an optical imaging module to enable point and shoot fundus photography of the eye. The auto-focus macro capability of existing consumer cameras is adapted to photograph the retina over an extended diopter range, eliminating the need for manual diopter focus adjustment. The thru-the-lens (TTL) auto-exposure flash capability of existing consumer cameras is adapted to photograph the retina with automatic flash exposure eliminating the need for manual flash adjustment. The consumer camera imaging sensor and flash are modified to allow the camera sensor to perform both non-mydriatic focusing of the retina using infrared illumination and standard color flash photography of the retina without the need for additional imaging sensors or mechanical filters.

Abstract: An ophthalmologic apparatus of some exemplary embodiments includes an illumination system, interference photographing system, anterior eye segment photographing system, first optical path coupling element, and controller. The illumination system projects illumination light output from a light source, onto the anterior eye segment of a subject's eye. The interference photographing system performs photographing of an interference pattern formed on the cornea by the illumination light. The anterior eye segment photographing system performs photographing of the anterior eye segment onto which the illumination light is being projected. The first optical path coupling element couples the optical path of the interference photographing system and the optical path of the anterior eye segment photographing system with one another.

Abstract: An ophthalmic apparatus of an exemplary embodiment is capable of applying OCT to the fundus of a subject's eye, and includes an optical system, an optical scanner, an optical path length changing device, and a controller. The optical system splits light output front a light source into measurement light and reference light, projects the measurement light onto the fundus, generates interference light by superposing returning light of the measurement light from the subject's eye on the reference light, and detects the interference light. The optical scanner deflects the measurement light for scanning the fundus. The optical path length changing device changes at least one of an optical path length of the measurement light and an optical path length of the reference light. The controller controls the optical scanner based on at least the optical path length.

Abstract: A wearable ophthalmic device is disclosed. The device may include an outward facing head-mounted light field camera to receive light from a user's surroundings and to generate numerical light field image data. The device may also include a light field processor to generate modified numerical light field image data by computationally introducing an amount of optical power to the numerical light field image data based on a viewing distance from the user to an object. The device may also include a head-mounted light field display to generate a physical light field corresponding to the modified numerical light field image data.

Abstract: A multifunctional medical optical examination instrument including a hand-holdable portion, at least an optical examination head portion mountable on the hand-holdable portion and including at least optical examination and non-digitized viewing optics and image digitization, storage and transmission circuitry included in at least one of the hand-holdable portion and the at least optical examination head portion, the image digitization, storage and transmission circuitry being arranged to receive an image from at least a portion of the at least optical examination and non-digitized viewing optics.

Abstract: Optical Coherence Tomography Angiography (OCTA) image representation is obtained having OCTA pixels assigned respective OCTA values. A vessel density map is computed from the OCTA image representation. A fractional deviation map and/or a pattern deviation map is computed for the patient from the vessel density map and a normative database, wherein: (1) the fractional deviation map represents a percent loss of vessel density at each pixel location relative to an expected value based on the normative database; and (2) computing the pattern deviation map includes: computing a pattern map of the vessel density representing a normalized vessel density pattern of the vessel density map relative to an average value of the vessel density map; and computing the pattern deviation map using the pattern map. A loss is determined by using at least one of the fractional deviation map and the pattern deviation map. Other features are also provided.

Abstract: A workpiece image generation device is provided with a machining information acquisition unit, an area division unit configured to virtually divide a surface area of the workpiece into partial areas based on the surface shape information, an image acquisition unit configured to acquire a plurality of images of the workpiece captured with different angles of irradiation on the workpiece as viewed from the imaging device, an area image selection unit configured to extract partial images individually from the plurality of images of the workpiece, based on the partial areas of the surface area of the workpiece, and select partial images corresponding to the individual partial areas from the plurality of extracted partial images, an image synthesis unit configured to generate a composite image of the workpiece obtained by synthesizing the partial images, and a composite image output unit configured to output the composite image of the workpiece.

