Nokia Technologies Oy

Nokia Corporation

Magic Leap, Inc.

Marja Salmimaa

Toni Jarvenpaa

Jyrki Kimmel

Peter Eskolin

Arto Juhani Lehtiniemi

Juha Lehikoinen

Miska Matias Hannuksela

Juha Henrik Arrasvuori

Pekka Talmola

Jussi Severi Uusitalo

Hannu Korhonen

Jan Eskolin

Toni Johan Järvenpää

Miikka Tapani Vilermo

Akos Vetek

Petri Piippo

Tero Jokela

Juha Nurmi

Tero Juhani Hakala

Tero Simo Ilari Jokela

Eero Rāsänen

Aleksi Ikkala

Toni Järvenpää

Toni Johan JÄRVENPÄÄ

Jyrki Sakari Kimmel

An apparatus and method is disclosed relating to determining visual attention of a user. The method may, for example, comprise tracking eye positions of a user during simultaneous display of first and second content to the user, wherein the first content comprises content displayed by a head-worn display device so that it is perceived by the user as located at a first distance from the user and the second content is displayed by a display screen of a further display device located at a second distance from the user. The method may also comprise modifying the display of either, or both, of the first and second content such as to modify the spatial position at which they appear with respect to one another. The method may also comprise determining which of the displayed first and second content the user is looking at based at least on eye position movements, if any, tracked subsequent to the modifying, and changing the display of other one of the first and second content which the user is not determined to be looking at such as to reduce its visibility relative to the content that the user is determined to be looking at.

Determining visual attention

Anapparatus, method, computer program for displaying content to a user

An apparatus including a first display means projecting light in a first band of wavelengths to form a first image at a first eye of a user and for projecting light in the first band of wavelengths to form a second image at a second eye of the user; a second display for projecting light in a second band of wavelengths to form a third image at the first eye of the user and at the second eye of the user, wherein the first band of wavelengths and the second band of wavelengths are different.

Apparatus for projecting images towards a user

An apparatus, method and computer program is described for rendering visual content on a display screen. The apparatus comprises a means for rendering visual content on a display screen. The means for rendering is configured to render said visual content at a first rendering position on said display screen. The apparatus further comprises a means for detecting a user gaze direction through an eye correction means towards said first rendering position. The apparatus further comprises a means for receiving data relating to optical properties of said eye correction means at said detected user gaze direction. The apparatus further comprises a means for determining if said optical properties at said detected gaze direction provide a threshold level of suitability for viewing said visual content.

Apparatus and method for rendering visual content on a display screen

Examples of the disclosure enable image augmentations to be used with images of users wearing head mounted items. In examples of the disclosure an apparatus can be configured to use gaze tracking to determine a location of a user's pupil wherein the user is wearing a head mounted item. The apparatus can also be configured to enable display of an indication of the location of the user's pupil so that the indication is visible on a surface of the head mounted item. The indication is configured to be used for positioning at least one image augmentation for a captured image comprising the user.

Apparatus, methods and computer programs for controlling image augmentations

Certain examples of the present invention relate to an apparatus, method, and system for use in a display Certain examples provide an apparatus including a waveguide including a plurality of diffractive sections configured to: in-couple an input beam of light into the waveguide, expand the input beam of light, and out-couple the expanded beam of light from the waveguide to provide an expanded output light beam configured for use in a reflection based heads-up display system wherein the expanded output light beam is directed to a curved reflective surface, having a non-zero optical power, for reflection therefrom to a user's eye; wherein the waveguide is configured to adjust the expanded output light beam so as to compensate for the optical power of the curved reflective surface and provide a collimated reflected expanded output light beam to the user's eye.

