Abstract: A method for image processing comprising filtration and conversion to a radiometric color image based on an original image. The method gives the processed image high spatial resolution combined with high dynamic resolution. The original image is made available in digital format. Contrast-increasing filtration is performed on the original digital image. The original digital image is converted into a radiometric pseudocolor image based on a chosen color range in which each color corresponds to an absolute measured, radiated or reflected quantity of energy within a certain wavelength band and where the images are represented in a format containing a luminance component. The filtered contrast-increased original image is scaled in terms of the luminance component in the radiometric color image. The luminance component in the radiometric color image is replaced with the scaled, filtered contrast-increased luminance component of the original image.

Abstract: A method for signal conditioning of signals from a two-dimensional image by calculating the motion of an image in relation to an image plane. Two-dimensional structures in the image are correlated between images separated in time, using Radon transforms for two or more angles in order to reduce the correlation calculations from two-dimensional correlation to correlation of two or more one-dimensional projections. The one-dimensional projections are differentiated to obtain the gradients of the projections as the basis for the correlation of images separated in time and signal conditioning. The magnitude of the gradients of the projections is ignored and the sign value of the gradients is used for a binary representation as the basis for the correlation of images separated in time.

Abstract: The present disclosure relates to combination of images. A method according to an embodiment comprises: receiving a visual image and an infrared (IR) image of a scene and for a portion of said IR image extracting high spatial frequency content from a corresponding portion of said visual image. The method according to the embodiment further comprises combining said extracted high spatial frequency content from said portion of the visual image with said portion of the IR image, to generate a combined image, wherein the contrast and/or resolution in the portion of the IR image is increased compared to the contrast and/or resolution of said received IR image.

Abstract: A suspension arrangement for directional equipment. The arrangement includes a body that supports the equipment and that supports a drive motor with a driving belt sheave, a driven belt sheave coupled to the directional equipment and a drive belt running between the belt sheaves. To prevent random or periodic movements in the mounting of the supporting body being transmitted to the equipment, a stabilizing unit including two guide rollers mounted at a fixed distance from one another on a displaceable holder, is designed to act via the guide rollers upon the belt in the space between the driving belt sheave and the driven belt sheave.

Abstract: The invention is achieved by using a method for displaying a thermal image in an infrared (IR) thermal camera, comprising the steps of registering an outdoor temperature value, registering an indoor temperature value, calculating an isotherm level by using the registered temperature values and a temperature color alarm level, imaging a surface area to create an image of the temperature distribution in at least a part of the surface area, comparing the surface area temperature in at least one image point of the thermal image to the isotherm level, adjusting the color of the at least one image point in dependence of the relation between the surface area temperature in said at least one image point and the isotherm level and displaying the colored thermal image. The invention allows you to determine immediately, on-site, if a building is well insulated or not. It presents an easily interpreted and understandable thermal image which instantly draws a users attention to an identified critical area.

Abstract: A method for marking and analyzing at least one object in an IR image, for an embodiment, comprises receiving an image of an object scene comprising at least one object, receiving a first input control signal indicating pixel coordinates of a first selected object scene portion, locking a first marker of a camera on a first object region corresponding to said pixel coordinates in said object scene in response to said first input control signal, wherein said input control signal is generated by a user activating an input means by a single action. The invention for various embodiments also relates to an IR camera, a computer program product and an image processing system comprising such an IR camera.

Abstract: A camera has an infrared (IR) imaging subsystem that includes an IR detector. The camera also has a visual imaging subsystem for generating a visual image of an observed scene. The camera also has one or more distance measuring devices for obtaining distance related information regarding a distance from the camera to the scene and a processor arranged to receive distance related information from one or more distance measuring devices and process the received distance related information, wherein said processing comprises determining a distance to the scene based on the received distance related information. The IR imaging subsystem may also include an IR optical element for focusing IR radiation on the IR detector. The IR optical element may be operable to focus the IR radiation on the IR detector based on the determined distance.

