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: 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.

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 IR camera comprises: a thermal radiation capturing arrangement for capturing thermal radiation of an imaged view in response to input control unit(s) receiving user inputs from a user of the IR camera; a processing unit arranged to process the thermal radiation data in order for the thermal radiation data to be displayed by an IR camera display as thermal images; and a IR camera display arranged to display thermal images to a user of the IR camera. The IR camera is characterized in that the processing unit is further arranged to: determine at least one temperature reference value representing the temperature of the surrounding environment of the imaged view; and calculate at least one output power value indicative of an amount of energy dissipated in a part of the imaged view by using the temperature value of the thermal radiation data corresponding to said part of the imaged view and the at least one determined temperature reference value.

Abstract: A camera comprising a first imaging part for capturing IR image data of a first field of view, said first imaging part comprising IR optics, a second imaging part for capturing visible light data of a second field of view at least partially overlapping the first field of view, said second imaging part comprising visible light optics, a laser pointer for providing a laser dot in the second field of view, and means for adjusting the first and second field of view relative to each other in dependence of the focusing distance of the first or second imaging part. The camera is arranged to determine the distance z between the camera and an object being imaged by means of the distance d, using the stored relationship. The distance z may be used to align the IR image and the visible light image.

Abstract: An infrared (“IR”) camera includes first and second imaging parts for capturing an IR image and a visible light image, respectively. The field of view of the second imaging part at least partially overlaps the field of view of the first imaging part. The first imaging part includes IR optics. The second imaging part includes visible light optics. The IR camera also includes a focus motor for focusing at least one of the IR optics or the visible light optics. A sensor is operable to determine the position of the focus motor. Based on the position of the focus motor, a processor determines actual displacement for aligning the IR and visual light images. The actual displacement includes displacement due to parallax error and error due to the angle between the optical axes of the first and second imaging parts.

Abstract: The invention relates to a camera having optical systems for recording both IR images and visual images and a laser pointer. A method of determining the position of the laser spot in the IR image based on the position of the laser spot in the visual image is proposed. One or more parameters related to the displacement between the visual image and the IR image are used to determine the displacement of the laser spot in the IR image compared to the position detected in the visual image. In cameras providing functions for fusion or blending of IR and visual images, such parameters are determined during calibration to enable alignment of the images captured by the different optical systems. Hence, in such cameras, the displacement parameters are already present.

Abstract: The invention relates to a camera having optical systems for recording both IR images and visual images and a laser pointer. A method of determining the position of the laser spot in the IR image based on the position of the laser spot in the visual image is proposed. One or more parameters related to the displacement between the visual image and the IR image are used to determine the displacement of the laser spot in the IR image compared to the position detected in the visual image. In cameras providing functions for fusion or blending of IR and visual images, such parameters are determined during calibration to enable alignment of the images captured by the different optical systems. Hence, in such cameras, the displacement parameters are already present.

Abstract: A method of displaying together IR image data and visible light image data corresponding to the same field of view in the same image is disclosed, comprising displaying IR image data in at least a first portion of the image and visible light image data in at least a second portion of the image. The method is characterized by the step of displaying the IR image data according to a colouring scheme adapted to the temperature range relevant to the first portion of the image. The resolution in the relevant temperature range may be increased by applying the entire range of colours available in the colouring scheme to the selected temperature range.

Abstract: A method of fusing IR image data and visible light image data corresponding to the same field of view in the same image is disclosed, comprising displaying IR image data in at least a first portion of the image and visible light image data in at least a second portion of the image. The method is characterized by the step of displaying the IR image data according to a colouring scheme adapted to the temperature range relevant for the first portion of the image. The resolution in the relevant temperature range is increased by applying the entire range of colours available in the colouring scheme to the selected temperature range.

Abstract: A camera comprising a first imaging part for capturing IR image data of a first field of view, said first imaging part comprising IR optics, a second imaging part for capturing visible light data of a second field of view at least partially overlapping the first field of view, said second imaging part comprising visible light optics, and means for adjusting the first and second field of view relative to each other in dependence of the focusing distance of the first or second imaging part. One of the imaging parts comprises a motor for focusing of the optics, respectively, said camera further comprising sensing means arranged to sense the position of the motor and processing means arranged to determine the displacement needed to align the images based on the position of the focus motor.

Abstract: A camera comprising a first imaging part for capturing IR image data of a first field of view, said first imaging part comprising IR optics, a second imaging part for capturing visible light data of a second field of view at least partially overlapping the first field of view, said second imaging part comprising visible light optics, a laser pointer for providing a laser dot in the second field of view, and means for adjusting the first and second field of view relative to each other in dependence of the focusing distance of the first or second imaging part. The camera is arranged to determine the distance z between the camera and an object being imaged by means of the distance d, using the stored relationship. The distance z may be used to align the IR image and the visible light image.