Sensomotoric Instruments Gesellschaft Fur Innovative Sensorik Mbh

Apple Inc.

Berlin Heart Gmbh

Aplle Inc.

Jan Hoffmann

Tom Sengelaub

Denis Williams

Walter Nistico

Eberhard Schmidt

Andreas Arndt

Tobias Merkel

Kurt Graichen

Peter Nüsser

Martin Haller

Johannes Müller

Frank Deus

Peter Göttel

A system for determining the gaze endpoint of a subject, the system comprising: a eye tracking unit adapted to determine the gaze direction of one or more eyes of the subject; a head tracking unit adapted to determine the position comprising location and orientation of the eye tracker with respect to a reference coordinate system; a 3D Structure representation unit, that uses the 3D structure and position of objects of the scene in the reference coordinate system to provide a 3D structure representation of the scene; based on the gaze direction, the eye tracker position and the 3D structure representation, calculating the gaze endpoint on an object of the 3D structure representation of the scene or determining the object itself.

Method and an apparatus for determining a gaze point on a three-dimensional object

The invention relates to an eye tracking device () comprising a processing unit () and an optical system (), which comprises a capturing unit. The optical system () provides a first optical path (P; P) with a first imaging property and a second optical path (P; P) with a second imaging property and the capturing unit (C; C, C) captures a first image () by capturing light that has passed along the first optical path (P; P) and a second image () by capturing light that has passed along the second optical path (P; P), so that due to the difference of the first and second imaging property the first () and the second image () comprise a difference related to a characteristic of at least part of the first and the second image (), wherein the eye tracking device () is configured to determine a property of the eye () on the basis of at least one of the first image () and the second image ().

Eye tracking device and method for operating an eye tracking device

The invention relates to a method and an apparatus for evaluating results of gaze detection, wherein these results are present or are obtained in the form of information which defines, for each of a multiplicity of successive times, a viewing direction detected at this time and a focal point identified thereby in a scene image assigned to this time. For this purpose, the invention provides for the following steps to be carried out: &#x2014;a temporal change in the viewing direction and/or the focal point is evaluated in order to identify different viewing events which differ from one another by different speeds of an eye movement, wherein saccades and fixations and/or pursuit movements are detected as different types of viewing events and the identified viewing events are classified according to the type thereof, &#x2014;a period of time spanned by the times is divided into intervals in such a manner that an interval corresponding to a duration of the particular viewing event is assigned to each of the identified viewing events, wherein at least some of these intervals each contain a sequence of a plurality of times, &#x2014;precisely one of the times or a true subset of the times is selected in each case from each of the intervals assigned to a fixation or a pursuit movement, &#x2014;and, for each of these selected times, the focal point identified in the scene image assigned to the particular time is mapped to a position corresponding to this focal point in a reference image.

Method and apparatus for evaluating results of gaze detection

The invention relates to a head mounted system () comprising a binocular eye tracking system () comprising at least a first camera () arranged for acquiring a user's left eye () and at least a second camera () arranged for acquiring a user's right eye (), a head mounted display () comprising a first displaying means () for presenting an image to a user's left eye (), a second displaying means () for presenting an image to a user's right eye (), a processing unit () designed to process images from the eye tracking system () and calculate at least a 3D position of the left () and the right eye () and an orientation vector of the left () and the right eye () and to compute and render a stream of digital images to be projected onto the user's left and right eye () by means of the head mounted display, wherein the processing unit () is further designed to consider the 3D position of the left and the right eye () and the orientation of the left and the right eye () when computing and rendering the stream of digital images. The invention further relates to a method to compute and render a stream of digital images using a head mounted display.

Head mounted system and method to compute and render a stream of digital images using a head mounted display

The invention relates to an optical measuring device () for capturing at least one parameter of at least one eye () of a test person () wearing the optical measuring device (), comprising a frame (), at least one frame insert () attached to the frame () and at least one capturing unit (), wherein the frame () is designed to fix the optical measuring device () in such a way to the head of the test person (), that the at least one frame insert () is positioned in front of at least one eye () of the test person () for at least one direction of view of the at least one eye () on the optical axis (K) of the at least one eye (), and the capturing unit () is designed to optically capture the at least one parameter of the at least one eye (), wherein the capturing unit () is arranged in such a way (a) that the optical path (M) for the capturing of the at least one parameter of the at least one eye () excludes the frame insert ().

Optical measuring device and system

The invention relates to an optical measuring device () for capturing at least one parameter of at least one eye () of a test person () wearing the optical measuring device (), comprising a frame (), which is configured to fix the optical measuring device () to the head of the test person (), at least one capturing unit (), which is configured to optically capture the at least one parameter of the at least one eye (), and an illumination unit () for illuminating the at least one eye (), wherein an illumination characteristic is adjustable by means of the illumination unit ().

Optical measuring device and method for capturing at least one parameter of at least one eye wherein an illumination characteristic is adjustable

Since disruptive forces can be continuously exerted upon a rotor during a pulsatile flow through a pump with a magnetically mounted rotor (permanent magnets and addition control current coils), it is necessary to adjust position i.e. modify axial rotor position very quickly. The control current should only result in small amounts of losses. According to the invention, the current is pulse-width modulated by the control current coils by means of a set value predetermined by a controller which is arranged downstream from a position sensing system. If the set value is high, it is switched to a higher voltage level and the real value of the position sensing system is stored for a defined period of time, respectively beginning with the switching flank of the control current, and the position sensing system is disconnected during said period of time.

Method for controlling the position of a permanent magnetically supported rotating component

Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.

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Berlin, Germany

Jan Hoffmann