Abstract: There is disclosed a method for controlling power consumption of a wearable device, wherein the method comprises obtaining information from one or more sensors of the wearable device; using the obtained sensor information to form a sensed context profile; comparing the sensed context profile with a set of predetermined context profiles to determine a context of the wearable device; and using the determined context to adjust at least one operation of the wearable device related to augmented reality. There is also disclosed a wearable device and computer program product.

Abstract: A testing apparatus for testing a device. In accordance with an embodiment the testing apparatus includes a base part; a testing head; first movement rails attached with the base part; a first movement platform positioned on top of the first movement rails adapted to enable movement of the first movement platform in a first direction; a second movement platform attached with the first movement platform so that the second movement platform is adapted to be movable in a second direction transverse to the first direction; a first support adapted to be movable in a third direction transverse to the first direction and the second direction; a movement mechanism for moving the testing head; and a second support attached with the vertical support for supporting the movement mechanism and the testing head. The movement mechanism comprises a first axis for pivoting the testing head; a second axis for tilting the testing head; and a third axes for rotating the testing head.

Abstract: There are disclosed various methods, apparatuses and computer program products for camera assisted alignment detection. In some embodiments a certain number of patterns are shown on a display of a device under test, at least one image of the display is captured, the at least one captured image is analyzed to find out locations of the patterns, and the locations of the patterns are used to determine the pose of the device under test.

Abstract: A method for testing a display includes capturing information displayed by the display at a location of an identifier displayed with a frame of a sequence of frames; and analysing the captured information. The method further includes determining a colour of the identifier; and using information on the determined colour to determine at least one of the following: a change of a frame in the sequence of frames displayed by the display; a timestamp of a frame in the sequence of frames displayed by the display; a frame of the sequence of frames not displayed by the display. An apparatus for implementing the method is also included.

Abstract: There are disclosed various methods, apparatuses and computer program products for camera assisted alignment detection. In some embodiments a certain number of patterns are shown on a display of a device under test, at least one image of the display is captured, the at least one captured image is analyzed to find out locations of the patterns, and the locations of the patterns are used to determine the pose of the device under test.

Abstract: Testing a head mounted display includes capturing a set of images shown by a display element; moving the display; and receiving motion information of the movement. A moment of time of the movement is detected as a first time instance. Contents of at least two images of the set of images are compared to determine whether at least a part of the information shown by the display element has been moved to another location. The comparison results are provided as a motion information of the image content. Movement in the set of images is detected on the basis of the motion information of the image content. The moment of the movement in the set of images is detected as a second time instance. A motion to photon latency is determined on the basis of the time difference between the second time instance and the first time instance.

Abstract: There are disclosed various methods, apparatuses and computer program products for testing a display. In some embodiments an image sensor captures a rendered image from the display to form a captured image, the image sensor having a second resolution greater than the first resolution. The captured image is analyzed to find difference of orientation of the rendered image with respect to an orientation of the image sensor. A rotated image is formed on the basis of the analyzed difference of orientation to obtain orientation for the rotated image to correspond with the orientation of the image sensor. The rotated image is resampled to form a resampled image having the first resolution.

Abstract: Testing a video transmission system includes generating an optical signal and varying the colour by sweeping through a colour range. A first optical sensor captures the optical signal at intervals to generate frames. Transmitted frames are received by a second communication device. Received frames are provided to a display of the second communication device to reconstruct the frames. Colour information of frames displayed is obtained by a second optical sensor. Colour information of successive reconstructed frames is compared to determine deviation in capture rate of two successive frames of the first optical sensor, delay between capturing a frame by the first optical sensor and displaying the frame by the display, deviation in display rate of two successive frames displayed by the display and/or a loss of a frame. Audio information may be utilized in video and, conversational latency, synchronization between video and audio, and audio synchronization measurements.

Abstract: Testing a video transmission system includes generating an optical signal and varying the colour by sweeping through a colour range. A first optical sensor captures the optical signal at intervals to generate frames. Transmitted frames are received by a second communication device. Received frames are provided to a display of the second communication device to reconstruct the frames. Colour information of frames displayed is obtained by a second optical sensor. Colour information of successive reconstructed frames is compared to determine deviation in capture rate of two successive frames of the first optical sensor, delay between capturing a frame by the first optical sensor and displaying the frame by the display, deviation in display rate of two successive frames displayed by the display and/or a loss of a frame. Audio information may be utilized in video and, conversational latency, synchronization between video and audio, and audio synchronization measurements.

Abstract: The present disclosure relates to a method for testing a device and a testing apparatus and a computer program product for implementing the method. The method comprises simulating a touch on a touch panel; obtaining information of a response of the touch panel to the simulated touch; and using the response information to determine one or more properties of the device. The simulating comprises providing an optical signal towards a surface of the touch panel; and converting the optical signal to another physical phenomenon on the surface of the touch panel by a converting element.

Abstract: The invention relates to a method for testing a display (1). The method comprises capturing information displayed by the display (1) at a location of an identifier displayed with a frame of a sequence of frames; and analysing the captured information. The method further comprises determining a colour of the identifier; and using information on the determined colour to determine at least one of the following: a change of a frame in the sequence of frames displayed by the display (1); a timestamp of a frame in the sequence of frames displayed by the display (1); a frame of the sequence of frames not displayed by the display (1). The invention also relates to an apparatus (2) for implementing the method.