Abstract: A calibration method in a camera with a P-Iris lens having an adjustable iris opening including the steps of adjusting the size of the iris opening between a first opening position and a second opening position, recording a plurality of images during the adjusting, analyzing the images, and determining an iris opening based on the analysis, that obtains a high quality image. The analyzing includes use of high frequency content in the recorded images.

Abstract: A video analytics system and associated methodology for performing low-level video analytics processing divides the processing into three phases in order to efficiently use SIMD instructions of many modern data processors. In the first phase, pixels of interest are gathered using a predetermined mask and placed into a pixel matrix. In the second phase, video analytics processing is performed on the pixel matrix, and in the third phase the pixels are scattered using the same predetermined mask. This allows many pixels to be processed simultaneously, increasing overall performance. A DMA unit may also be used to offload the processor during the gathering and scattering of pixels, further increasing performance. A network camera integrates the video analytics system to reduce network traffic.

Abstract: An illumination device performs a method for illuminating a scene monitored by a camera. The illumination device includes a first light emitting source having a first lens arranged so that the first light emitting source, at a first distance from the illumination device, provides illumination essentially within a first area of a predetermined size. A second light emitting source of the illumination device has a second lens arranged so that the second light emitting source, at a second distance from the illumination device, provides illumination essentially within a second area of the predetermined size. The output intensity of the first and the second light emitting source is individually controllable.

Abstract: The present invention relates to digital cameras and in particular to positioning of image sensors in digital cameras. By providing a digital camera comprising a lens system, at least one image sensor which is attached to a sensor disc and an axle to which the sensor disc is attached and wherein the axle is configured to allow manipulation thereof for adjusting the tilt of the at least one image sensor, a simple solution is provided, enabling adjustment of the image sensor position in the digital camera.

Abstract: The present invention relates to a digital camera which comprises a sensor holder on which an image sensor is mounted and at least one adjustment ring. The adjustment ring is configured to rotate around an optical axis (OA) of the camera. The sensor holder and the at least one adjustment ring are configured to interact via at least one cam surface such that when the at least one adjustment ring is rotated with respect to the sensor holder, a normal direction of the sensor is adjusted in relation to a direction of the optical axis.

Abstract: A method for connecting a storage device to an information generating device includes transferring an identifying message from the storage device to a control server via a computer network. The identifying message includes a unique identifier uniquely identifying the storage device, matching a registered information generating system to the unique identifier, and identifying at least one information generating device included in the matched information generating system. A configuration message is transferred from the control server to the storage device, and the configuration message includes an address to the identified at least one information generating device and instructions of interaction. The instructions of interaction are arranged to define how the transfer of generated information is to be performed.

Abstract: The present invention relates to a network enabled digital video camera arranged to be connected to a digital network. The network enabled digital video camera includes a digital network module arranged to transmit and receive digital signals, an input/output port being an electrical connector and being connected to the digital network module, and an analog video generator arranged to output an analog video signal. The input/output port connected to the digital network module is also connected to the analog video generator. The present invention also relates to an adaptor used to connect the network enabled digital video camera to an off-the-shelf video preview device.

Abstract: A system and device perform a method for monitoring the accessibility of an emergency exit, which includes illuminating an area in front of the emergency exit by emitting light, detecting reflected light from the illuminated area using an image sensor, calculating a plurality of distances based on the detected reflected light for discrete positions in the image sensor, comparing the each of the plurality of distances with a predetermined distance, and generating an alarm signal if the comparing indicates a substantial difference in distance in at least one position in the image sensor.

Abstract: A monitoring camera includes at least one emitter of perceivable signals, a tilt sensor arranged to generate a signal representing a tilt value indicating a tilting angle of the monitoring camera, and an emitter driver arranged to drive the at least one emitter of perceivable signals in response to an adjustment indicating signal which is based on the tilt value signal. The monitoring camera may be arranged to perform a method including entering the camera into an installation mode, generating a tilt value signal at a tilt sensor within the monitoring camera, and indicating by means of at least one emitter of perceivable signals whether the monitoring camera is positioned in a desirable tilt or not based on the generated tilt value signal. The method may further include exiting the installation mode and entering into monitoring mode when satisfactory tilt is achieved.

Abstract: A digital video camera performs a method to improve the image quality of captured images in a video image stream. The method includes capturing a first subset of images, outputting the images of the first subset of images as the video image stream, moving an image sensor and/or a lens of the digital video camera from a respective normal position to a respective test position before capturing an image of a second subset of images. The digital video camera captures a second subset of images interspersed with the first subset of images, compares image quality of the first subset of images with an image of the second subset of images, and determines if the image of the second subset of images exhibits improved image quality as compared with the image of the first subset of images. If so, an image quality improvement operation is initiated.