Abstract: An ophthalmic imaging system provides a user interface to facilitate the montaging of scan images collected with various imaging modalities, such as images collected with a fundus imaging system or an optical coherence tomography (OCT) system. The amount of each constituent image used in the montage is dependent upon its respective quality. During the collecting of scans (constituent images) for montaging, any scan may be designated for rescanning, such as if its current quality is deemed less than sufficient. In the case of using an OCT system to collect constituent images (e.g., cube scans), the scanned region of a constituent image may be modified based on physical characteristics of the eye being scanned.

Abstract: A multi-mode eye-tracking system allows independent control of a set of illuminators while providing accurate calculations of both corneal reflections and pupil centers. One illumination mode includes alternating back and forth between a pair of illuminators during successive time segments, then activating both illuminators after a predetermined time interval. One eye-tracking mode includes alternating back and forth between a pair of illuminators during successive time segments, but selecting a single illuminator for activation during successive time segments in the event that a previous computation was unsatisfactory for a given illuminator. One illumination mode includes activating a single illuminator based on the lateral position of the gaze point on the display.

Abstract: An ophthalmologic apparatus comprises an optical system that acquires data of an anterior segment of a subject's eye or a fundus of the subject's eye, an imaging unit that images the anterior segment or the fundus, a movement mechanism that moves the subject's eye and the optical system relative to each other, and a controller that controls die movement mechanism. The controller controls the movement mechanism so as to maintain a positional relationship between the subject's eye and the optical system based on an anterior segment image acquired by the imaging unit in an anterior segment mode for acquiring data of the anterior segment by the optical system, and controls the movement mechanism so as to maintain the positional relationship based on a fundus image acquired by the imaging unit in a fundus mode for acquiring data of the fundus by the optical system.

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: The color correction method in accordance with an embodiment of the present invention can comprise the steps of: acquiring an image from a captured image; detecting the face and eyes from the captured image; separating the sclera and pupil of the detected eye(s); correcting the image by comparing the areas of the sclera and pupil extracted by separating the sclera and pupil with the reference values stored in a database; and extracting the skin color of the face from the corrected image.

Abstract: The various implementations described herein include methods, devices, and systems for illuminating and capturing scenes. In one aspect, a video camera assembly includes: (1) one or more processors configured to operate the video camera assembly in a day mode and in a night mode; (2) an image sensor having a field of view of a scene and configured to capture video of a first portion of the scene while in the day mode of operation and in the night mode of operation, the first portion corresponding to the field of view of the image sensor; (3) one or more infrared (IR) illuminators configured to provide illumination during the night mode of operation while the image sensor captures video; and (4) an IR reflector component configured to: (i) substantially restrict the illumination onto the first portion of the scene, and (ii) illuminate the first portion in a substantially uniform manner across the field of view of the image sensor.

Abstract: Disclosed herein are systems, methods, and devices for classifying ophthalmic images according to disease type, state, and stage. The disclosed invention details systems, methods, and devices to perform the aforementioned classification based on weighted-linkage of an ensemble of machine learning models. In some parts, each model is trained on a training data set and tested on a test dataset. In other parts, the models are ranked based on classification performance, and model weights are assigned based on model rank. To classify an ophthalmic image, that image is presented to each model of the ensemble for classification, yielding a probabilistic classification score—of each model. Using the model weights, a weighted-average of the individual model-generated probabilistic scores is computed and used for the classification.

Abstract: An eye-fatigue examining device and an eye-fatigue examining method capable of examining eye fatigue of a subject's eye regardless of an age of a patient are provided. The eye-fatigue examining device includes: a light quantity difference adjusting unit that increases a light quantity difference between lights respectively incident on right and left subject's eyes; a gaze direction detecting unit that detects gaze directions of the respective subject's eyes while the light quantity difference adjusting unit increases the light quantity difference; and a light quantity difference deciding unit that decides a specific light quantity difference at which a change in the gaze directions due to the increase in the light quantity difference occurs, based on the detection result of the gaze direction detecting unit.

