Abstract: The present invention relates to distributing bandwidth between a plurality of devices in a system having bandwidth limitations, and in particular to a method for negotiating bandwidth in such a system wherein the plurality of devices are interconnected in a peer-to-peer network. The present invention further relates to a computer program product implementing the method and to such devices.

Abstract: The present invention is directed towards a method for collecting information pertaining to an audio notification system comprising a plurality of audio devices and a database, wherein each of the plurality of audio devices comprises a loudspeaker and a microphone, the method comprising: sequentially for each of the plurality of audio devices: emitting, by means of the loudspeaker of a currently emitting audio device, an audible test sound; monitoring, by means of microphones of the audio devices in the system, for the audible test sound; and for each monitoring audio device, if the audible test sound is detected by the monitoring audio device, storing, in the database, information pertaining to the currently emitting audio device and information pertaining to the monitoring audio device detecting the audible test sound.

Abstract: A method of generating an event video sequence is disclosed. The method comprises receiving input image frames encoded into a sequence of image frames arranged in groups of pictures, each group of pictures having a GOP structure. The method further comprises storing a pre-event sequence of image frames in a first-in-first-out buffer, said pre-event sequence having a first predetermined GOP structure, upon receiving an event notification, retrieving the pre-event sequence from the buffer, and generating the event video sequence by combining the pre-event sequence and a post-event sequence of image frames, said post-event sequence having a second GOP structure, which is different from said first GOP structure. A system for generating an event video sequence is also disclosed, as well as a camera comprising such a system, and a computer program product with instructions adapted to carry out the method when executed by a processor.

Abstract: The present invention relates to a method (300) for reducing stray light in an output image of a scene, said method comprising; providing (301) a camera (100) comprising a lens assembly (102, 202), providing (302) an aperture unit (103, 203) having an aperture gate (204a, 204b) in an aperture plane being orthogonal to an optical axis (OA) of said lens assembly (102, 202), said aperture gate (204a, 204b) being adjustable in said aperture plane, acquiring (303), by means of said camera (100), a plurality of images of said scene, wherein each image of said plurality of images is acquired using an unique aperture gate setting, wherein each of said unique aperture gate settings correspond to a unique combination of a position and a shape of said aperture gate (204a, 204b) in said aperture plane, analyzing (305) said plurality of images for generating data pertaining to a difference in stray light content with respect to said plurality of images, and producing (306) said output image based on said data pertaining t

Abstract: A method selects events from an event log for presentation along a timeline. The method may receive information associated with the timeline to define an interval of interest and a partition size, and divide the timeline into a plurality of segments based on the partition size. The method may further identify each segment having at least one relevant event within the segment, where a relevant event is an event which starts within a segment and overlaps with the interval of interest. The method may determine parameters associated with at least one relevant event for each identified segment, and provide the determined parameters along with an index which designates each identified segment. The determined parameters may be provided to a client to generate the timeline of the at least one relevant event. An apparatus can implement the method to select events from an event log which are associated with a defined time interval.

Abstract: A method for controlling exposure of a camera is disclosed. The method comprises calculating a darkness level and a saturation level with respect to a first image in a video sequence. If the saturation level exceeds a first limit, a target value for a mean intensity value of pixels in images captured by the camera is decreased by an amount which is an increasing function of the darkness level. The decreased target value is used to control the exposure of the camera for images subsequent to the first image in the video sequence, such that the mean intensity value of pixels in the subsequent images approaches the decreased target value.

Abstract: A method performed in a processing unit for finding settings to be used in relation to a sensor unit connected to the processing unit is disclosed. The method comprises inter alia receiving, from the sensor unit, a first identifier identifying a type of the sensor unit, and a second identifier identifying a group of at least one related type of sensor unit. If no settings associated with the first identifier are stored in the processing unit, but settings associated with the second identifier are stored in the processing unit, the processing unit uses the settings associated with the second identifier in relation to the sensor unit.

Abstract: The present invention relates to a method for amplifying a signal in an amplifying device, and in particular to a method for an amplifying device being adapted for a plurality of available powers. The method comprises determining an available power by retrieving a value indicating an available power, the available power being one of the plurality of available powers, setting an operating voltage level for a power amplifier, the operating voltage level being based on the available power, generating a pre-amplified signal by applying a signal gain to the signal, the signal gain being based on the available power, and generating an output signal by amplifying the pre-amplified signal at the power amplifier.