Abstract: The present invention deals with an identification apparatus (100) in a video surveillance system for identifying properties of an object captured in a video sequence by a video surveillance camera. The identification apparatus comprises: an object identification unit (102) for identifying a specific object in a video sequence; a color histogram generator (104) for generating a color histogram in at least two dimensions of a color space based on color and intensity information of the specific object identified in the video sequence, the color and intensity information originating from a plurality of images of the video sequence; and an object properties identificator (106) for identifying properties of the object based on the generated color histogram. The identified properties can then be used in a tracking device (200) of the video surveillance system for tracking an object between different video sequences, which may be captured by two different video surveillance cameras.

Abstract: A method for configuring parameter values for a plurality of cameras (100a-100f) is disclosed. In the first step of the method, image data from the plurality of cameras (100a-100f) is acquired. Secondly, the image data from the plurality of cameras (100a-100f) is buffered. Thirdly, the buffered image data from the plurality of cameras (100a-100f) is displayed. Fourthly, at least one parameter value for a first subset of said plurality of cameras is changed. Fifthly, the at least one parameter value is transmitted to said first subset of cameras. Sixthly, the changed image data from a second subset of said plurality of cameras is acquired. Seventhly, the buffered image data for said second subset of cameras is replaced with said changed image data for said second subset of cameras. Finally, the stored image data for said plurality of cameras (100a-100f) is displayed.

Abstract: A camera and a method for selecting a focus region in a camera view have a plurality of focus regions that are defined in the camera view. A focus distance of the camera is repeatedly set to focus at different distances by setting a lens distance of the camera to different lens distance values. A focus value is determined for each focus region at the set lens distance value. A function for a plurality of focus regions is estimated based on a plurality of determined focus value and lens distance value pairs. A local maximum point of the function is calculated for each focus region for which a function has been estimated, where the local maximum point has a lens distance value. Focus regions are grouped, rated and selected based on the lens distance value of the local maximum point of the focus regions and spatial distances between the focus regions.

Abstract: A system, computer program product and associated methodology for video motion detection combines a series of images of a video sequence into an image volume having vertices of X, Y and t. The image volume is sliced in either the (X,t) or (Y,t) planes, filtered with a spatio-temporal filter and thresholded to reduce the amount of information. Then a search algorithm searches along search lines in a subset of the video sequence to locate motion. Motion can be detected by identifying lines that are not parallel to any of the vertices. Stationary subjects and lighting changes appear as lines parallel to one of the vertices. Thus, true motion can be distinguished from lighting changes.

Abstract: A method and a video camera for recording an event initiated video sequence includes storing captured video frames in a video buffer, detecting a first event, and in response, initiating a video sequence recording session for recording of a video sequence in a non-volatile memory. Pre-event video frames and post-event video frames related to the first event are recorded, where the post-event time period starts at the detection of the first event. A first event delay time period is started in response to the expiration of the post-event time period. The video sequence recording session is closed if a delay period expires and no other event process is in progress.

Abstract: A method for connecting a monitoring device to a service server includes retrieving an address relating to a control server from a memory of the monitoring device and, sending a connection message from the monitoring device to the address relating to a control server in response to a connecting event. At the control server, an identifier is extracted from the communication between the monitoring device and the control server, a service server associated with the extracted identifier is identified and an address relating to the identified service server is sent from the control server to the monitoring device. A connection message from the monitoring device is sent to the identified service server in response to the receipt of the address related to the identified service server. A service connection is established between the monitoring device and the identified server.

Abstract: A method and a module for identifying possible tampering of a camera view. The method comprising receiving an image for analysis from an image sequence, converting the received image into an edge image, generating a similarity value indicating a level of similarity between said edge image and a reference edge image, indicating possible tampering of the camera view if the similarity value is within a specified tampering range, and updating the reference edge image by combining a recently analyzed edge image with the reference edge image in case of each one of a predetermined number of consecutively analyzed images does not result in an indication of possible tampering.

Abstract: The invention relates to an electronic device and a method for updating firmware in a number of electronic devices connected to a data network. First, a firmware in a first electronic device of said plurality of electronic devices is configured. Then, a firmware update file is generated in said first electronic device, based upon said configured firmware by using a firmware update file generator. Next, the firmware update file is transmitted from the first electronic device to a number of electronic devices via a data network. Finally, the firmware is updated in the number of electronic devices by executing said firmware update file in each of the electronic devices.