Apparatus, method, and system for use in a display

The present invention provides an apparatus comprising a first out-coupling diffractive optical element and a second out-coupling diffractive optical element. Each of the first and second out-coupling diffractive optical elements comprises a first region having a first repeated diffraction spacing, d, and a second region adjacent to the first region having a second repeated diffraction spacing, d, different from the first spacing, d. The first region of the first out-coupling diffractive optical element is superposed on and aligned with the second region of the second out-coupling diffractive optical element. The second region of the first out-coupling diffractive optical element is superposed on and aligned with the first region of the second out-coupling diffractive optical element.

Polychromatic light out-coupling apparatus, near-eye displays comprising the same, and method of out-coupling polychromatic light

An apparatus has a display including a plurality of pixels; and control circuitry configured to selectively control transparency states of the plurality of pixels of the display. The control circuitry includes a multiplicity of cells. A transparency state of one or more pixels is controlled by a state of an associated cell. A cell is configured to provide a propagation signal dependent upon a state of that cell to physically adjacent cells and is configured to receive propagation signals provided by physically adjacent cells. The state of the cell is controllable via addressing and is controllable via the received propagation signals.

Selectively controlling transparency states of pixels of a display

Certain examples of the present invention relate to an apparatus, method, computer program and system for use in gaze dependent foveated rendering. Certain examples provide an apparatus including at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform adapting a gaze dependent foveated rendering process in response to a determination of a sub-optimal operational condition of the gaze dependent foveated rendering process.

Gaze dependent foveated rendering apparatus, method, computer program and system

The present invention provides an apparatus () comprising a first out-coupling diffractive optical element () and a second out-coupling diffractive optical element (). Each of the first and second out-coupling diffractive optical elements comprises a first region () having a first repeated diffraction spacing, d, and a second region () adjacent to the first region having a second repeated diffraction spacing, d, different from the first spacing, d. The first region () of the first out-coupling diffractive optical element () is superposed on and aligned with the second region () of the second out-coupling diffractive optical element (). The second region () of the first out-coupling diffractive optical element () is superposed on and aligned with the first region () of the second out-coupling diffractive optical element ().

The invention relates to a method and technical equipment, wherein the method comprises obtaining a picture sequence; selecting a first spatial region and a second spatial region within a picture area of pictures of the picture sequence, the second spatial region differing from the first spatial region; obtaining a first spatial region sequence, the first spatial region sequence comprising the first spatial region of the pictures of the picture sequence; obtaining a second spatial region sequence, the second spatial region sequence comprising the second spatial region of the pictures of the picture sequence; transmitting the first spatial region sequence at a first picture rate; and transmitting the second spatial region sequence at a second picture rate, the first picture rate being different from the second picture rate.

Method and an apparatus and a computer program product for video encoding and decoding

An apparatus and a method are provided. An apparatus, including a first display arrangement; an exit pupil expanding light guide arrangement including an in-coupling region and an out-coupling region, the in-coupling region being configured to in-couple first light from the first display arrangement, and the out-coupling region being configured to out-couple the first light towards a user; and a second display arrangement arranged to transmit second light, through the exit pupil expanding light guide arrangement at the out-coupling region, towards the user.

Optical apparatus and method

A method is disclosed, comprising providing video data representing a plurality of frames of virtual reality content captured by a camera. A further step comprises determining a reference depth or object within the content. A further step comprises adjusting the position of content in one or more frames, based on the reference depth or object, to compensate for the movement of the camera during capture.

Virtual reality video processing to compensate for movement of a camera during capture

The present invention provides an apparatus including a first out-coupling diffractive optical element and a second out-coupling diffractive optical element. Each of the first and second out-coupling diffractive optical elements includes a first region having a first repeated diffraction spacing, d1, and a second region adjacent to the first region having a second repeated diffraction spacing, d2, different from the first spacing, d1. The first region of the first out-coupling diffractive optical element is superposed on and aligned with the second region of the second out-coupling diffractive optical element. The second region of the first out-coupling diffractive optical element is superposed on and aligned with the first region of the second out-coupling diffractive optical element.

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Tampere, Finland

Marja Salmimaa