Abstract: A device and method for determining exposure settings in a camera is disclosed. The method comprises capturing an image frame using an image sensor, the exposure of the capturing is based on an initial exposure value setting, determining a temporary exposure value by finding an exposure value that results in a substantially optimum value when applied to a total cost calculation, calculating a saturated pixels cost related to the saturated pixels for the captured image at the temporary exposure value, determining a next exposure value by finding a decrease in exposure value, in relation to the temporary exposure value, for which decrease a change in total cost for non-saturated pixels, in relation to the total cost for non-saturated pixels at the temporary exposure value, is substantially equal to the saturated pixel cost calculated at the temporary exposure value, using this determined next exposure value for capturing a new image frame.

Abstract: The present relates to a connector kit for interconnecting a first and a second apparatus, said first apparatus having a first female connector jack, and said second apparatus having a second female connector jack, and to a method of electrically connecting a first apparatus to a second apparatus.

Abstract: A method for setting up a monitoring camera includes tilting a camera head of the camera to a tilting position in which an optical axis of the camera substantially coincides with a rotational axis that the camera head is turning around when panning, and in which the camera head is able to capture images through a wide angle lens arranged in a fixed position in relation to a base of the camera. The camera head is turned around the optical axis of the camera and captures images until wide angle images captured through the wide angle lens present the desired orientation. A home position value for a pan motor of the camera is stored, wherein the position value represents the position value for the pan motor when the captured wide angle image presents the desired orientation.

Abstract: The present invention relates to an enclosure for recess mounting of a camera or camera head in a recess of a surface, the enclosure comprising an attachment portion, a cable sealing portion being adapted to seal against an outer surface of the cable extending through the cable sealing portion, and a circumferential wall portion adapted to extend along a closed path in a circumferential direction and in a first direction extending from the attachment portion towards the cable sealing portion, wherein at least a portion of the circumferential wall portion is formed of a flexible and/or elastic material such that the cable sealing portion is movable relative the attachment portion. The present invention also relates to an arrangement for recess mounting of a camera or camera head in a recess of a surface.

Abstract: A method for correcting and presenting a barrel distorted image is disclosed. In the method an output image is created having a user-defined aspect ratio (AR), and the method comprises acquiring a continuous flow of barrel distorted images in a video camera and processing the image in an image processing unit. The processed image is added as an output image to an image stream, and the actual processing includes applying a barrel distortion correction so as to form a corrected image having a smallest width (w?) and a smallest height (h?), and generating the output image by cropping the corrected image to a height exceeding or equaling the smallest height (h?) and having the user-defined aspect ratio (AR).

Abstract: The present invention relates to a method, an encoder, a computer program product, and a system for real-time encoding. The encoder is arranged to receive movement information about a movement of a camera, the encoder being arranged to encode, in real-time, a video stream acquired by the camera during the movement of the camera, wherein the encoder is arranged to encode based on said movement information. The movement information may be stored in a memory.

Abstract: A method and encoder for video encoding a sequence of frames is provided. The method comprises: receiving a sequence of frames depicting a moving object, predicting a movement of the moving object in the sequence of frames between a first time point and a second time point; defining, on basis of the predicted movement of the moving object, a region of interest (ROI) in the frames which covers the moving object during its entire predicted movement between the first time point and the second time point; and encoding a first frame, corresponding to the first time point, in the ROI and one or more intermediate frames, corresponding to time points being intermediate to the first and the second time point, in at least a subset of the ROI using a common encoding quality pattern defining which encoding quality to use in which portion of the ROI.

Abstract: The present invention relates to the field of processing a video stream, and more particular to the field of post processing of a video stream using shaders. The processing of the video stream is divided between a video stream processing device and a client device.

Abstract: A method for improving audio experience for a user of an audio device is provided. The method includes establishing a communication channel between the audio device and a remote client; detecting a peripheral audio device in the vicinity of the audio device; establishing a temporary communication channel between the peripheral audio device and the remote client; and transferring, via the temporary communication channel, audio data between the peripheral audio device and the remote client.

Abstract: The present invention relates generally to video communication systems, and more specifically to a method and device for adjusting properties of a graphical overlay for a video stream, the adjusted properties being at least one of a position, a degree of animation and a color composition of the graphical overlay and the adjustment is based on a scene depicted by the time period of the video stream. The adjustment is performed if an estimated bitrate for transmitting an encoded bitstream comprising the time period of the video stream and the graphical overlay exceeds a predetermined upper threshold bitrate for transmitting an encoded single bitstream comprising the time period of the video stream and the graphical overlay.

Abstract: The present invention relates generally to video communication systems, and more specifically to a method and device for determining a degree of animation of a graphical overlay for a video stream based on a degree of movement in the video stream.