Abstract: A system tracks eye position using a first Optical Coherence Tomography (OCT) eye tracking unit to determine a first position of an eye of a user. The OCT eye tracking unit projects low coherence interference light onto a portion of the user's eye, and uses captured light reflected from the illuminated portion of the user's eye to generate a dataset describing the portion of the user's eye. The first position of the user's eye is determined based upon the generated dataset and a previously generated dataset. In order to minimize error and reduce the effects of draft, a reference tracking system is configured to determine a second position of the user's eye, which is used to update the determined first position of the user's eye.

Abstract: The methods and systems disclosed herein include obtaining a first image of a sample, where the first image corresponds to light transmitted through the sample in a first plurality of distinct spectral bands, obtaining a second image of the sample, where the second image corresponds to light transmitted through the sample in a second plurality of distinct spectral bands, and where at least some members of the second plurality of spectral bands are different from the members of the first plurality of spectral bands, and combining the first and second images to form a multispectral image stack, where each pixel in the image stack includes information corresponding to at least four distinct spectral bands, and where the at least four distinct spectral bands include at least one member from the first plurality of spectral bands and at least one member from the second plurality of spectral bands.

Abstract: Supercontinuum (SC) (˜400 nm to ˜2500 nm) and a microscope produce enhanced microscopic images on sub-micron to cm scale of linear (?1) and nonlinear (?2, ?3, ?4 . . . ) processes via resonance including linear absorption, SHG, THG, SRG, SRL, SRS, 2PEF, 3PEF, 4PEF, and inverse Raman in a microscope for 2D and 3D imaging. Images and processes in 2D and 3D arise from electronic and vibrational resonances transitions in biological and medical tissues, cells, condensed matter applications. Resonant Stimulated Raman Scattering (RSRS) is proposed to improve vibrational imaging of biomaterials by using part of SC. Quantum mechanical processes from SC for 2 and 4 photons to improve resolution and imaging using entangled photons are described. The addition of time measuring instrument like a Streak camera and the scattering coefficient ?s? can be mapped to create images of tissue and biomaterial in 5D: Space (3D), Time, and Wavelength.

Abstract: A method for classifying a cataract of an eye to determine parameters for pre-setting phaco-treatment instruments. OCT-based measurements are realized. The OCT-based scans are analysed using imaging technology and the local distribution of the cataract is determined. The cataract is classified on the basis of comparison values and the local distribution and classification of the cataract are used to identify parameters for pre-setting phaco-treatment instruments. Even though the proposed method for classifying the cataract of an eye is provided for determining parameters for pre-setting phaco-treatment instruments, it should equally also be used for determining parameters for pre-setting treatment instruments based on fs-lasers.

Abstract: An optical measurement system and method measure a characteristic of a subject's eye. The optical measurement system receives from an operator, via a user interface of the optical measurement instrument, a begin measurement instruction indicating the start of a measurement period for objectively measuring at least one characteristic of the subject's eye. Subsequent to receiving the begin measurement instruction, the optical measurement system determines whether a criterion associated with the tear film quality of the subject's eye is not satisfied. In response to determining that the criterion is not satisfied, the optical measurement instrument takes one or more corrective actions to measure the characteristic of the subject's eye under a condition wherein the criterion is satisfied.

Abstract: Disclosed is a method and apparatus for determining a position of a pupil. The method includes: acquiring an image to be detected including a pupil; acquiring a binary image of a preset area based on a preset model of semi-supervised learning, where the preset area is an area where the pupil is located in the image to be detected; acquiring a centroid of the binary image; and determining a central position of the pupil according to the centroid of the binary image.

Abstract: A microscope, comprising an observation beam path that renders an eye to be examined observable, a wavefront measuring device for measuring the refraction of the eye to be examined, an OCT device comprising an OCT illumination beam path, by means of which OCT illumination radiation can be focused as an OCT spot into the eye to be examined, and a control unit that is supplied with at least one measurement value of the wave front measuring device, is provided, wherein the control unit sets the beam diameter and/or the beam shape of the OCT spot on the basis of the at least one supplied measurement value.

Abstract: A gaze point compensation method and apparatus in a display device, and a display device are provided. The method includes: obtaining a real-time eye image of a user; obtaining an eye-corner position coordinate in the real-time eye image; when the eye-corner position coordinate is within an initial calibration range, making first compensation for the eye-corner position coordinate according to a correspondence relationship between a pupil and an eye-corner position; otherwise, making second compensation for the eye-corner position coordinate, wherein the second compensation is configured to make the eye-corner position coordinate after the second compensation at least be within the initial calibration range; and compensating for a gaze point according to the first compensation or the second compensation.