Abstract: A method of compensating for atmospheric turbulence when recording film sequences. A frame for an image that is being currently recorded is compared at pixel level with a number of frames recorded earlier. Each pixel value in a current frame is compared with pixel values in earlier frames. A matrix is adjusted upward by one unit at positions where a new value is encountered at the positions. Values adjusted upwards in the matrix are retained for a limited number of frame comparisons. A summing window is drawn over the matrix and movement is deemed to have occurred in areas where a sum from the summing window exceeds a limit value. A compensated frame is created. All pixel values in areas where the summing window exceeds the limit value are derived from the current frame. Other values are derived through a temporal median filtering of a number of earlier frames recorded.

Abstract: A camera arranged to generate an IR image and a visible light image is proposed, said camera comprising a thermal imaging part for registering IR radiation from a first field of view, a visible light imaging part for registering visible light from a second field of view at least partially overlapping with the first field of view, and a processing device for processing the information related to the registered IR radiation and the registered visible light information. The processing device is arranged to identify any moving objects that are detectable by the thermal imaging part and not by the visible light imaging part, and presenting said moving objects, if any, in such a way that they will be easily recognizable by an operator.

Abstract: A camera has an infrared (“IR”) imaging subsystem that includes an IR detector. The camera also has a first and second visual imaging subsystem for generating a first visual image and a second visual image of an object in a scene. The first visual image and the second visual image have a parallax that is dependent on the distance to the object and based on a known parallax function. The camera also has a processor for determining the parallax between the first visual image and second visual images. The IR imaging subsystem may also include an IR optical element for focusing IR radiation on the IR detector. The IR optical element may be operable to focus the IR radiation on the IR detector based on the parallax between the first visual image and the second visual image.

Abstract: An image processing method and to an arrangement for implementing the method. The method includes filtering the original image with a low-pass filter for forming a low-pass filtered image, creating a high-pass filtered image by subtracting the low-pass filtered image from the original image, forming intermediate values from the created high-pass filtered image based on column-wise selection of pixel values in the suppression of column noise and row-wise selection of pixel values in the suppression of row noise, and subtracting formed intermediate values column-by-column and row-by-row from the original image. The arrangement includes a non-linear, one-dimensional digital finite impulse response filter, a computing unit for column-wise or row-wise formation of intermediate values, an image storage unit and a subtraction unit.

Abstract: An infrared (IR) camera comprising: a camera housing having an image capturing device; an objective with an optical lens system for generating an IR image of an object; a focusing mechanism for focusing the optical lens system; a focus ring that is displaceably mounted on the objective and adapted to control an electromechanical focusing servo system actuating the focusing mechanism dependent on a displacement of the focus ring.

Abstract: The present disclosure relates to combination of images. A method according to an embodiment comprises: receiving a visual image and an infrared (IR) image of a scene; extracting high spatial frequency content from said visual image; and combining said extracted high spatial frequency content from said visual image with said IR image, wherein a resolution for the visual image and the IR image are substantially the same, to generate a combined image.

Abstract: The present disclosure relates to a method of improving an IR image comprising capturing a visual image and an IR image of an object, altering a resolution of at least one of said visual image and IR image, high pass filtering said visual image to generate a processed visual image, low pass filtering said IR image to generate a processed IR image, and combining information from said processed visual image and said processed IR image to generate a combined image.

Abstract: An IR camera comprising an optical system further comprises an additional optical element arranged in the form of a disk that is transparent to the infrared radiation in the beam path and at least a first motor arranged to tilt the additional optical element around a first axis substantially perpendicular to the beam path, and a control device for controlling said at least first motor in dependence of a first registered movement of the camera.

Abstract: An IR camera includes a first optical subsystem for generating an IR image of an object and a second optical subsystem for generating a visual light image of the object. The IR camera further includes a focusing device for focusing the first optical subsystem. The IR camera also has a processor for determining a focus distance for focusing the first optical subsystem on the object. The processor determines the focus distance based on a displacement of a feature in the visual light image.