Abstract: According to an example aspect of the present invention, there is provided a near-eye ocular device, the near-eye ocular device comprising an ocular pathway enclosed by an enclosure, comprising at least one light emitter, configured to illuminate an eye of a user to produce corneal glints on the eye when the user is using the near-eye ocular device, and at least one sensor configured to obtain an image of the eye of the user when the user is using the near-eye ocular device.

Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to determine a reference point in a three-dimensional space based at least in part on locations of first and second features of a user's eye and on the user's gaze distance, and perform a mapping of the reference point into a viewed scene of a near-to-eye optical device to obtain an estimated gaze point and/or gaze direction of the user who is using the near-to-eye optical device, the mapping being based at least in part on calibration information associated with the user.

Abstract: A method, an apparatus, an arrangement and a computer readable storage medium for determining an image based at least in part on first data having a first representation is provided. The approach comprises determining a projection of an imaging element on the first representation, the imaging element being arranged to at least partly overlap with the first representation, determining a first subset of data as the subset of the first data corresponding to the projection of the imaging element on the first representation, and determining the image based at least in part on the first subset of data.

Abstract: Sectors including selection elements are scaled (405) according to the location of a selector pointer so that a selector comprising several selector elements can also be implemented on a small screen and that the selection element is sufficiently large before selection.

Abstract: A method, an apparatus, an arrangement and a computer readable storage medium for determining an image based at least in part on first data having a first representation is provided. The approach comprises determining a projection of an imaging element on the first representation, the imaging element being arranged to at least partly overlap with the first representation, determining a first subset of data as the subset of the first data corresponding to the projection of the imaging element on the first representation, and determining the image based at least in part on the first subset of data.

Abstract: Sectors including selection elements are scaled (405) according to the location of a selector pointer so that a selector comprising several selector elements can also be implemented on a small screen and that the selection element is sufficiently large before selection.