Abstract: In a perimetry to be conducted, designating an inspection region through a region designator, a perimeter is configured to set a required time of the perimetry (upper limit time) through an upper limit condition setter and to determine total number or positions of stimulus presentation spots based upon the upper limit time. In such a configuration, an examinee knows the time to finish the inspection, and is able to highly keep his (her) concentration in comparison with a case where the required time is not known, thereby improving precision of the inspection.

Abstract: An apparatus and method for collecting medical data which envisages: acquiring medical data by means of a medical data collecting apparatus (10); storing a copy of said medical data in a remote device (16), separate from the apparatus (10); assessing the methods of use of the apparatus (10) by means of a predefined algorithm comparing the medical data comprised in the last copy stored and the medical data comprised in the penultimate copy stored of the medical data; limiting or blocking functioning of the apparatus (10) if the methods of use assessed correspond with predefined prohibited methods of use.

Abstract: For reducing a time utilized in an AO process, provided is a deformable mirror system, including: a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal; a light wavefront measurement apparatus configured to measure a light wavefront shape of reflected light from the deformable mirror; a conversion factor calculation apparatus configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal; a shape difference calculation apparatus configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement apparatus and a light wavefront shape calculated from the input signal; and a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference.

Abstract: Some embodiments include a method comprising receiving gaze data from an image sensor that indicates where a user is looking, determining a location that the user is directing their gaze on a display based on the gaze data, receiving a confirmation input from an input device, and generating and effectuating an input command based on the location on the display that the user is directing their gaze when the confirmation input is received. When a bystander is in a field-of-view of the image sensor, the method may further include limiting the input command to be generated and effectuated based solely on the location on the display that the user is directing their gaze and the confirmation input and actively excluding detected bystander gaze data from the generation of the input command.

Abstract: A dosimetry system may comprise a film stack and a laser system for applying a laser beam to the film stack. The system may further comprise an interferometry system configured to acquire from the film stack a first interferometric dataset comprising a first composite signal and a subsequent interferometric dataset comprising a subsequent composite signal. The system may also include a processor for comparing the first and subsequent composite signals, wherein a difference between the first and subsequent composite signals indicates a change in the film stack thickness. A dosimetry method may comprise applying a laser beam to such a film stack, acquiring the first and subsequent interferometric datasets, comparing them to detect a change in the film stack thickness, and ceasing to apply the laser beam to the film stack if the change in the film stack thickness exceeds a predetermined threshold.

Abstract: An optical coherence tomographic device configured to acquire a tomographic image of a subjected eye is disclosed herein. The optical coherence tomographic device may include a light source of wavelength sweeping type; and a measurement optical system configured to irradiate the subjected eye with light outputted from the light source, where D/S×?>1.61 may be satisfied, with a diameter of the light outputted from the light source at an incident position to the subjected eye is D, a wavelength swept frequency of the light source is S, and a center wavelength of the light outputted from the light source is ?.

Abstract: Digital fundus cameras including an objective lens and a digital imager for capturing digital retinal images. The digital fundus cameras include an annular LED illumination arrangement having an annular LED illuminator with a ring of spaced apart individual masked LEDs, an annular folded illumination optical train and a multiple stage stray illumination trap arrangement for capturing stray illumination. The annular LED illumination arrangement can optically include a glare spot masking arrangement.

Abstract: A system for identifying structures in an eye of a subject. In embodiments of the invention, the system has a housing; a visible light source supported by the housing; an infrared light source supported by the housing; a photodetector supported by the housing; a patient interface disposed on an outer surface of the housing arranged and configured so that, when the patient interface is placed in contact with the subject, the subject's eye is aligned with the light sources and the photodetector such that the light sources illuminate an iris of the eye at an angle between 15° and 30° and such that the photodetector receives light from the light sources reflected by the iris; and a controller configured to activate the visible light source and the infrared light source and to obtain image information from the photodetector.

