Axis Ab

Erysave Ab

Andreas Nilsson

Per Kannermark

Jonas Hjelmström

Thomas Laurell

Gustav Traff

Gustav Träff

Fredrik Svensson

Mats Allers

Henrik Jönsson

Hans W Persson

Filip Tobias Petersson

A camera arrangement comprises a camera head, a holder ring and a holder base. The camera head has an imaging unit and an interaction portion with constant cross section. The camera holder ring has an inner surface configured to fit onto the interaction portion of the camera head, and the camera holder base has a receptacle orifice dimensioned to receive the camera holder ring fitted onto the interaction portion of the camera head and grip an outer surface of the holder ring. The receptacle orifice has reduced dimensions due to a tightening function to fixate the camera holder ring and the camera head in relation to the camera holder base, and thereby to fixate an orientation of the camera in relation to the camera holder base. The camera holder ring is movable along a length of the interaction portion until the tightening function of the receptacle orifice has been actuated.

Camera arrangement comprising a holder configuration for a camera head and the holder configuration

A method and apparatus for determining a focal-length setting of a lens mounted to a camera. In a method for determining a focal-length of a lens mounted to a camera, a distorted image of a scene is captured. A distortion-correction function is applied on the distorted image or on a portion of the distorted image. A most representative distortion-correction function is identified and a current focal-length setting for the lens is identified by correlating the identification to a data compilation.

Method for determination of focal length for a zoom lens

In a method for image stabilization a number of operations are performed to stabilize an image and to output a focal length value. The steps include capturing video by means of a video camera with unknown focal length running an image stabilization process operating on an input from a hardware detector detecting the displacement of the camera and on an adjustable focal length value. Inter-image displacement is corrected based on the input from the hardware detector and the adjustable focal length value. By evaluating the displacement and adjusting the focal length value until a satisfactory image stabilization is achieved a value of the focal length may be output.

Method and system for image stabilization

The present invention relates to a method and a camera for determining an image adjustment parameter. The method includes receiving a plurality of images representing an image view, detecting from the plurality of images events of a specific event type, identifying a location within the image view where the event of the specific type is present, determining a presence value of each of the identified locations, and determining an image adjustment parameter based on data from an adjustment location within the image view. The adjustment location is determined based on the presence value in each location of a plurality of locations within the image view.

Method and camera for determining an image adjustment parameter

A method and system are disclosed. The method may include determining a histogram of intensity values for pixels in image sensor data in which the histogram is bimodal. The method may include determining a breakpoint between the two modes. The histogram may include a first distribution of intensity values below the breakpoint and a second distribution of intensity values above the breakpoint. The method may include generating output intensity values. Generating output intensity values may include compressing the first distribution of intensity values of the pixels with intensity values below the breakpoint, stretching the second distribution of intensity values of the pixels with intensity values above the breakpoint, and generating an output image based on the output intensity values.

Defogging images and video

A method and apparatus for determining a focal-length setting of a lens mounted to a camera is disclosed. In a method for determining a focal-length of a lens mounted to a camera, a distorted image of a scene is captured. A distortion-correction function is applied on the distorted image or on a portion of the distorted image. A most representative distortion-correction function is identified and a current focal-length setting for the lens is identified by correlating the identification to a data compilation.

A method and camera are used for optimizing the exposure of an image frame in a sequence of image frames capturing a scene based on level of motion in the scene. Based on image data from a plurality of image sensor frames, regions of the scene are determined including different level of motion. Image frame regions for the image frame are determined, wherein an image frame region corresponds to at least one region of the scene. The exposure of the image frame is optimized by emulating a region specific exposure time for each image frame region by producing each image frame region using image data from a number of image sensor frames. The number of image sensor frames used to produce a specific image frame region is based on the level of motion in the at least one corresponding region of the scene.

Camera and method for optimizing the exposure of an image frame in a sequence of image frames capturing a scene based on level of motion in the scene

A monitoring camera is connected to an external power source. The external power source has an external maximum power level. Image data is being processed in a first processing state. The monitoring camera detects () an event and determines () a type of the detected event. An amount of energy in an energy accumulator is determined () in the monitoring camera. Based on the type of the event and based on the external maximum power level and based on the determined amount of energy in the energy accumulator, a second processing state is determined (). The second processing state requires a power level that is higher than the external maximum power level. Image data is then processed () in the second processing state.

Method and arrangement in a monitoring camera

The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprising a micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.

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Häljarp, Sweden

Andreas Nilsson