Abstract: An illumination system of an ophthalmologic apparatus of an exemplary embodiment projects illumination light from a light source onto the anterior eye segment of a subject's eye. An interference photographing system photographs an interference pattern formed on the cornea by the illumination light. An anterior eye segment photographing system photographs the anterior eye segment onto which the illumination light is being projected. A first optical path coupling element couples the optical path of the interference photographing system and the optical path of the anterior eye segment photographing system with one another.

Abstract: Fluorescence microscopy apparatus for the analysis of a fundus of a sample eye, based on the use of an optical equipment configured to generate a Bessel beam inside a sample eye and an objective configured to increase the numerical aperture of an “objective-cornea-lens” assembly by reducing the overall focal length of the fluorescence microscopy apparatus, also allowing a significant increase in spatial resolution compared to conventional microscopy systems.

Abstract: A non-transitory computer readable medium embodies instructions that cause one or more processors to perform a method. The method includes: (A) receiving a selection of a 3D model stored in one or more memories, the 3D model corresponding to an object, and (B) setting a camera parameter set for a camera for use in detecting a pose of the object in a real scene. The method also includes (C) receiving a selection of data representing a view range, (D) generating at least one 2D synthetic image based on the camera parameter set by rendering the 3D model in the view range, (E) generating training data using the at least one 2D synthetic image to train an object detection algorithm, and (F) storing the generated training data in one or more memories.

Abstract: A method of determining control parameters of a retinal treatment system comprising acquiring an image of a retina of a subject's eye using an imaging laser and an optical system of the retinal treatment system, presenting an image of the retina to a user of the retinal treatment system, receiving from the user location data of the retinal image that locates at least one treatment site of the retina, receiving from the user a required laser light pattern for use on the treatment site, using the location data to determine a location control parameter which causes the optical system to direct laser light from a treatment laser of the retinal treatment system to the treatment site, and using the required laser light pattern to determine a pattern control parameter which causes the treatment laser to produce a laser light pattern which passes through the optical system and results in the required laser light pattern at the treatment site.

Abstract: In an image sensor, high-speed recognition processing is performed using high-speed image data, which is different from low-speed image data used for displaying. In the image sensor, an imaging element captures an image of an object and generates frames of image data arranged in time series. A binarization processing unit performs binarization processing on each of the frames to generate binarized frames. A tracking processing unit generates a difference between binarized frames adjacent in time series and tracks a change in a position of the object included in the binarized frames.

Abstract: A method for determining the topography of the cornea of an eye on the basis of an optical, contactless data capture. In the method for determining the topography of the cornea of an eye, which is based on a deflectometric method, the deflectometric measurements are carried out with the aid of a keratometric method by virtue of additional OCT-based scans being made at the keratometric measurement points, wherein the two measurement systems are registered to one another and both the keratometric and the OCT-based measurement values are recorded and used for mutual calibration to determine and output the topographic data. The proposed method serves to determine the topography of the cornea of an eye. It is helpful to ascertain the topography in order to be able to draw conclusions about possible pathological changes. Moreover, the exact measurement of the corneal topography is of great importance for correcting refractive errors.

Abstract: The invention relates to an eye tracking system (10) and a method for operating an eye tracking system (10) for determining if one of a left and a right eye of a user is dominant, wherein at least one image of the left and the right eye of the user is captured (S30), based on the at least one image and according to a predefined accuracy function a left accuracy score for the left eye (S34a) and a right accuracy score for the right eye (S34c) is determined and it is determined if one of the left and the right eye of the user is dominant in dependency of at least the left and the right accuracy score (S36). Thereby user-specific properties relating to his eyes can be provided and considered when performing eye tracking so that the robustness and accuracy of eye tracking can be enhanced.

Abstract: A method for measuring layer thicknesses of a multi-layer structure includes generating first and second 2D images of the structure, each image being generated by measuring an intensity of a reflection of incident lights, from different discrete narrow spectral bands, on the structure. Thicknesses for at least one layer of the structure are then determined based on the measured reflection intensities at those locations.